Pioneer CB009GMFILCFHD Service Manual
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Pioneer CB009GMFILCFHD Service Manual

3d dc inverter heat pump
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ALL RIGHTS RESERVED. PARKER DAVIS HVAC INTERNATIONAL, INC., DORAL, FL 33172 USA
Phone: (800) 243-0340
www.highseer.com
Revision A: 1605, Content updated. 

Table of Contents

1.
Precaution
2.
Part Names And Functions
3.
4.
5.
6.
7.
8.
9.
15. Solar Panel
Installation MUST conform with local building codes or, in the absence of local codes, with the National
Electrical Code NFPA70/ANSI C1-1993 or current edition and Canadian Electrical Code Part1 CSA
C.22.1.
The information contained in the manual is intended for use by a qualified service technician familiar
with safety procedures and equipped with the proper tools and test instruments
Installation or repairs made by unqualified persons can result in hazards to you and others.
Failure to carefully read and follow all instructions in this manual can result in equipment malfunction,
property damage, personal injury and/or death.
This service is only for service engineer to use.
LIGHT COMMERCIAL SPLIT SYSTEMS
3D DC INVERTER HEAT PUMP
SERVICE MANUAL
Model Numbers: 
Indoor Unit Model Numbers: 
Ceiling Cassette 
 
Concealed Ducted   
CB009GMFILCFHD   
RB009GMFILCFHD   
CB012GMFILCFHD   
RB012GMFILCFHD   
CB018GMFILCFHD   
RB018GMFILCFHD   
CB024GMFILCFHD   
RB024GMFILCFHD   
CB036GMFILCFHD   
RB036GMFILCFHD   
CB048GMFILCFHD   
RB048GMFILCFHD   
 
Outdoor Unit: 
Standard Communication Circuit Models: 
YN009GMFI22RPD   
YN012GMFI22RPD   
YN024GMFI22RPD   
 
RS‐485 Communication Circuit Models: 
YN036GMFI17RUD   
YN038GMFI17RUD   
 
Single Zone
Floor, Ceiling, Low Wall 
FB009GMFILCFHD 
FB012GMFILCFHD 
UB018GMFILCFHD 
UB024GMFILCFHD 
UB036GMFILCFHD 
UB048GMFILCFHD 
YN018GMFI22RPD 
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Summary of Contents for Pioneer CB009GMFILCFHD

  • Page 1 Revision A: 1605, Content updated.  Table of Contents Model Numbers:  Precaution Indoor Unit Model Numbers:  Part Names And Functions Ceiling Cassette    Concealed Ducted    Floor, Ceiling, Low Wall  Dimension CB009GMFILCFHD    RB009GMFILCFHD    FB009GMFILCFHD  Service space CB012GMFILCFHD    RB012GMFILCFHD    FB012GMFILCFHD  Refrigerant Cycle Diagram CB018GMFILCFHD    RB018GMFILCFHD    UB018GMFILCFHD  Wiring Diagram CB024GMFILCFHD ...
  • Page 2 CONTENTS 1. Precaution ..............................1   1.1 Safety Precaution ........................1   1.2 Warning ............................1   2. Part Names and Features .......................... 4   2.1 Model Names of Indoor/Outdoor units ..................4   2.2 Part names of Indoor/Outdoor units .................... 5   2.3 Features .............................
  • Page 3 For 9K-24K outdoor unit: ........................ 84   For 36K-48K Outdoor Unit ......................85   Outdoor check function ........................86   16.3 Diagnosis and Solution ......................88   16.4 Main parts check ........................102   17. Disassembly Instructions ........................109   17.1 Indoor unit ..........................
  • Page 4  Be caution when unpacking and installing the product. 1. Precaution Sharp edges could cause injury, be especially careful of the case edges and the fins on the 1.1 Safety Precaution condenser and evaporator.  For installation, always contact the ...
  • Page 5  If strange sounds or smoke comes  Install the drain hose to ensure that from product, turn the breaker off or water is drained away properly. disconnect the power supply cable. A bad connection may cause water leakage. There is risk of electric shock or fire. ...
  • Page 6  Do not insert hands or other objects through air inlet or outlet while the product is operated.  Do not drink the water drained from the product.  Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.
  • Page 7 2. Part Names and Features 2.1 Model Names of Indoor/Outdoor units Outdoor units Series Capacity Indoor units Cassette CB009GMFILCFHD Duct YN009GMFI22RPD RB009GMFILCFHD Console FB009GMFILCFHD Cassette CB012GMFILCFHD Duct YN012GMFI22RPD RB012GMFILCFHD Console FB012GMFILCFHD Cassette CB018GMFILCFHD Duct YN018GMFI22RPD RB018GMFILCFHD Floor Ceiling UB018GMFILCFHD Cassette...
  • Page 8 2.2 Part names of Indoor/Outdoor units Ceiling Cassette Unit...
