Fujitsu AO G09KBTB Series Service Instruction page 23

Trouble shooting 21
OUTDOOR UNIT Error Method:
Trip terminal L error
Detective Actuators:
Outdoor unit Main PCB
Forecast of Cause:
1. Outdoor unit Main PCB failure
Check Point 1 : Replace Main PCB
Replace Outdoor unit Main PCB.
Indicate or Display:
Error code : 65
Detective details:
When the signal from FO terminal of IPM is "L"(=0V)
while the compressor stops.
02-22
Outdoor unit : No indication