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Troubleshooting 37 - Outdoor Unit Error Method: Reverse Phase/Missing Phase Error - Fujitsu Airstage V series Service Manual

Multi air conditioning system for buildings
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Trouble shooting 37
OUTDOOR UNIT Error Method:
Reverse Phase/Missing Phase Error
Detective Actuators:
Outdoor Unit Controller PCB circuit
Forecast of Cause : 1. Connection failure 2. Controller PCB failure
3. Filter PCB failure or Inverter PCB failure (In case of Master Unit)
Check Point 1 : Check connection failure
p Check if the terminal connection is loose.
p Check if cable is cut open.
>> If connection is repaired, turn on the power again and
make sure it operates normally.
OK
Check Point 2 : Replace Controller PCB
p Which has an error, Main Unit? Or Slave Unit?
Master
Unit
p Replace Controller PCB and set up the original address.
p Check Inverter PCB and Filter PCB. (PARTS INFORMATION 4)
If no defect is found, replace Controller PCB and set up the original address.
Indicate or Display:
Outdoor Unit : LED1 Flash, LED5
Indoor Unit : Operation LED Flash, Timer LED 3 Times Blink
ERROR CODE : E : 32
Detective details:
When Reverse Protection Circuit (Relay) detects the reverse phase input, or a
normal input was not conducted.
Slave
Unit
1 Time Blink
Swing LED 3 Times Blink
06-47

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