  • Page 9 Ducted Concealed Units...
  • Page 10 Floor Console Units...
  • Page 11 Ceiling-Floor Units...
  • Page 12 2.3 Features 2.3.1 Duct Units 2.3.1.1 Installation accessories: (Field Supplied / Optional)  Front Board, Canvas Air Passage, Filter, Panel, for easy installation Panel 2.3.1.2 Easy Installation: Two air inlet styles (Bottom side or Rear side)  Air inlet from rear is standard for all capacity; air inlet from bottom is optional. ...
  • Page 13 2.3.1.4 Easy maintenance  Clean the filter (Optional, standard product without filter) It is easy to draw out the filter from the indoor unit for cleaning, even the filter is installed in rear side or bottom side.  Replace the motor or centrifugal fan Remove the ventilated panel firstly.
  • Page 14 2.3.2. 7 Build-in Drain Pump with f loat s witch  The drain pump can lift the condensing water up to 750mm upmost.  It’s convenient to install drainage piping under most space condition. 2.3.1.8 Built-in display board  The standard indoor unit can be controlled by wired controller. ...
  • Page 15 2.3.2 Cassette Unit 2.3.2.1 Lower Noise  Optimize air channel system design to ensure the maximum quietness and comfort.  Noise max down 6dB. 2.3.2.2 Turbo mode (Optional) Turbo function can boost cooling or heating speed in a short period, and makes the room cool ...
  • Page 16 2.3.2.6 Build-in Drain Pump  The drain pump can lift the condensing water up to 750mm upmost.  It’s convenient to install drainage piping under most space condition. 2.3.2.7Terminals for alarm lamp and long-distance on-off controller connection are standard  Reserve terminals for the connection of alarm lamp and long-distance on-off controller, more human control.
  • Page 17 2.3.3 Console 2.3.3.1. Modern and elegant appearance  The simple and stylish designs can nicely harmonies with your living space. 3.2.3.2. Four panels optional 2.3.3.3. Two air-outlet ways Cooling mode Quick Cooling To maintain room temp  Air outlet from top and bottom to make quick cooling ------When the A/C is just switched on, or room temp.
  • Page 18 Heating mode  Anti-cold air ------When the AC is just turn on, temperature of evaporator is very low, in this case, in order to prevent cold air direct blowing, only the upper louver is opened in a high position, the lower louver closed.
  • Page 19 2.3.1 Ceiling-floor Units 2.3.1.1 Two-way installation  The rounded design of the ceiling and floor type air conditioner allows either ceiling or floor-level installation. Ceiling installation saves room space, while floor installation helps prevent the loss of warm air. 2.3.1.2 Brief design ...
  • Page 20 2.3.1.4 Optional drainage pipe connection  Both right side and left side drainage holes are available to avoid the space limitation for drainage pipe installation. Make you more convenient during installation. C Panel (LED display) D Panel 2.3.1.5 Convenience operating and easy maintenance ...
  • Page 21 3. Dimension 3.1 Indoor Unit Duct Units air inlet from rear side Air filter ( optional ) 4-install hanger Liquid side 25 Drain pipe Gas side 25 Drain pipe Test mouth & Test cover 25 Drain connecting pipe ( for pump ) Electric control box Fresh air intake Air filter ( optional )
  • Page 22 Cassette Units (9K, 12K, 18K) Liquid side Gas side Body Drain hole Wiring connection port ( for Service ) E-parts box 4-Screw hole (for install panel) 4-install hanger Drain pipe Fresh air intake Wiring connection port Panel...
  • Page 23 Cassette Units (24K, 36K, 48K) 92 92 Fresh air intake 4-install hanger Body Gas side Liquid side Wiring connection port E-parts box Service hole for Test mouth & Test cover draining pump Drain hole 92 92 92 92 Panel Capacity (Btu/h) inch 6.30 2.95...
  • Page 24 Console Units Hanging arm 16 Drain pipe Unit: mm...
  • Page 25 Ceiling-floor Units (18K-48K) Wiring connection port Drain discharge port Fresh air intake Refrigerant pipe hole Hanging arm Capacity (Btu/h) 1068 18K / 24K inch 42.05 26.57 9.25 38.70 1285 1200 inch 50.59 26.57 9.25 47.24 1650 1565 inch 64.96 26.57 9.25 61.61...
  • Page 26 3.2 Outdoor Unit Note: The above drawing is only for reference. The appearance of your units may be different. Model YN009GMFI22RPD inch 30.3 11.8 21.9 33.1 19.2 11.7 YN012GMFI22RPD inch 31.5 13.1 21.8 34.3 20.2 13.4 YN018GMFI22RPD inch 33.3 14.3 27.6 36.0 21.3...
  • Page 27 4. Service Space 4.1 Indoor Unit Duct Units Ensure enough space required for installation and maintenance. 200mm(7.87in) or more 300mm(11.81in) or more 600mmx600mm/23.62inx23.62in Check orifice All the indoor units reserve the hole to connect the fresh air pipe. The hole size as following Cassette Units Unit: mm...
  • Page 28 Console Unit Ceiling-floor Units...
  • Page 29 4.2 Outdoor Unit (Wall or obstacle) More than 30cm(11.81in) Air inlet More than 60cm More than 30cm (23.62in) (11.81in) Maintain channel More than 60cm Air inlet (23.62in) Air outlet More than 200cm(78.74in)
  • Page 30 5. Refrigerant Cycle Diagram INDOOR OUTDOOR Electronic CAPILIARY TUBE expansion valve LIQUID SIDE 2-WAY VALVE T3 Condenser temp. sensor HEAT EXCHANGE (EVAPORATOR) HEAT T4 Ambient T1 Room temp. T2 Evaporator EXCHANGE temp. sensor sensor temp. sensor (CONDENSER) middle T2B Evaporator temp.
  • Page 31 6. Wiring Diagram 6.1 Indoor Unit CB009GMFILCFHD, CB012GMFILCFHD, CB018GMFILCFHD，CB024GMFILCFHD RB009GMFILCFHD, RB012GMFILCFHD, RB018GMFILCFHD，RB024GMFILCFHD...
  • Page 32 FB009GMFILCFHD, FB012GMFILCFHD UB018GMFILCFHD...
  • Page 33 UB018GMFILCFHD CB036GMFILCFHD，CB048GMFILCFHD...
  • Page 34 RB036GMFILCFHD，RB048GMFILCFHD...
  • Page 35 UB036GMFILCFHD UB048GMFILCFHD...
  • Page 36 UB036GMFILCFHD, UB048GMFILCFHD...
  • Page 37 6.2 Outdoor Unit YN009GMFI22RPD, YN012GMFI22RPD...
  • Page 38 YN018GMFI22RPD...
  • Page 39 YN024GMFI22RPD...
  • Page 40 YN036GMFI17RUD...
  • Page 41 YN048GMFI17RUD  ...
  • Page 42 Outdoor Controller Set of For YN009GMFI22RPD, YN012GMFI22RPD: For YN018GMFI22RPD:...
  • Page 43 For YN024GMFI22RPD, YN036GMFI17RUD 7. Fan Curves Static Pressure ENC2 Range In. WG (Pa) Model 0.02 0.04 0.08 0.12 0.16 0-0.18 Model≤12 (10) (20) (30) (40) (0-45) 0.04 0.10 0.14 0.18 0.22 0-0.28 Model Model=18 (10) (25) (35) (45) (55) (0-70) (K Btu/h) 0.04 0.10...
  • Page 44 RB009GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4...
  • Page 45 RB012GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4...
  • Page 46 RB018GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4...
  • Page 47 RB024GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4...
  • Page 48 RB036GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4...
  • Page 49 RB048GMFILCFHD Code 0 Code 1 Code 2 Code 3 Code 4...
  • Page 50 8 Electric Characteristics Indoor Unit Model Voltage Min. Max. CB009GMFILCFHD 208-230V 187V 253V 208-230V 187V 253V RB009GMFILCFHD FB009GMFILCFHD 208-230V 187V 253V CB012GMFILCFHD 208-230V 187V 253V 208-230V 187V 253V RB012GMFILCFHD FB012GMFILCFHD 208-230V 187V 253V CB018GMFILCFHD 208-230V 187V 253V 208-230V 187V 253V...
  • Page 51 9 Sound Level 9.1 Indoor unit Concealed Duct Type Discharge Suction Duct Duct 1.4m Microphone Noise level dB(A) Model RB009GMFILCFHD RB012GMFILCFHD RB018GMFILCFHD RB024GMFILCFHD RB036GMFILCFHD RB048GMFILCFHD...
  • Page 52 1.4m Microphone Noise level dB(A) Model CB009GMFILCFHD CB012GMFILCFHD CB018GMFILCFHD CB024GMFILCFHD CB036GMFILCFHD CB048GMFILCFHD...
  • Page 53 Microphone 1.5m Noise level dB(A) Model FB009GMFILCFHD FB012GMFILCFHD Microphone 1.5m Air outlet side Microphone Noise level dB(A) Model UB018GMFILCFHD UB024GMFILCFHD UB036GMFILCFHD UB048GMFILCFHD...
  • Page 54 9.2 Outdoor unit Outdoor Unit Microphone 1.0m Note: H= 0.5 × height of outdoor unit Model Noise Level dB(A) YN009GMFI22RPD YN012GMFI22RPD YN018GMFI22RPD YN024GMFI22RPD YN036GMFI17RUD YN048GMFI17RUD...
