66
Check of power supply
Outdoor unit does not operate.
Turn ON the power supply.
No
Yes
Yes
No
Yes
No
Yes
No
Replace the power board.
Check the main power supply circuit for proper connections.
Is there voltage of 208/230 V AC in the
power supply terminal block?
Is the output voltage from the noise
filter P.C. board 208/230 V AC?
Is the input voltage to the electronic control
P.C. board 294/325 V DC?
Check the power supply cable.
Replace the electronic control
P.C. board.
Replace the noise
filter P.C. board.
Is the input voltage to the power board
208/230 V AC?
Replace the reactor.
11-6. TROUBLESHOOTING FLOW
MXZ-2B20NA MXZ-3B24NA MXZ-3B30NA MXZ-4B36NA
Turn ON the power supply.
No
Yes
Yes
No
No
Yes
Check the main power supply circuit for proper connections.
Is there voltage of 208/230V AC in the
power supply terminal block?
Is the output voltage from the outdoor
power P.C. board 294/325V DC?
Check the power supply cable.
Replace the outdoor power P.C. board.
Turn OFF the power supply and recconnect the reactor
Is the reactor short-circuited?
Replace the reactor.
Replace the outdoor control P.C. board.
MXZ-5B42NA
OBH560G
Содержание MXZ-5B42NA
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