Equipment Operates But Does Not Provide Cooling - Daikin GQI-Eco Series Service Manual

ESIE15-13B
2.6

Equipment Operates but does not Provide Cooling

All models of SkyAir series
Applicable Model
 Overcurrent relay (for compressor)
Supposed
Causes
 Compressor protection thermostat
 Defective thermistors or thermistor out of position
Service Diagnosis
Overcurrent relay may act due to the following reasons
Lower voltage of power supply
Excess level of high pressure
Insufficient size of power cable
Defective compressor
Compressor protection thermostat may act due to the following reasons
Internal leakage of four way valve (There is no difference between suction and discharge
temperature)
Insufficient compression of compressor
Incorrect refrigerant charge/leak
Defective electronic expansion valve
Insufficient circulation of refrigerant
Symptom-based Troubleshooting
107