Daikin Perfera RXM R Series Service Manual page 135

To check the fuse of the main PCB
To check the rectifier voltage of the main PCB
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
Prerequisite: First perform all earlier main PCB checks, see
4
procedures" [ 132].
1 Measure the continuity of the fuse. If no continuity is measured, the fuse has
blown.
c a
a Fuse F1U
b Fuse F2U
c Fuse F3U
Blown fuse on the main PCB?
Yes
No
Prerequisite: First perform all earlier main PCB checks, see
procedures" [ 4 132].
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 300~350 V DC.
a
a + terminal
b – terminal
Action
Replace the main PCB, see
procedures" [
Return to
procedures" [
and continue with the next procedure.
b
3 Components
|
"Checking
b
"Repair
4
138].
"Checking
4
132] of the main PCB
"Checking
Service manual
135