Mitsubishi Electric Mr.Slim PUZ-HA42NKA Service Manual page 70

ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
OCH567
:
1
Description Detection point
Normal
Overvoltage error Power circuit board
Undervoltage error Controller circuit board
Input current sensor error
Controller circuit board
L1 or L2-phase open error
Abnormal power
Power circuit board
synchronous signal
ACTM error Check CNAF wiring.
Undervoltage Defective ACTM/ P.B
Display examples for multiple errors:
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
L1 phase open error (04) + ACTM error (20) = 24
:
15
:
05
Display
00
01
02
04
08
20
:
: