Mitsubishi Electric PUHZ-P200YHA Service Manual page 91

OPERATING PROCEDURE
4. Removing the thermistor <Outdoor 2-phase pipe> (TH6)
(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Disconnect the connector TH7/6 (red), on the controller
circuit board in the electrical parts box.
(4) Loosen the 2 wire clamps on top of the electrical parts box.
(5) Pull out the thermistor <Outdoor 2-phase pipe> (TH6) from
the sensor holder.
Note: In case of replacing thermistor <Outdoor 2-phase
pipe> (TH6), replace it together with thermistor
<Outdoor> (TH7) since they are combined together.
Refer to No.6 below to remove thermistor <Outdoor>.
5. Removing the thermistor <Outdoor> (TH7)
(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Disconnect the connector TH7/6 (red) on the controller
circuit board in the electrical parts box.
(4) Loosen the 2 wire clamps on top of the electrical parts box.
(See Photo 4)
(5) Pull out the thermistor <Outdoor> (TH7) from the sensor
older.
Note: In case of replacing thermistor <Outdoor> (TH7),
replace it together with thermistor <Outdoor 2-phase
pipe> (TH6), since they are combined together.
Refer to No.5 above to remove thermistor <Outdoor
2-phase pipe>.
6. Removing the thermistor <Outdoor pipe> (TH3) and ther-
mistor <Discharge> (TH4)
(1) Remove the service panel. (See Figure 1)
(2) Disconnect the connectors, TH3 (white) and TH4 (white)
on the controller circuit board in the electrical parts box.
(3) Loosen the clamp for the lead wire in the rear of the
electrical parts box.
(4) Remove the soundproof cover (upper) for compressor.
(5) Pull out the thermistor <Discharge> (TH4) from the
thermo-holder of the compressor shell.
(6) Pull out the thermistor <Outdoor pipe> (TH3) from the
sensor holder.
OCH424E
Photo 4
Electrical parts box
Photo 5
Lead wire of thermistor <Outdoor> (TH7)
Photo 6
Soundproof
cover (upper)
for compressor
Compressor
(MC)
91
PHOTOS
Thermistor
<Outdoor 2-phase pipe>(TH6)
Clamp
Sensor holder
Thermistor <Outdoor pipe> (TH3)