Table of Contents
Troubleshooting
4. Troubleshooting
4.1
Error Codes and Description
Error
Codes
System
00
U2
U4
UA
Indoor Unit
A1
A5
A6
C4
C9
Outdoor Unit
E1
E5
E6
E7
E8
F3
F6
EA
H0
H6
H9
J3
J6
L3
L4
L5
P4
Displayed only when the system is shut down.
54
Normal condition
Low-voltage detection or over-voltage detection
Signal transmission error (between indoor unit and outdoor unit)
Installation error (between indoor unit and outdoor unit)
Indoor unit PCB abnormality
Freeze-up protection control
Indoor fan motor (DC motor) or related abnormality
Indoor heat exchanger thermistor or related abnormality
Room temperature thermistor or related abnormality
Outdoor unit PCB abnormality
OL activation (compressor overload)
Compressor lock
DC fan lock
Input overcurrent detection
Discharge pipe temperature control
High pressure control in cooling
Four way valve abnormality
Compressor sensor system abnormality
Position sensor abnormality
Outdoor temperature thermistor or related abnormality
Discharge pipe thermistor or related abnormality
Outdoor heat exchanger thermistor or related abnormality
Electrical box temperature rise
Radiation fin temperature rise
Output overcurrent detection
Radiation fin thermistor or related abnormality
Description
DAMA-SM-21-003
Reference Page
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Service Diagnosis
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Table of Contents
Troubleshooting
