AirStage AO54FJ, Service Manual

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Trouble shooting 15
OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method:
PUMP DOWN ABNORMAL
(HIGH PRESSURE)
Detective Actuators: Detective Actuators:
Pressure SW1 (Hi pressure) OPEN
Detective details: Detective details:
During the pump – down operation, the pressure switch 1 becomes OFF
(More than 4.2Mpa was detected.)
Indicate or Display: Indicate or Display:
Indoor Unit : Operation LED Flash Flash , , Timer LED 3 Times Blink 3 Times Blink
Swing LED 3 Times Blink 3 Times Blink
Outdoor Unit : LED1 Flash Flash , , LED2 9 9 Time Time s s Blink Blink
ERROR CODE: E:32
Forecast of Cause Forecast of Cause:
1. 3 way valve was not open 4. Check for Outdoor Unit fan 7. Check Indoor unit Fan rotation
2. Check around Pressure SW 1 5. Check EEV1 operation
3. Amount of refrigerant 6. Check EV - KIT operation
Check Point 2 : Check Point 2 :
Check around Pressure SW 1 Check around Pressure SW 1
Check removed connection or cable cut off.
Check around Pressure SW 1 (PARTS INFORMATION 8) (PARTS INFORMATION 8)
Replace Pressure SW1 if it is defective, and check the
operating condition.
Check Point 5 : Check Outdoor unit EEV1 Check Point 5 : Check Outdoor unit EEV1
Check around Outdoor unit EEV1 (PARTS INFORMATION 10) (PARTS INFORMATION 10)
If Outdoor unit EEV1 is defective , replace it
Check Point 3 : Check Out of Refrigerant Check Point 3 : Check Out of Refrigerant
Check if the refrigerant amount is proper by measuring Gas pressure.
(Condensation temp., Refrigerant Pressure Chart) Refer Service manual 8-4-2
When the refrigerant is recharged, make sure to perform the vacuuming and charge
the originally specified amount.
Check Point 1 : Check valve opening Check Point 1 : Check valve opening
If the valve was closed, open it and check the condition.
Check Point 4 : Check Point 4 :
Check for Outdoor Unit fan Check for Outdoor Unit fan
Check the fan hand and check if it turns normal.
Check around Outdoor fan motor (Parts Information 6) (Parts Information 6)
Check if the air flow route of Outdoor unit fan is blocked.
If Outdoor fan motor is defective, replace it.
Check Point 6 : Check EV - KIT Check Point 6 : Check EV - KIT
Check around EV - KIT (PARTS INFORMATION 11) (PARTS INFORMATION 11)
Replace EV - KIT if it is defective.
Check Point 7 : Check Indoor unit Fan rotation Check Point 7 : Check Indoor unit Fan rotation
At the stop operation, turn the fan by hand and check if it rotes.
Check if it the filter clogged.
Check if the fan is loose from the shaft.
If either fan or bearing is defective, replace it.
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