Daikin Emura RXJ20A5V1B Service Manual page 65

RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08
U Wire terminal U
V Wire terminal V
W Wire terminal W
CAUTION
Before measuring the compressor motor windings resistance, measure the
resistance of the multimeter probes by holding the probes against each other. If the
measured resistance is NOT 0 Ώ, this value MUST be subtracted from the measured
winding resistance.
4 Measure the resistance between the compressor motor windings U-V, V-W
and U-W.
Result: All measurements MUST be approximately the same.
Unit
Class 20~35
Class 42+50
Compressor motor winding
measurements are correct?
Yes
No
5 Measure the continuity of the U, V and W wires between the compressor and
the PCB. If no continuity, correct as needed, see
6 Connect the Faston connectors to the compressor wire terminals U, V and W
V U
W
Compressor
M1C
M1C
Action
Continue with the next step.
Replace the compressor, see
"4.2.2 Repair
4 Components
|
Winding resistance value
(at temperature of 20°C)
1.89 Ω ± 5%
1.114 Ω ± 5%
4
procedures" [ 68].
4
"7.2 Wiring diagram" [
Service manual
199].
65