  • Page 55 10 Accessories Duct Units Name Shape Quantity Soundproof / insulation sheath Tubing & Fittings Binding tape Seal sponge Drain joint Drainpipe Fittings (for cooling & heating) Seal ring Wired controller Wired controller & Its Frame ， Owner s manual Others Installation manual Magnetic ring (twist the electric wires L EMS &...
  • Page 56 provided the following accessories) Remote controller holder Mounting screw(ST2.9×10-C-H) Remote controller manual Alkaline dry batteries (AM4) Owner's manual Others Installation manual Installation accessory Expansible hook (The product you have might not be provided the Installation hook following accessories Orifice Console Units Name Shape Quantity...
  • Page 57 11 The Specification of Power Type 9K-18K Phase 1-phase 1-phase Power Frequency and Voltage 208-230V, 60Hz 208-230V, 60Hz Circuit Breaker/ Fuse (A) 25/20 40/30 Indoor Unit Power Wiring (mm Ground Wiring Indoor/Outdoor Outdoor Unit Power Wiring 3×2.5 3×2.0 Connecting High Voltage Signal 4×1.0 4×1.5 Wiring...
  • Page 58 12 Field Wiring 36,000 and 48,000 BTU Models...
  • Page 59 blockage of the heat exchanger in the 12 Installation Details outdoor unit.  If is built over the unit to prevent direct sunlight, rain exposure, direct strong wend, 12.1 Location selection snow and other scraps accumulation, make Indoor unit location selection 12.1.1 sure that heat radiation from the condenser ...
  • Page 60 Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings). 12.2.1.4 Install the main body ② Stick the attached seal sponge as per the Make the 4 suspender through the 4 hanger of indicating place in the following fig, and then the main body to suspend it.
  • Page 61 Select the position of installation hooks according to the hook holes positions showed in upper picture. Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings). 12.2.2 Cassette indoor unit installation 12.2.2.1 Service space for indoor unit Face the concave side of the installation hooks toward the expansible hooks.
  • Page 62 The body's lower part should sink into the ceiling for 10~12 mm. In general, L is half of the screw length of the installation hook. Tighten the screws under the panel hooks till Locate the air conditioner firmly by wrenching the panel closely stick on the ceiling to avoid the nuts after having adjusted the body's condensate water.
  • Page 63 12.2.3.2 Install the main body  Fix the hook with tapping screw onto the wall Capacity (Btu/h)  Hang the indoor unit on the hook. 1200 (The bottom of body can touch with floor or 1565 suspended, but the body must install vertically.) ②...
  • Page 64 14.2.1.3 Install the main body ② Wall-mounted installation ① Ceiling installation (The only installation Hang the indoor unit by insert the tapping screws method for the unit with drain pump) into the hanging arms on the main unit. (The bottom Remove the side board and the grille.
  • Page 65 between indoor and outdoor unit not exceeded the date in the following table. Max. Length Max. Elevation Model 9,000Btu/h 82.2 32.9 12,000Btu/h 82.2 32.9 18,000Btu/h 98.7 65.8 Model inch inch inch 24,000Btu/h 164.5 82.2 21.61 12.80 13.78 36,000Btu/h 213.8 98.7 21.61 12.80 13.78...
  • Page 66 ● Moisture in the refrigerant circuit may 1/2" 15.4 15.8 freeze and block capillary tubing. (12.7) ● Water may lead to corrosion of parts in the 5/8" 18.6 19.1 refrigerant system. (15.9) Therefore, the indoor units and the pipes 3/4" (19) 22.9 23.3 between indoor and outdoor units must be leak...
  • Page 67 vacuum pump. Confirm that the gauge the gauge indicates 0.3Mpa (43.5Psi) to 0.5 needle does not move (approximately 5 Mpa (72.5Psi). minutes after turning off the vacuum pump). 6). Disconnect the charge set and the charging 7) Turn the flare nut of the 3-way valves about cylinder, and set the 2-way and 3-way valves to 45°...
  • Page 68 pressure of the low side), disconnect the charge Do this quickly so that the gauge ends up hose from the 3-way valve’s service port indicating 0.3Mpa (43.5Psi) immediately and turn off the air conditioner (72.5Psi). before disconnecting the hose. Disconnect the charge set, and tighten the 7).
  • Page 69 7). Mount the valve stems nuts and the service 1). Connect the charge hose to the charging port cap cylinder, open the 2-way valve and the 3-way Be sure to use a torque wrench to tighten the valve service port cap to a torque 18N.m. Connect charge hose...
  • Page 70  Adopt suitable pipe diameter For Vertical drainage pipe (The following  Adopt nearby condensate water discharge table is for reference) Reference Allowable 12.5.2 Key points of drainage water pipe value maximum inner Remark installation pipe water diameter of flowrate (l/h) Considering the pipeline route and pipe (mm) elevation...
  • Page 71 Drainage pipe Drainage pipe Drain tee Drainage pipe Water flow Hanger Water flow Water flow Water flow Water flow Down incline pipe Drain tee Drain tee Water flow Water flow Water flow Water flow A:Length of horizontal pipe ≤ 150mm B: Lift height ≤...
