Indoor Unit Fan Motor; Checking Procedures - Daikin RXTA30B2V1B Service Manual

To install the humidity sensor wiring harness

4.8 Indoor unit fan motor

4.8.1 Checking procedures

To perform a mechanical check of the DC fan motor assembly
RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+FTXTM30+40R2V1B+FTXTP25+35M5V1B+ATXTP25+35M5V1B
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02
5 To install the humidity sensor wiring harness, see
4
procedures" [ 87].
1 Connect the wiring harness connector to the indoor unit main PCB.
WARNING
When reconnecting a connector to the PCB, make sure to connect it on the correct
location and do NOT apply force, as this may damage the connector or connector
pins of the PCB.
2 Route the wiring harness through the appropriate harness retainers towards
the humidity sensor (PCB).
3 Connect the wiring harness to the humidity sensor (PCB).
4 Fix the wiring harness using new tie straps (if needed).
Is the problem solved?
Yes
No
INFORMATION
It is recommended to perform the checks in the listed order.
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Check the fan for damage, deformations and cracks. Replace the fan as
needed.
2 Check that the fan is correctly installed on the DC fan motor. Correct as
needed.
3 Manually rotate the fan and check the friction of the DC fan motor shaft
bearing.
Is the DC fan motor shaft friction
normal?
Yes
No
4
|
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
"4.17 Plate work" [
Action
Perform an electrical check of the DC
fan motor assembly, see
"4.8.1 Checking procedures" [
Replace the DC fan motor assembly, see
"4.8.2 Repair procedures" [
Components
"4.7.2 Repair
4
144].
4
89].
4
90].
Service manual
89