Trouble shooting 21
OUTDOOR UNIT Error Method:
Indicate or Display:
Detective Actuators: Detective details:
Forecast of Cause :
Compressor temperature error
Outdoor unit Main PCB
Compressor temperature thermistor
02-23
When the compressor temperature becomes 112°C or more.
Check Point 1 : Check if gas valve is open
If it is not open, open it and check the operation.
Check Point 3 : Check if gas leak or less gas
Measure Gas pressure, if there is a leak, correct it.
>> If recharging refrigerant, make sure to perform
vacuuming and recharge the specified amount.
Check Point 4 : Check Compressor temperature thermistor
Is it on the holder?
Is there a cable pinched?
>> Check characteristics of thermistor (Refer to Trouble shooting 10),
If defective, replace the Compressor temperature thermistor.
Check Point 2 : Check EEV and Strainer
Are EEV and Strainer open?
(Refer to PARTS INFORMATION 3)
>> If EEV or Strainer is defective, replace it.
OK
OK
1. Valve is close 2. EEV failure 3. Gas leak, less 4. Compressor thermistor failure
5. Outdoor fan failure 6. Outdoor heat exchanger clogged
< Cooling mode >
< Heating mode >
Check Point 1 : Check if liquid valve is open
If it is not open, open it and check the operation.
Check Point 2 : Check EEV and Strainer
Are EEV and Strainer open?
(Refer to PARTS INFORMATION 3)
>> If EEV or Strainer is defective, replace it.
MPa MPa
Refer to error code table.
Check Point 7 : Replace Main PCB
If Check Point 1 ~ 6 do not improve
the symptom, replace Main PCB.
Check Point 5 : Check Outdoor heat exchanger
Is there any obstructing the air flow route?
Is there any clogging of outdoor unit heat exchanger?
>> If clogged, clear the clog.
Check Point 6 : Check Outdoor fan
Check Outdoor fan motor. (Refer to Trouble shooting 14)
>> If the Fan Motor is failure, replace it.
OK
OK
OK
OK
OK
OK
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