Daikin 2MXS40H2V1B Service Manual page 171

SiBE121123_A
Troubleshooting
Check No.01
Refer to P.206
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Check the air passage.
Is there any short circuit?
NO
Check the air filter.
Dirty?
NO
Check the dust accumulation on
the indoor heat exchanger.
Dirty?
NO
Check No. 01
Check the indoor heat exchanger
thermistor.
As described in the
thermistor characteristic
chart?
YES
YES
YES
YES
NO
Troubleshooting for RA Indoor Unit
Provide sufficient air passage.
Clean the air filter.
Clean the indoor heat
exchanger.
Replace the thermistor.
Replace the indoor unit PCB.
(R15715)
160