Removing Inverter Assembly, Inverter P.c. Board And Relay P.c. Board - Mitsubishi Electric MUZ-FH09NA Service Manual

OPERATING PROCEDURE
2. Removing the inverter assembly, inverter P.C. board
and relay P.C. board
(1) Remove the cabinet and panels. (Refer to 1.)
(2) Disconnect the lead wire to the reactor and the following con-
nectors:
<Inverter P.C. board>
CN602 (R.V. coil)
CN931, CN932 (Fan motor)
CN671 (Defrost thermistor, discharge temperature thermistor
and outdoor heat exchanger temperature thermistor)
CN672 (Ambient temperature thermistor)
CN724 (LEV)
CN601 (Defrost heater and heater protector) (MUZ-FH15NAH)
(3) Remove the compressor connector.
(4) Remove the screws fixing the relay panel.
(5) Remove the relay panel.
(6) Remove the ground wires and the lead wires of the inverter
P.C. board.
(7) Remove the screws of the P.B. support.
(8) Remove the inverter P.C. board from the P.B. support.
3. Removing R.V. coil
(1) Remove the cabinet and panels. (Refer to 1.)
(2) Disconnect the following connector:
<Inverter P.C. board>
CN602 (R.V. coil)
(3) Remove the R.V. coil.
OBH584A
Photo 5
Inverter P.C.
board
Screws of
the P.B.
support
Screw of the
relay panel
Photo 6
Screw of the
R.V. coil
49
PHOTOS
Screw of the
relay panel
Screws of the
P.B. support
Ground wires
Screw of the
relay panel
Brazed parts of
4-way valve