Inverter Communication Error - Fujitsu Airstage J-II Service Manual

Trouble shooting 16
OUTDOOR UNIT Error Method:

Inverter Communication Error

Detective Actuators:
Outdoor unit Main PCB
Outdoor unit Inverter PCB
1. Noise 2. Main to Inverter PCBs wiring connection defective
Forecast of Cause :
3. Main PCB defective 4. Inverter PCB defective
Check Point 1-1 : Turn the power
on again.
Error displayed again?
YES
Check Point 2 : Check the main to Inverter PCB wiring
Connector connection state check
Cable open check
OK
Check Point 3 : Check Main PCB
Chack Main PCB. (Refer to "Sarvise Parts Information )
OK
Check Point 4 : Replace Inverter PCB
Replace Inverter PCB.
Indicate or Display:
Outdoor Unit : E. 62. 6
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Error Code : 62
Detective details:
Communication not received from Inverter PCB for 10 seconds or more
Check Point 1-2 : Noise
NO
Check if ground is connection correctly or there are no related cables near the
power line.
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