Daikin RXM20R Service Manual page 73

RXM20~71R(9) + ARXM25~71R(9) + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11B – 2022.02
A
A Class 42~71 unit
a Compressor wire terminals cover
2 Remove the compressor thermal protection with bracket from the
compressor.
b
a
a Compressor thermal protector
b Faston connector
c Bracket
3 If in doubt, measure the temperature of the compressor thermal protection.
Result: The temperature MUST be below 85°C.
4 Disconnect the Faston connectors from the compressor thermal protection.
INFORMATION
Make sure that the wiring between the compressor thermal protector and the
connector on the PCB is properly connected and NOT damaged (check continuity),
see "7.2 Wiring
5 Using a hot air gun, carefully heat the compressor thermal protection to
slightly above 123°C for Class 20~60 units or 133°C for Class 71 units
(compressor thermal protection trips at 117~123°C for Class 20~60 units and
127~133°C for Class 71 units).
6 Measure the resistance on the compressor thermal protector.
Result: The contact MUST be open (measured resistance = OL).
a
c
4
diagram" [ 226].
4 Components
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Service manual
73