Mitsubishi Electric MUZ-FE09NA Service Manual page 40

OPERATING PROCEDURE
4. Removing the discharge temperature thermistor,
defrost thermistor, outdoor heat exchanger tempera-
ture thermistor and ambient temperature thermistor.
(1) Remove the cabinet and panels. (Refer to section 1.)
(2) Disconnect the lead wire to the reactor and the following
connectors:
<Inverter P.C. board>
CN641 (Defrost thermistor and discharge temperature ther-
mistor)
CN643 (Ambient temperature thermistor)
CN644 (Outdoor heat exchanger temperature thermistor)
(3) Pull out the discharge temperature thermistor from its hold-
er. (Photo 6)
(4) Pull out the defrost thermistor from its holder.
(5) Pull out the outdoor heat exchanger temperature thermistor
from its holder.
(6) Pull out the ambient temperature thermistor from its holder.
5. Removing outdoor fan motor
(1) Remove the cabinet and panels. (Refer to section 1.)
(2) Disconnect the connectors for outdoor fan motor.
(3) Remove the propeller nut.
(4) Remove the propeller.
(5) Remove the screws fixing the fan motor.
(6) Remove the fan motor.
6. Removing the compressor and 4-way valve
(1) Remove the cabinet and panels. (Refer to section 1.)
(2) Remove the inverter assembly. (Refer to section 2.)
(3) Recover gas from the refrigerant circuit.
NOTE:
Recover gas from the pipes until the pressure
gauge shows 0 PSIG.
(4) Detach the brazed part of the suction and the discharge
pipes connected with compressor.
(5) Remove the nuts of compressor legs.
(6) Remove the compressor.
(7) Detach the brazed part of pipes connected with 4-way
valve.
OBH543G
PHOTOS/FIGURES
Photo 7
Photo 8
Screws of the outdoor fan motor
Propeller
Photo 9
40
Outdoor heat
exchanger tempera-
ture thermistor
Defrost thermistor
Propeller nut
Brazed parts of 4-way valve