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Troubleshooting for SA Indoor Unit - FFQ Series
SiBE12-816_D
229
Service Diagnosis
Troubleshooting
Is it connected properly?
Is it normal?
Is the contact OK?
Check the thermistor
resistance.
Check the connector
connection.
Check the contact between
the thermistor and the indoor
unit PCB.
NO
NO
NO
YES
YES
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Correct the connection.
Replace the thermistor.
Correct the contact.
(R11299)
Replace the indoor unit PCB.
C4
: Indoor heat exchanger thermistor
(R2T).
C9
: Room temperature thermistor (R1T).