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Components
Service manual
60
RXM20~71R(9) + ARXM25~71R(9) + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11B – 2022.02
3
Disconnect the Faston connectors from the compressor wire terminals U, V
and W.
INFORMATION
Note the position of the Faston connectors on the compressor wire terminals to
allow correct connection during installation.
V
U
W
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
Compressor
Winding resistance value
(at temperature of 20°C)
Class 20~35
M1C
1.89 Ω ± 5%
Class 42~60
M1C
1.114 Ω ± 5%
Class 71
M1C
0.274 Ω ± 5%
Compressor motor winding
measurements are correct?
Action
Yes
Continue with the next step.
No
Replace the compressor, see
5
Measure the continuity of the U, V and W wires between the compressor and
the PCB. If no continuity, correct as needed, see
226].
6
Connect the Faston connectors to the compressor wire terminals U, V and W