Cooling/Heating Operation Starts But Stops Immediately - Daikin SkyAir Super Inverter 70 D Series Service Manual

SiE25-110
3.4 Cooling/Heating Operation Starts but Stops
Immediately.
Applicable Model
All models of SkyAir series
Error Detection
Method
Error Generating
Condition
Possible Cause
Troubleshooting
Troubleshooting
Excess charge of refrigerant
Air intrudes into refrigerant system
Faulty pressure switch
Faulty magnetic switch for outdoor unit fan motor
Faulty aux. relay for outdoor unit fan motor
Soiled heat exchanger of outdoor unit
There is an interfering item in air flow of outdoor unit
Malfunction of 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
Malfunction of indoor unit fan
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the type of
remote controller wired or
wireless?
Wireless
Is the
operation lamp
of indoor unit photo-sensing
section flashing?
Heating: Indoor unit NO
[ ]
Cooling: Outdoor unit
Does the fan rotate?
YES
Is the filter soiled?
NO
Is there any item
disturbing airflow?
NO
Is the heat
exchanger soiled?
NO
Possible causes as follows:
∗ Refrigerant overcharge
∗ Mixing of air in refrigerant
system
∗ Faulty pressure switch
Troubleshooting Based on Equipment Condition
Is
wired the operation
lamp of remote controller
flashing?
YES
NO
YES
YES
YES
YES
Diagnose based on the
error code on remote
controller
Malfunction of fan motor
Check the magnetic switch
and aux. switch for fan
motor
Cleaning
Remove the disturbing
item
Cleaning of the heat
exchanger
After vacuum drying,
charge correct amount of
refrigerant
Check the pressure switch
(S1992)
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