Daikin FTXA20A, Service Manual

Page: 144 / 192

2 | Components
Service manual
144
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
Pins Measured resistance (Ω)
2-3 470
2-4
2-5
3-4
3-5
4-5
Swing raster motor resistance
measurements are correct? Action
Yes Return to the troubleshooting of the
specific error and continue with the
next procedure.
No Replace the swing raster motor, see
"2.18.2 Repair procedures" [
4
144].
2.18.2 Repair procedures
INFORMATION
To replace the motor, the complete gearcase assembly MUST be replaced.
As the swing raster motor is integrated in the secondary swing flap motor gearcase
assembly, see
"2.17.2 Secondary swing flap motor" [
4
140] for the repair
procedures.
2.19 Thermistors
2.19.1 Refrigerant side thermistors
Checking procedures
INFORMATION
It is recommended to perform the checks in the listed order.
To perform a mechanical check of the specific thermistor
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.14 Plate work" [
4
120].
1 Locate the thermistor and remove the insulation if needed. Check that the
thermistor is correctly installed and that there is thermal contact between the
thermistor and the piping or ambient (for air thermistor).