Connect the reactor
properly.
(R15891)
NO
YES
Connect the compressor
properly.
NO
YES
Replace the reactor.
NO
YES
Replace the compressor or
the compressor relay
harness.
Start the operation again
and if the error appears
again, replace the outdoor
unit PCB.
NO
YES
Disconnect the reactor from the outdoor
unit PCB and measure the resistance
value between reactor terminals with
tester.
Disconnect the compressor relay harness
from the outdoor unit PCB and measure
the resistance value between each
terminal with a tester.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Turn off the power.
Reactor connection check
Connection OK?
Compressor connection check
Connection OK?
Reactor check
10 Ω or less?
Compressor check
10 Ω or less
between each
terminal?
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