Specifications

SiBE04-624 Troubleshooting
Service Diagnosis 159
2.13 Humidity Sensor Fault
Remote
Controller Display
CC
Method of
Malfunction
Detection
Sensor faulty is detected by input value.
Malfunction
Decision
Conditions
When the input from a temperature sensor is 4.96 V or more or 0.04 V or less*
Supposed
Causes

Improper connector connection

Defective indoor control PCB

Defective humidity sensor PCB
Troubleshooting
Check No.27
Refer to P.212
Reconnect properly.
Replace the humidity
sensor PCB (A4P).
Replace the indoor control
PCB (A1P).
Is it OK?
(R3414)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Check connector for proper
connection
Is it OK?
NO
NO
YES
YES
Check No. 27
Check input voltage of humidity
sensor
CC : Humidity sensor
* Connect the connector again for
ensuring the connection.