Cooling / Heating Operation Starts But Stops Immediately - Daikin SkyAir GQI-Eco Series Service Manual

Symptom-based Troubleshooting
2.4

Cooling / Heating Operation Starts but Stops Immediately

Applicable Model All models of SkyAir series
Supposed
Causes
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
Is the type
of remote controller wired
or wireless?
Wireless
Is the
operation lamp of
indoor unit signal receiving
part flashing?
Heating: Indoor
NO
unit
Cooling: Outdoor
unit
Does the fan rotate?
YES
Is the filter soiled?
NO
Is there any item
interfering airflow?
NO
Is the heat
exchanger soiled?
NO
Possible causes as follows:
* Refrigerant overcharge
* Mixing of air in refrigerant system
* Defective pressure switch
88
Overcharge of refrigerant
Air mixed in refrigerant system
Defective pressure switch
Defective magnetic switch for outdoor unit fan motor
Defective aux. relay for outdoor unit fan motor
Soiled heat exchanger of outdoor unit
There is an interfering item in airflow of outdoor unit.
Defective outdoor unit fan
Soiled air filter of indoor unit
Soiled heat exchanger of indoor unit
There is some interfering item in airflow of indoor unit.
Defective indoor unit fan
wired
lamp of remote controller
YES
NO
YES
YES
YES
Is the operation
YES
flashing?
NO
SiBE281013
Diagnose based on the error
code on remote controller
Defective fan motor. Check the
magnetic switch and auxiliary
switch for fan motor.
Cleaning
Remove the interfering item.
Cleaning of the heat exchanger
After vacuum drying, charge
correct amount of refrigerant.
Check the pressure switch.
Service Diagnosis