  • Page 72 drainage outlet. (In light of the length of drainage pipe, water shall be discharged about 1 minute delayed) 2.3 Stop the operation of air conditioner, power off the power supply and put the cover of water test hole back to the original place. After stopped the air conditioner 3 minutes, check whether there is anything abnormal.
  • Page 73 Ice-blockage shall cause abnormal Special vacuum drying operation of system, while copper oxide The special vacuum drying method shall be shall damage compressor. adopted when:  Eliminating the non-condensable gas (air) in system to prevent the components  Finding moisture during flushing refrigerant oxidizing, pressure fluctuation and bad heat pipe.
  • Page 74  After the vacuum drying process is carried out, additional refrigerant charge Purpose of refrigerant pipe insulation process needs to be performed.  During operation, temperature of gas pipe  The outdoor unit is factory charged with and liquid pipe shall be over-heating or refrigerant.
  • Page 75  The insulation material at the joint pipe  All field wiring construction should be shall be banded to the gap pipe and liquid pipe finished by qualified electrician. tightly.  Air conditioning equipment should be  The linking part should be use glue to paste grounded according to the local electrical together regulations.
  • Page 76  The gas-side and liquid-side stop values are both opened.  The air conditioner is pre-heated by turning on the power. Test operation Set the air conditioner under the mode of "COOLING" by remote controller, and check the following points. Indoor unit ...
  • Page 77 13. Operation Characteristics Temperature Cooling operation Heating operation Drying operation Mode 0℃～30℃ 10℃～32℃ Room temperature 17℃～32℃(62℉～90℉) (32℉～86℉) (50℉～90℉) 0℃～50℃ (32℉～122℉) Outdoor temperature -15℃～30℃ （-15℃～50℃(5℉～122℉)：For (Entry level) (5℉～86℉) the models with low temperature 0℃～50℃ cooling system） (32℉～122℉) Outdoor temperature -25℃～30℃ -25℃～50℃(-13℉～122℉) (E-Star level) (-13℉～86℉) Outdoor temperature...
  • Page 78 14. Electronic Function 14.1 Abbreviation T1: Indoor room temperature T2: Coil temperature of indoor heat exchanger middle. T2B: Coil temperature of indoor heat exchanger outlet. 14.2.1 Icon explanation on indoor display board T3: Coil temperature of condenser (Ceiling Floor) T4: Outdoor ambient temperature T5: Compressor discharge temperature Td: Target temperature 14.2 Display function...
  • Page 79 3 times when fan motor restarts continuously, ---T3>60°C(140°F) seconds, the unit will stop and the LED will display the compressor will stop until T3<52°C(125.6°F). failure. 14.3.10 Evaporator low temperature T2 When outdoor fan speed keeps too low (lower protection than 100RPM) or too high (higher than ---T2<0°C(32°F), the compressor will stop and 1500RPM) for 60s, the unit will stop and the ≧...
  • Page 80 In cooling mode, indoor fan runs all the time Setting fan T1-Td+1.5 ℃(34.7°F) Actual fan speed speed and the speed can be selected as high, -1.5(29.3°F) H-（H-=H-G) medium, low and auto. -3.0(26.6°F) H（=H） -4.5(23.9°F) H+(H+=H+G) The indoor fan is controlled as below: -1.5(29.3°F) M-(M-=M-Z) -3.0(26.6°F)
  • Page 81 for 15 minutes and then choose mode no longer than 10min Compressor X1 10S according to T1-Ts. If the setting temperature is modified, the machine will choose running function again. 4-Way valve 14.4.5 Drying mode Outdoor fan Drying mode works the same as cooling mode in low speed.
  • Page 82 setting temperature stops rising and indoor fan the room temperature detected from its own is fixed at low speed. (Anti-cold wind function room temperature sensor setting has the priority). temperature. 14.4.7.3 Operation time in sleep mode is 7 hours. After 7 hours the AC quits this mode and 14.4.10 8℃...
  • Page 83 Point check function Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will keep ring for two seconds. The air conditioner will enter into the information enquiry status. You can press the LED DISPLAY or AIR DIRECTION button to check the next or front item’s information.
  • Page 84 When the AC enter into the information enquiry status, it will display the code value in the next 25s , the details are as follows. Enquiry Display value Meaning Remark information T1,T2,T3,T4, -1F,-1E,-1d,-1c,- -25,-24,-23,-22,-21,-2 1. All the displaying temperature is actual T2B,TP,TH, 1b,-1A value.
  • Page 85 16. Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) For other models, please connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, - terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.
  • Page 86 16.1 Indoor Unit Error Display Operation Timer lamp Display LED STATUS lamp ☆ 1 time Indoor unit EEPROM parameter error Communication malfunction between indoor and ☆ 2 times outdoor units ☆ 4 times Indoor fan speed has been out of control ☆...
