SiUS30-604 Troubleshooting by Indication on the Remote Controller
Troubleshooting 171
2.12 “CJ” Indoor Unit: Malfunction of Thermostat Sensor in
Remote Controller
Remote
Controller
Display
CJ
Applicable
Models
AII indoor unit models
Method of
Malfunction
Detection
Malfunction detection is carried out by temperature detected by remote controller air temperature
thermistor. (Note1)
Malfunction
Decision
Conditions
When the remote controller air temperature thermistor becomes disconnected or shorted while the
unit is running.
Supposed
Causes
Defect of remote controller thermistor
Defect of remote controller PC board
Troubleshooting
Note: In case of remote controller thermistor malfunction, unit is still operable by suction air thermistor on
indoor unit.
∗
2: Refer to thermistor resistance / temperature characteristics table on P278.
Turn power supply OFF, then
power ON again.
Is “CJ”
displayed on the remote
controller?
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace remote controller.
External factor other than
equipment malfunction.
(for example, noise etc.)
(V2787)
NO
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