Daikin RXM20R Service Manual page 78

4 | Components
Service manual
78
1 Disconnect the damper motor connector S400 from the indoor unit main PCB.
2 Measure the resistance between the following pins of the damper motor
connector.
Result: The measurements MUST be as shown in the table below.
Pins
1-2
1-13
1-14
1-15
2-13
2-14
2-15
13-14
13-15
14-15
Damper motor resistance
measurements are correct?
Yes
No
3 Remove the damper motor, see
4 Measure the resistance between the following pins of the connector on the
damper motor.
Result: The measurements MUST be as shown in the table below.
Pins
1-2
1-3
1-4
1-5
2-3
2-4
2-5
3-4
3-5
4-5
Damper motor resistance
measurements are correct?
Yes
Measured resistance (Ω)
139.5~160.5
279~321
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Continue with the next step.
"4.4.2 Repair procedures" [
Measured resistance (Ω)
139.5~160.5
279~321
Action
Replace the damper motor wiring
harness, see "4.4.2 Repair
4
procedures" [ 79].
RXM20~71R(9) + ARXM25~71R(9) + FTXM20~71R + ATXM25~50R +
4
79].
FVXM25~50A
Split New Perfera R32
ESIE20-11B – 2022.02