Table of Contents
[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-6-16
Error Code [4230] Detail Code 126
1. Error code definition
DCL temperature fault (Detail code 126)(outdoor unit)
2. Error definition and error detection method
When DCL temperature that equals or exceeds 170°C is detected (applicable to INV30YC only)
3. Cause, check method and remedy
Cause
(1)
Fan inverter board fault
(2)
Outdoor unit fan fault
(3)
DCL temperature sen-
sor connector contact
failure
(4)
DCL error
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page 337)
7-6-17
Error Code [4240]
1. Error code definition
Overload protection
2. Error definition and error detection method
If the output current of "(Iac) >Imax (Arms)" or "THHS > TOL" is continuously detected for 10 minutes during inverter operation.
refer to the following page(s). [7-1 Error Code and Preliminary Error Code Lists](page 225)
3. Cause, check method and remedy
Cause
(1)
Air passage blockage
(2)
Power supply environment
(3)
Inverter failure
(4)
Compressor failure
(5)
The model selection switches
(SW5-3 - 5-8) on the outdoor
unit are set incorrectly.
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page 337)
HWE1314A
Check method and remedy
Refer to the following page(s). [8-10-8 Checking the Fan Board Error Detection Cir-
cuit at No Load](page 341)
Refer to the following page(s). [8-10-9 Checking the Fan Inverter for Damage at No
Load](page 342)
Refer to the following page(s). [8-10-10 Checking the Fan Inverter for Damage with
Load](page 343)
Check the outdoor unit fan for proper operation.
If there is a problem with fan operation, check the fan motor. Refer to the following
page(s). [8-10-7 Checking the Fan Motor for Ground Fault and Coil Resistance
Problems](page 341)
Check the connector (CNTH) on the inverter board for proper connection.
If the problem persists after restart, replace the DCL.
Check method and remedy
Check that the heat sink cooling air passage is not blocked
Power supply voltage is 342 V or above.
Refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page
337)
Check that the compressor has not overheated during operation.
→ Check the refrigerant circuit (oil return section).
Refer to the following page(s). [8-10-3 Checking the Compressor for Ground
Fault and Coil Resistance Problems](page 339)
Check the setting for the model selection switch on the outdoor unit (Dipswitches
SW5-3 - 5-8 on the outdoor unit control board).
For switch settings, refer to the following page(s). [7-9-2 Error Code [7101]](page
286)
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