Daikin 4MXL-T Series User Manual

SiUS121827E Troubleshooting for RA Indoor Unit
Part 6 Service Diagnosis 173
Note
5.5 Front Panel Open/Close Fault
Applicable
Models
FTXR09/12/18TVJUW(S),
CTXG09/12/18QVJUW(S)
Error Code C7
Error Decision
Conditions
 If the error repeats, the system is shut down.
Supposed
Causes
 Defective reduction motor
 Malfunction or deterioration of the front panel mechanism
 Defective limit switch
Troubleshooting
You cannot operate the unit by the remote controller when the front panel mechanism breaks down.
<To the dealers: temporary measure before repair>
1. Turn off the power.
2. Remove the front panel.
3. Turn on the power.
(Wait until the initialization finishes.)
Operate the unit by the indoor unit ON/OFF button.
YES
YES
YES
YES
NO
NO
NO
NO
Replace the harness and
reduction motor.
Replace the assembly of the
front panel mechanism.
Check the movement of the
right and left separately by
hand.
Replace the assembly of the
front panel mechanism.
It is supposed such as
deformation of the panel or
stuffed dust.
Find out the cause.
Replace the limit switch.
(R17249)
Caution
Does the front
panel move?
Does the front
panel mechanism
move?
Does the front
panel open/close fully?
Restart. Does the
error code reappear?
Restart and check the
movement.
Remove the front panel and
check the movement.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.

Daikin 4MXL-T Series Specifications

General

Brand	Daikin
Model	4MXL-T Series
Category	Air Conditioner
Language	English