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Components
Service manual
70
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
3
Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
4
Wrap a wet rag around the high pressure switch and any other components
near the high pressure switch and solder the high pressure switch pipe to the
refrigerant pipe.
a
c
b
b
a
High pressure switch
b
Faston connector
c
High pressure switch pipe
CAUTION
Overheating the pressure switch will damage or destroy it.
5
After soldering is done, stop the nitrogen supply after the component has
cooled‑down.
6
Connect the Faston connectors to the high pressure switch.
7
8
Add
refrigerant
to
the
refrigerant
circuit,
see
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.
2.6 Humidity sensor
2.6.1 Checking procedures
1
As there is no specific check procedure for this component, first perform a
check of the indoor unit main PCB to check if the humidity sensor needs to be
replaced. See
To perform a power check of the humidity sensor
Prerequisite:
Stop the unit operation via the user interface.