Remote Controller Thermistor Abnormality - Daikin REYQ-AATJA Service Manual

SiUS372201EA

3.31 Remote Controller Thermistor Abnormality

Applicable
All indoor unit models
Models
CJ
Error Code
Method of Error Error detection is carried out by the temperature detected by the remote controller thermistor.
Detection
Error Decision The remote controller thermistor becomes disconnected or shorted while the unit is running.
 Error code is displayed but the system operates continuously.
Conditions
Supposed  Defective remote controller thermistor
Causes  Defective remote controller PCB
Troubleshooting
Note(s)
1: How to delete the history of error codes.
Press the ON/OFF button for 4 seconds and more while the error code is displayed in the
inspection mode.
Part 6 Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Clear the error code history.
(∗1) (While in inspection mode,
press and hold the ON/OFF
button for a period of 4
seconds or more.)
Is CJ
displayed on the remote
controller?
YES
Is the field
setting 10 (20)-2
correct?
YES
Is a remote
controller with group control
being used?
YES
Is the field
setting 10 (20)-6 set
to 02?
YES
NO
NO
NO
NO
Troubleshooting by Error Code
External factor other than
equipment error.
(for example, noise etc.)
Correct the field setting.
Replace the remote
controller.
Set 10 (20)-6 to 02.
Replace the remote
controller.
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