Troubleshooting for RA Indoor Unit - F(C)TXG, FTXS, ATXS, FVXS, FLK(X)S, FDK(X)S Series SiBE121021_C
310 Service Diagnosis
Troubleshooting
Check No.01
Refer to P.362
NO
NO
NO
Check No. 01
Check the indoor heat exchanger
thermistor.
Is it very dirty?
YES
YES
(R14402)
YES
YES
NO
Caution
Provide sufficient air passage.
Clean the air filter.
Clean the indoor heat
exchanger.
Replace the indoor unit PCB.
Replace the thermistor.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Check the air passage.
Is there any short circuit?
Check the air filter.
Is it very dirty?
Check the dust accumulation on
the indoor heat exchanger.
Does it conform
to the thermistor
characteristic
chart?
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