  • Page 87 16.2 Outdoor unit error display For 9K-24K outdoor unit: LED2 LED1 Problems IU display (Green) (Red) standby for normal Operation normally Compressor drive board EEPROM error ☆ IPM malfunction or IGBT over-strong current protection ☆ Over voltage or too low voltage protection Inverter compressor drive error ☆...
  • Page 88 For 36K-48K Outdoor Unit Problems Error Code Communication malfunction between indoor and outdoor units Current overload protection Outdoor ambient temperature sensor (T4 ) malfunction Condenser coil temperature sensor (T3) malfunction Compressor discharge temperature sensor (T5) malfunction Outdoor unit EEPROM parameter error Outdoor fan speed has been out of control Inverter module (IPM) malfunction Over-voltage or under-voltage protection...
  • Page 89 Outdoor check function Display Remark Display running frequency, running state or malfunction Normal display code Actual data*HP*10 If capacity demand code is higher than 99, the digital display tube will show single digit and tens digit. (For example, the Indoor unit capacity demand code digital display tube show “5.0”,it means the capacity demand is 15.
  • Page 90 Frequency limit caused by Bit7 IGBT radiator The display value is Frequency limit caused by Bit6 number. example, the digital Bit5 Frequency limit caused by T4. display tube show Bit4 Frequency limit caused by T2. Frequency limit symbol then Bit5=1, Bit3 Frequency limit caused by T3.
  • Page 91 16.3 Diagnosis and Solution 16.3.1 EEPROM error diagnosis and solution (E0/F4) E0/F4 Error Code Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. Supposed causes Installation mistake ● PCB faulty ● Trouble shooting: EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.
  • Page 92 16.3.2 Communication malfunction between indoor and outdoor units diagnosis and solution (E1) Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions 110 seconds and this condition happens four times continuously. Supposed causes Wiring mistake ●...
  • Page 93 Remark: Use a multimeter to test the DC voltage between 2 port and 3 port of outdoor unit. The red pin of multimeter connects with 2 port while the black pin is for 3 port. When AC is normal running, the voltage will move alternately between -50V to 50V.
  • Page 94 16.3.3 Fan speed has been out of control diagnosis and solution (E3) Error Code Malfunction decision When indoor fan speed keeps too low (300RPM) for certain time, conditions the unit will stop and the LED will display the failure. Wiring mistake ●...
  • Page 95 Index 1: 1. Indoor DC fan motor(control chip is inside fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must have problems and need to be replaced.
  • Page 96 16.3.4 Open circuit or short circuit of temperature sensor diagnosis and solution (E4/E5/F1/F2/F3) Error Code E4/E5/F1/F2/F3 Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure. Supposed causes Wiring mistake ●...
  • Page 97 16.3.5 Refrigerant Leakage Detection diagnosis and solution (EC) Error Code Malfunction decision Define the evaporator coil temp.T2 of the compressor just starts conditions running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 ＜Tcool－2℃ does not keep continuous 4 seconds and this situation happens 3 times, the display area will show “EC”...
  • Page 98 Water-level alarm malfunction 16.3.6 diagnosis and solution Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the conditions failure. ● Wiring mistake ● Water-level switch faulty Supposed causes ● Water pump faulty ● Indoor PCB faulty...
  • Page 99 16.3.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution (P0) Error Code Malfunction decision When the voltage signal that IPM send to compressor drive chip conditions is abnormal, the display LED will show “P0” and AC will turn off. Wiring mistake;...
  • Page 102 16.3.8 Over voltage or too low voltage protection diagnosis and solution (P1) Error Code Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. Power supply problems. ● Supposed causes System leakage or block ●...
  • Page 103 16.3.9 High temperature protection of compressor top diagnosis and solution (P2) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions Power supply problems. ● Supposed causes System leakage or block ● PCB faulty ●...
  • Page 104 16.3.10 Inverter compressor drive error diagnosis and solution(P4) Error Code An abnormal inverter compressor drive is detected by a special Malfunction decision detection circuit, including communication signal detection, conditions voltage detection, compressor rotation speed signal detection and so on. Wiring mistake; IPM malfunction; Outdoor fan ass’y faulty Supposed causes Compressor malfunction;...
  • Page 105 16.4 Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter.
  • Page 106 Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (℃--K) K Ohm K Ohm K Ohm K Ohm ℃ ℉ ℃ ℉ ℃ ℉ ℃ ℉ 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148 101.517 11.5 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683 89.5865...
  • Page 107 Appendix 2 Temperature Sensor Resistance Value Table for T5 (℃--K) K Ohm K Ohm K Ohm K Ohm ℃ ℉ ℃ ℉ ℃ ℉ ℃ ℉ 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73 12.65 3.492 455.9 59.98 12.21 3.392 430.5 57.37...
