Repair Procedures - Daikin Emura RXJ20A5V1B Service Manual

4.19.2 Repair procedures

To remove the thermistor
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08
Does the measured resistance of the
thermistor match with the
temperature determined resistance?
Yes
No
Indoor unit air (room) thermistor
As the indoor unit air (room) thermistor is located on the humidity sensor PCB,
replace the humidity sensor assembly, see
Other refrigerant side thermistors
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Locate the thermistor that needs to be removed.
2 Remove the thermistor as follows:
▪ For outdoor unit air (ambient) thermistor:
Remove the thermistor from the heat exchanger grille recess.
Remove the protection tube.
▪ For refrigerant piping thermistors:
- Cut the tie straps that fix the insulation and the thermistor wire.
- Cut and remove the insulation.
- Pull the clip that fixes the thermistor.
- Remove the thermistor from the thermistor holder.
a
a
Action
Correct the wiring between the
thermistor connector on the PCB and
the intermediate connector, see
"7.2 Wiring
Replace the specific thermistor, see
"4.19.2 Repair
"4.7.2 Repair
"4.14 Plate
c b
4 Components
|
4
diagram" [ 199].
4
procedures" [ 173].
4
procedures" [ 99].
4
work" [ 144].
Service manual
173