SiUS041829E Troubleshooting
Part 6 Service Diagnosis 97
Troubleshooting
Check No.01 Refer to P.112
Check No.12 Refer to P.114
Check No.17 Refer to P.118
Check No.18 Refer to P.119
Check No.19 Refer to P.119
When replacing the defective thermistor(s), replace the thermistor as ASSY.
(R20418)
Caution
Replace the outdoor fan
motor.
Reconnect the connector or
fan motor lead wires.
Replace the stop valve.
Replace the outdoor heat
exchanger thermistor.
Replace the outdoor unit
PCB (main PCB).
Replace the electronic
expansion valve or the coil.
Replace the outdoor unit
PCB (main PCB).
Change the installation
location or direction.
Clean the outdoor heat
exchanger.
Check the installation space.
NG
OK
OK
NG
NG
OK
OK
OK
NG
NG
Check No. 19
Check the outdoor fan.
Check No. 18
Check the discharge
pressure.
Check No. 12
Check the electronic
expansion valve.
Check No. 01
Check the outdoor heat
exchanger thermistor.
Check No. 17
Check the installation
condition.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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