AirStage AO54FJ, Service Manual

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PARTS PARTS INFORMATION 11 INFORMATION 11
EV KIT
Check Point 1: Check Circuit connection Check Point 1: Check Circuit connection
Check the connection of connector CN14
Check Point 2: Check Solenoid Coil Check Point 2: Check Solenoid Coil
Remove CN14 and check the resistance value of coil in
the motor
If the resistance value is abnormal, replace Control PCB
If there is a temperature difference between Strainer terminals, there is a possibility of clogging .Check the temperature
difference.
And check the movement of inside dirty by changing the operation mode from Cooling to Heating, or from Heating to Cooling.
Option Parts. UTR-EV2, UTR-EV3
140 BROWN BLUE
BROWN YELLOW
300 ORANGE –
–
–
–
–
–
WHITE
140 RED ORANGE
RED WHITE
300 BLUE YELLOW
Resistance Value Read Wire
Pipe (In)
Pipe (Out)
Hi TEMP.
Normal TEMP.
CLOSE
Example : Hot GUS
Pipe (In)
Pipe (Out)
Hi TEMP.
Hi TEMP.
OPEN
Example : Hot GUS
Check Point 6: Check Point 6:
Check Operation of solenoid valve, check Open / Close operation Check Operation of solenoid valve, check Open / Close operation by temperature difference by temperature difference
Pipe (In) Pipe (Out)
Check Point 7: Check Point 7:
Check clogging of strainer Check clogging of strainer
Pipe (In) Pipe (Out)
Check Point 5: Check the sound when power is turned ON Check Point 5: Check the sound when power is turned ON
Check the magnetized sound by the initial operation when power is turned on.
If its sound does not appear, replace Control PCB.
Check Point 4: Check voltage of Control PCB Check Point 4: Check voltage of Control PCB
Remove CN17, and check DC+12V Input voltage.
If there is 0V, replace main PWB.
Check Point 3: Initialize of Positioning Check Point 3: Initialize of Positioning
Turn off the power source of PCB of the outdoor unit to
initialize the EEV for several times.
CN14
06-53