AirStage AO54FJ, Руководство по обслуживанию

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Trouble shooting 14
OUTDOOR UNIT OUTDOOR UNIT Error Method: Error Method:
LOW PRESSURE ABNORMAL
Detective Actuators: Detective Actuators:
Pressure SW2 (Lo pressure) OPEN
Detective details: Detective details:
Compressor is stopped when pressure SW2 is detected OFF with 3
minutes of starting compressor after the power is turned on.(Low
pressure protection) If it becomes 2 times or more, the compressor is
stopped, error is indicated, and information is output to the network.
Forecast of Cause Forecast of Cause:
1. 3 way valve was not open 4. Check EEV1 operation 7. Outdoor TEMP. thermistor
2. Leak of refrigerant 5. Check EV - KIT operation 8. Indoor unit Fan relation
3. Check around Pressure SW2 6. Check for Outdoor Unit fan
Check Point 2 : Check Out of Gas or Gas Leak of Refrigerant Check Point 2 : Check Out of Gas or Gas Leak of Refrigerant
Conduct Leak Check at Piping connection.
Check if the refrigerant amount is proper by measuring Gas pressure.
(Condensation temp., Refrigerant Pressure Chart) Refer Service manual 8-4-2
Check Leak portion.
SEALING TEST
Charge the piping with nitrogen to the sealing test pressure (4.15Mpa).
After 24 hours, check that pressure has not fallen.
Note: When the ambient temperature changes by 5 deg, the test pressure changes about 0.07Mpa
When the refrigerant is recharged, make sure to perform the vacuuming and charge the originally specified amount.
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 8 8 Time Time s s Blink Blink
ERROR CODE: E:32
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 3 : Check Point 3 :
Check around Pressure SW 2 Check around Pressure SW 2
Check removed connection or cable cut off.
Check around Pressure SW 2 (PARTS INFORMATION 8) (PARTS INFORMATION 8)
Replace Pressure SW2 if it is defective, and check the
operating condition.
Check Point 5 : Check EV - KIT Check Point 5 : Check EV - KIT
Check around EV - KIT (PARTS INFORMATION 11) (PARTS INFORMATION 11)
Replace EV - KIT if it is defective.
Check Point 6 : Check Point 6 :
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 8 : Check Point 8 :
Error detection by defective Error detection by defective
mounting thermistor or cut off mounting thermistor or cut off
Thermistor came off the holder
Check if the cable is caught in etc,
Check the thermistor characteristics Trouble shooting 27 Trouble shooting 27
If the thermistor is abnormal, replace the thermistor
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.
Check Point 4 : Check Outdoor unit EEV1 Check Point 4 : Check Outdoor unit EEV1
Check around Outdoor unit EEV1 (PARTS INFORMATION 10) (PARTS INFORMATION 10)
If Outdoor unit EEV1 is defective , replace it
06-18