Daikin F-Series Service Manual page 270

SiBE12-713
Troubleshooting
Service Diagnosis
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Turn off the power
Reactor connection
check
Connection OK?
YES
Compressor connection
check
Connection OK?
YES
Reactor check
10Ω or less?
YES
Compressor check
Between all each terminal
10Ω or less?
YES
NO
NO
Disconnect the reactor from the outdoor
unit PCB and measure the resistance
value between reactor terminals with
tester.
NO
Disconnect the compressor relay harness
from the outdoor unit PCB and measure
the resistance value between the terminals
of the each 3 compressor with tester.
NO
Troubleshooting
Connect properly.
Connect properly.
Replace the reactor.
Replace the compressor or
the compressor relay
harness
Check the operation again
and if the error appears
again, replace the outdoor
unit PCB
(R5131)
259