Daikin VRV S RXQ4/5ARV1 - Remote Controller Thermistor Abnormality

SiAF332111E Troubleshooting by Error Code
Part 6 Service Diagnosis 229
Note(s)
5.21 Remote Controller Thermistor Abnormality
Applicable
Models
All indoor unit models
Error Code CJ
Method of Error
Detection
Error detection is carried out by the temperature detected by the remote controller thermistor.
Error Decision
Conditions
When the remote controller thermistor becomes disconnected or shorted while the unit is
running.
 Error code is displayed but the system operates continuously.
Supposed
Causes
 Defective remote controller thermistor
 Defective remote controller PCB
Troubleshooting
1: How to delete “history of error codes”.
Press the ON/OFF button for 4 seconds and more while the error code is displayed in the
inspection mode.
Clear the error code history.
(While in inspection mode,
press and hold the ON/OFF
button for a period of 4
seconds or more.)
YES
Is CJ
displayed on the remote
controller?
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
NO
Replace the remote
controller.
External factor other than
equipment error.
(for example, noise etc.)