Daikin FTXA25AW - Page 97

2 | Components
Service manual
97
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
VDC Com Ref VDC Com Ref
DC– W 0.501V W DC– O.L
Power module IPM2 for fan motor
1 Disconnect the fan motor connector from the main PCB.
2 Check the power module IPM2 in reference with the image and the table
below.
d
e
c
b
a
a U
b V
c W
d DC+
e DC–
INFORMATION
When measuring on the front of the main PCB, make sure to locally remove the
protective varnish with the test leads of the multi meter.
VDC Com Ref VDC Com Ref
U DC+ 0.475V DC+ U O.L
V DC+ 0.475V DC+ V O.L
W DC+ 0.475V DC+ W O.L
DC– U 0.475V U DC– O.L
DC– V 0.475V V DC– O.L
DC– W 0.475V W DC– O.L
Are the test results OK? Action
Yes Power modules are OK. Return to
"Checking procedures"[491] of the
main PCB and continue with the next
procedure.