  • Page 108 Appendix 3: 10 11 12 13 14 15 16 17 18 19 20 21 22 ℃ 48 50 52 54 56 58 60 62 64 66 68 70 72 ℉ 23 24 25 26 27 28 29 30 31 32 33 34 35 ℃...
  • Page 109 2. Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ATF310D43UMT ATQ420D1UMU ASN98D22UFZ ASM135D23UFZ ATF235D22UMT ATF250D22UMT Blue - 0.65 Ω Ω 0.38 0.75 Ω 1.75 Ω 0.75 Ω Blue - 1.57 Ω Black Red - Blue...
  • Page 110 3. IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red...
  • Page 111 Heating Chart: HEATING MODE Outdoor temp. Indoor ℉ ( ℃ ) Temp. 57 (13.89) 47 (8.33) 37 (2.78) (-2.78) (-8.33) 30.3 28.5 25.3 22.8 20.8 32.5 30.0 26.6 25.4 23.3 33.8 31.5 27.8 26.3 24.9 3.03 2.85 2.53 2.28 2.08 3.25 3.00 2.66...
  • Page 112 17. Disassembly Instructions Note: This part is for reference, the photos may have slight difference with your machine. 17.1 Indoor unit Ducted Unit  Parts name Procedures Remarks Remove the 1) Screw off the screws to electronic remove the cover of control box electronic control box Four screws...
  • Page 113 3）Move the display board according to the arrow direction to disassemble Remove the 1) Remove the cover of Repeat the operation of step1 of No1 electronic control box Pull out all the plugs or connectors connected to the PCB and remove the ground wire after remove the screw.
  • Page 114 Remove the 1) Screw off the fixing fan motor screws to remove the rear cover board Rear cover board 5 screws 2) Screw off the fixing screws to remove the Rear beam rear beam Total four screws at the left side and right side 3) Remove room Cut off the fastening temperature sensor...
  • Page 115 Remove the 1) Remove the rear cover Repeat the operation of step1 of No.5 water board collector 2) Screw off the screws to 4 screws assembly remove the water collector assembly 3 screws 3 screws 3 screws Water collector assembly Remove the 1) Remove the water Repeat the operation of No.6...
  • Page 116 4) Remove the evaporator support board 4 screws 5) Screw off the fixing screws to remove the evaporator 1 screw...
  • Page 117  Cassette Unit Parts name Procedures Remarks Remove the 3) Open the grille filter Grill switch 4) Remove the filter Note: the filter is easy to be damaged, be careful when removing it. Remove the 4) Open the grille Repeat the operation of step1 of No.1 panel 5) Remove the grille ...
  • Page 118 board cover(4 screws)  Remove the display board(4 screws) 4 screws Remove the 1) Remove the panel Repeat the operation of step1,2,3 of No.2 swing 2) Screw off 3 screws to motor remove the swing motor assy. 3 screws 3) Screw off 1 screws to remove the swing motor.
  • Page 119 3) Pull out all the Indoor fan Pump connection wires to other Water lever Temp. sensors parts, then the PCB can be replaced. Swing motor Power Input Display board 4) There are 2 buckles fixing the PCB. To draw out the PCB, you should open them.
  • Page 120 3) Remove the fixing nut to disassemble the fan wheel 4) Pull out the fan wheel Remove the 1) Repeat the operation of fan motor No.6 2) Remove the fixing board of fan motor wire 3 nuts 3) Remove the 5 screws to disassemble the fan motor 5 screws...
  • Page 121 assembly 8) Screw off the 4 screws inside 4 holes (1 is under a protection cover) to remove the water collecting assembly. 9) Take out the water collecting assembly Remove the 1) Remove the panel Repeat the operation of No.2 draining 2) Remove the electronic Repeat the operation of No.6...
  • Page 122 6) There are 2 screws under the supporter to fixing the pump. Release them to take the pump out of the supporter. Remove the 1) Remove the water Repeat the operation of No.9 evaporator collecting assembly 2) Remove the seal board of evaporator 3 screws 3) Remove the evaporator...
  • Page 123 Console Unit  Parts Procedures Remarks push push name Remove 1) Slide the two the Filter stoppers on the left and right sides to open the front panel 2) Remove the filter.  Open the front panel Remove 1) Remove the air Repeat the operation of step1 of No.1 front panel ...
  • Page 124 4) Remove the installation plate of electric parts 5) Remove the fixing board of electronic control box 6) Disconnect the DC motor wire, 2 louver motor Louver motor connector wires, evaporator coil Screws of the grounding wire temperature sensor(T2) wire, Louver motor connector and two DC motor connector...
  • Page 125 2) Disconnect all the wires of plugs connected to the PCB 3) Remove two fixing screws to remove the PCB 2 screws Remove 1) Remove the Repeat the operation of step1~step of No2. the display electronic board control box 2) Remove the fixing glue to remove the display board...
