Mitsubishi Electric MXZ-2D33VA Service Manual page 153

Check of bus-bar voltage
MXZ-3D54VA/3D54VA2/3D68VA/4D72VA
MXZ-4D83VA/5D102VA
Blink 5 times
Replace the outdoor power
P.C. board.
Turn ON the power supply.
Start operation.
Confi rm LED1 indication lamp
on the outdoor control P.C.
board.
Blink 9 times
Replace the outdoor
control P.C. board.
Turn OFF the power supply before removing P.C. board.
MXZ-6D122VA
Blink 5 times
Replace the outdoor power
P.C. board.
Turn ON power supply. Start
operation.
Confi rm LED1 indication lamp
on the outdoor control P.C.
board.
Blink 9 times
Replace the outdoor control
P.C. board.
Turn OFF the power supply before removing P.C. board.
OBH626K
•Check the voltage of power supply.
•Confi rm outdoor unit failure mode
recall function. (Refer to 11-2.2.)
Confi rm LED1 indication lamp on the
outdoor control P.C. board.
Replace the outdoor control
P.C. board.
Normal
Lighting
•Check the voltage of power supply.
•Confi rm outdoor unit failure mode
recall function. (Refer to 11-2.2.)
Confi rm LED1 indication lamp on the
outdoor control P.C. board.
Normal
Lighting
Blink 6 times
Replace the outdoor control
P.C. board.
Turn ON the power supply.
Start operation.
Confi rm LED1 indication lamp
on the outdoor control P.C.
Lighting
board.
Replace the outdoor power
P.C. board.
Replace the outdoor control
P.C. board.
Turn ON power supply. Start
operation.
Confi rm LED1 indication lamp
on the outdoor control P.C.
Lighting
board.
Replace the outdoor power
P.C. board.
153
Lighting
Blink 9 times
Lighting
Blink 9 times