Equipment Operates But Does Not Provide Cooling - Daikin Sky Air B-Series R-410A Service Manual

Si21-205
1.5

Equipment operates but does not provide cooling.

Applicable Model All models of SkyAir series
Error Detection
Method
Error Generating
Condition
Possible Cause
Troubleshooting
Overcurrent relay (for compressor)
Compressor protection thermostat
Overcurrent relay may act due to the following reasons
Lower voltage of power supply
Excess level of high pressure
Insufficient size of power cable
Malfunction of 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
Faulty expansion valve
Insufficient circulation of refrigerant
Troubleshooting Based on Equipment Condition
125