Daikin FTXA20A Service Manual page 94

2 | Components
To check the rectifier voltage of the main PCB
Service manual
94
1 Measure the continuity of the fuse. If no continuity is measured, the fuse has
blown.
b
a Fuse F1U
b Fuse F2U
Blown fuse on the main PCB?
Yes
No
Prerequisite: First perform all earlier main PCB checks, see
4
procedures" [ 91].
1 Turn ON the power of the unit.
2 Measure the voltage on the rectifier voltage check terminals (+ and –) on the
main PCB.
Result: The measured voltage MUST be approximately 324 V DC.
a
b
a + terminal
b – terminal
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.
a
Action
Replace the main PCB, see
4
procedures" [ 98].
Return to "Checking
of the main PCB and continue with the
next procedure.
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
"Repair
4
procedures" [ 91]
"Checking
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05