Daikin RXTA30B2V1B Service Manual page 80

4 | Components
Service manual
80
1 In the switch box, disconnect the front panel motor wiring harness from the
indoor unit main PCB and from the switch box.
b
a Connector on indoor unit main PCB
b Connector on switch box
2 Measure the continuity of all wires of the wiring harness.
Is the wiring harness OK?
Yes
No
3 On the front grille (removed from the indoor unit), measure the resistance
between the following pins of the front panel motor connector.
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
Front panel motor resistance
measurements are correct?
Yes
No
a
Action
Continue with the next step.
Replace the front panel motor wiring
harness, see "4.5.2 Repair
4
procedures" [ 81].
Measured resistance (Ω)
204.6~235.4
378.4~501.6
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure..
Replace the front panel motor, see
"4.5.2 Repair procedures" [
RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+FTXTM30+40R2V1B+FTXTP25+35M5V1B+ATXTP25+35M5V1B
4
81].
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02