  • Page 126 2) Remove the 1 fixing screw to remove air outlet grille 1 screw assembly 3) Disconnect louver motor wire Repeat the operation of No.7 to remove the air outlet grille Remove 1) Remove the air assembly the louver outlet grille motor of assembly air outlet...
  • Page 127 2) Disconnect louver motor wire Louver motor connector 3) Remove 4 fixing screws to disassemble the water collector 4 screws Repeat the operation of No.2 to remove the electronic control Remove 1) Remove the electronic evaporator control box Repeat the operation of No.7 to remove the air outlet grille assembly 2) Remove the air assembly...
  • Page 128 4) Remove the evaporator assembly Repeat the operation of No.2 to remove the electronic control Remove 1) Remove the electronic centrifugal control box Repeat the operation of No.7 to remove the air outlet grille 2) Remove the air assembly outlet grille assembly 3) Remove four fixing screws to...
  • Page 129 17.2 Outdoor unit  YN009GMFI22RPD, YN012GMFI22RPD Part name Procedures Remarks Panel plate How to remove the panel plate. 1)Stop operation of the air conditioner and turn “OFF” the power breaker. 2) Remove the big handle Screws of top panel(3 screws,1 screws is under the big handle) first,then remove the top cover (3 screws) 3 screw of...
  • Page 130 1)After remove the panel plate following procedure 1 reactor Compressor and liquid-gas separator ○ 2) Remove the nut fixing the fan,and remove the fan. ○ 3) Unfix the hooks and then open the electronic control box cover.
  • Page 131 4) Disconnect the connector for fan motor from the electronic control board. ○ 5) Remove the four fixing screws of the fan motor, ○ then remove the motor.
  • Page 132 Electrical How to remove the parts electrical parts. After finish work of ○ item 1 and item 2, remove the two connectors for the compressor and the reactors. ○ Pull out the two blue wires connected with the four way valve. ○...
  • Page 133 heater connector. ○ 5) Disconnect the electronic expansion valve ○ wire from the control board ○ ○ 6) Remove the ground wires . 7) Remove the power supply wires(old label, L1,L2,S, new label 1,2,3). 8) Then remove the electronic control box.
  • Page 134 Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. Perform work of item ○ ○ 1,2,3. Recover refrigerant from the refrigerant circuit. Remove the screw of the coil and then remove the coil.
  • Page 135  YN018GMFI22RPD Part name Procedures Remarks Panel plate How to remove the panel plate. 4 screws of top panel 1) Stop operation of 3 screws of the air conditioner and turn big handle “OFF” the power breaker. 9 screws of front panel ○...
  • Page 136 Fan ass’y How to remove the fan ass’y. ○ 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove the fan. ○ 2) Unfix the hooks and then open the electronic control box cover.
  • Page 137 3) Disconnect the connector for fan motor from the electronic control board. 4) Remove the four fixing ○ screws of the fan motor. 5) Then remove the fan motor. Electrical How to remove the parts ○ electrical parts. 1) After finish work of item 1 and item 2, remove the connectors for the compressor and reactor.
  • Page 138 2) Pull out the two blue ○ wires connected with the four way valve. ○ ○ 3) Pull out connectors of the compressor top temp. sensor, condenser coil temp. sensor(T3),outdoor ambient temp. sensor(T4) and discharge temp. sensor(T5). ○ 4) disconnect the electronic expansion valve wire 5) remove the compressor...
  • Page 139 6) Remove the grounding screw. 7) Remove the power ○ supply wires(old label, L1,L2,S; new label 1,2,3). 8) Then remove the electronic control box. ○...
  • Page 140 Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. 1) Perform work of ○ item1,2,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil.
  • Page 141 YN024GMFI22RPD Part name Procedures Remarks Panel plate How to remove the panel 3 screws of top panel plate. 1) Stop operation of the air conditioner and turn “OFF” the power 4 screws of big breaker. handle 11 screws of front panel ○...
  • Page 142 ass’y. ○ 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove the fan. ○ 2) Unfix the hooks and screws,then open the electronic control box cover. Compressor wire T3,T4,T5 sensor wire 4 way valve Electric pipe heater Electronic expansion...
  • Page 143 board. ○ Remove the four fixing screws of the fan motor. ○ 3) Then remove the fan motor. Electrical ○ How to remove the parts electrical parts. 1) After finish work of item 1 and item 2, remove ○ the three connectors for the compressor and the compressor crankcase heater and the electric...
  • Page 144 ambient temp. sensor(T4) and discharge temp. ○ sensor(T5). 4)Disconnect the electronic expansion valve wire from the control board ○ ○ ○ 5) Remove the grounding screw. 6) Remove the power supply wires (old label, L1,L2,S; new label 1,2,3). ○ ○ 7) Then remove the electronic control box.
  • Page 145 Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. ○ ○ 1) Perform work of item1,2,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil.

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