Mitsubishi Electric MXZ-2C30VA Service Manual page 96

MXZ-6C120/6C122VA
Check the main power supply circuit for proper connections.
Turn ON the power supply.
Is there voltage of 230V AC in the
power supply terminal block?
Yes
Is the output voltage from the power
board (MXZ-6C120VA)/outdoor power
P.C. board (MXZ-6C122VA) 325V DC?
No
Turn OFF the power supply and recconnect the reactor
Is the reactor short-circuited?
Yes
Replace the power board(MXZ-6C120
VA)/outdoor power P.C. board (MXZ-
6C122VA).
OBH584E
No
Check the power supply cable.
Replace the control P.C. board(MXZ
Yes
-6C120VA)/outdoor control P.C. board
(MXZ-6C122VA).
No
Replace the reactor.
96