Daikin FTXA20A - Compressor; Checking Procedures

2 | Components
Service manual
46
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
c a b
a Screw
b 4‑way valve coil
c 4‑way valve body
2 Install and tighten the screw to fix the 4‑way valve coil.
3 Route the 4‑way valve coil harness towards the appropriate PCB.
4 Connect the 4-way valve connector to the appropriate PCB.
WARNING
When reconnecting a connector to the PCB, make sure to connect it on the correct
location and do NOT apply force, as this may damage the connector or connector
pins of the PCB.
5 Fix the 4‑way valve coil harness using new tie straps.
Is the problem solved? Action
Yes No further actions required.
No Return to the troubleshooting of the
specific error and continue with the
next procedure.
2.2 Compressor
2.2.1 Checking procedures
INFORMATION
It is recommended to perform the checks in the listed order.
To perform an auditive check of the compressor
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 Open the compressor insulation.
2 Turn ON the power using the respective circuit breaker.
3 Start the unit operation via the user interface.
4 Wait for - or create condition to operate the compressor.
5 Listen to the compressor when it tries to operate. Judge if a mechanical lock is
present.