Ol Activation (Compressor Overload) - Daikin FTXG20LV1BW Service Manual
Inverter pair wall mounted type l-series
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Also See for FTXG20LV1BW:
- Operation manual (404 pages) ,
- Installation manual (124 pages) ,
- Service manual (32 pages)
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Troubleshooting
4.12 OL Activation (Compressor Overload)
E5
Error Code
Method of Error
A compressor overload is detected through compressor OL.
Detection
Error Decision
Conditions
Supposed
Causes
73
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
Disconnection of discharge pipe thermistor
Defective discharge pipe thermistor
Disconnection of connector S40
Disconnection of 2 terminals of OL (Q1L)
Defective OL (Q1L)
Broken OL harness
Defective electronic expansion valve or coil
Defective four way valve or coil
Defective outdoor unit PCB
Refrigerant shortage
Water mixed in refrigerant
Defective stop valve
SiBE041401E
Service Diagnosis
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Troubleshooting
