Mitsubishi Electric MXZ-2HA40VF-E1 Service Manual page 67

OPERATING PROCEDURE
2. Removing the inverter assembly and the inverter
P.C. board
(1) Remove the service panel, the top panel and the cabinet
(Refer to 1).
(2) Disconnect the power supply and indoor/outdoor connect-
ing wire and remove the back panel (Refer to section 1).
(3) Disconnect all connectors and lead wires on the inverter
P.C. board.
(4) Remove the compressor connector (CNMC).
(5) Remove the screws fixing the heat sink support and the
separator.
(6) Remove the screws of the terminal block support and the
back panel. (Photo 2)
(7) Remove the inverter assembly.
(8) Remove the screw of the earth wire and screws of the ter-
minal block support.
(9) Remove the hooks of the heat sink support and remove
the heat sink support from the P.C. board support.
(10) Remove the screw fixing the inverter P.C. board and
remove the inverter P.C. board from the P.C. board sup-
port.
3. Removing the R.V. coil
(1) Remove the service panel, the top panel and the cabinet
(Refer to section 1).
(2) Disconnect the power supply and indoor/outdoor connect-
ing wire and remove the back panel (Refer to section 1).
(3) Remove the inverter assembly (Refer to section 2).
(4) Remove the R.V. coil.
4. Removing the discharge temperature thermistor,
defrost thermistor and outdoor heat exchanger
temperature thermistor
(1) Remove the service panel, the top panel and the cabinet
(Refer to section 1).
(2) Disconnect the power supply and indoor/outdoor connect-
ing wire and remove the back panel (Refer to section 1).
(3) Remove the inverter assembly (Refer to section 2).
(4) Pull out the discharge temperature thermistor from its
holder.
(5) Pull out the defrost thermistor from its holder (Photo 7).
(6) Pull out the outdoor heat exchanger temperature thermis-
tor from its holder (Photo 7).
OBH828B
Photo 4
Screws of the heat sink
support and the separator
Photo 5
Compressor
connector
Reactor
(ACL2)
P.C. board
Hooks of the
support
heat sink
support
Photo 6
Discharge temperature thermistor (RT62)
67
PHOTOS
Inverter
assembly
Screws of the terminal
block support
Screw of the earth wire
Screw of the inverter
P.C. board
Reactor (ACL)
R.V. coil