Mitsubishi Electric PUZ-ZM35VKA Service Manual page 108

OPERATING PROCEDURE
4. Removing the thermistor <2-phase pipe> (TH6)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) D isconnect the connector TH7/6 (red) on the controller
circuit board in the electrical parts box.
(4) L oosen the clamp for the lead wire on the top of the
electrical parts box.
(5) P ull out the thermistor <2-phase pipe> (TH6) from the
sensor holder.
Note: When replacing thermistor <2-phase pipe> (TH6),
replace it together with thermistor <Ambient> (TH7),
since they are combined together.
Refer to procedure No.5 below to remove thermistor
<Outdoor>.
5. Removing the thermistor <Ambient> (TH7)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) D isconnect the connector TH7/6 (red) on the controller
circuit board in the electrical parts box.
(4) L oosen the clamp for the lead wire in the rear of the
electrical parts box. (See Photo 5)
(5) P ull out the thermistor <Ambient> (TH7) from the sensor
holder.
Note: When replacing thermistor <Ambient> (TH7), replace
it together with thermistor <2-phase pipe> (TH6), since
they are combined together.
Refer to procedure No.4 above to remove thermistor
<2-phase pipe>.
6. Removing the thermistor <Liquid> (TH3) and thermistor
<Discharge> (TH4), thermistor <Comp. surface> (TH33)
(1) Remove the service panel. (See Photo 1)
(2) D isconnect the connectors, TH3 (white) and TH4 (white),
TH33 (yellow), on the controller circuit board in the
electrical parts box.
(3) L oosen the clamp for the lead wire in the rear of the
electrical parts box. (See Photo 5)
(4) P ull out the thermistor <Liquid> (TH3), and thermistor
<Discharge> (TH4) from the sensor holder. (TH3 : See
Photo 5)
[Removing the thermistor<Comp. surface> (TH33)]
(5) R emove the compressor cover (upper) and pull out the
thermistor <Comp. surface> (TH33) from the holder of the
compressor shell. (TH33 : See Figure 1)
OCH653
PHOTOS
Photo 5
Electrical parts box
Thermistor
<Liquid> (TH3)
Photo 6
Lead wire of thermistor <Ambient> (TH7)
Photo 7
Discharge thermistor (TH4)
108
Clamp
Thermistor
<2-phase pipe>
(TH6)
Sensor holder
Compressor
cover (upper)