Mitsubishi Electric PUHZ-SHW230YKA2 Service Manual page 59

OPERATING PROCEDURE
5. Removing the thermistor <Ambient> (TH7)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Disconnect the connectors of TH6 and TH7 (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 <Ambient> (TH7) from the sensor
holder.
Note: In case of replacing thermistor <Ambient> (TH7),
replace it together with thermistor <2-phase pipe>
(TH6), since they are combined together.
Refer to No.4 to remove thermistor <2-phase pipe>.
6. Removing the thermistor <Liquid> (TH3), thermistor
<Discharge> (TH4), thermistor <Suction> (TH32) and ther-
mistor <Comp. surface> (TH34)
(1) Remove the service panel. (See Photo 1)
(2) Disconnect the connectors of TH3 (white), TH4 (white),
TH32 (black) and TH34 (red) on the controller circuit
board in the electrical parts box.
(3) Release the lead wires from the cable strap on the
electrical parts box.
Cut the cable tie bundling TH3, TH4 and TH34 to release
the lead wires.
(4) Loosen the clamp for the lead wire on separator.
[Removing the thermistor<Liquid pipe>(TH3)]
(4) Pull out the thermistor <Liquid> (TH3) from the sensor
holder.
[Removing the thermistor<Discharge>(TH4)]
(4) Pull out the thermistor <Discharge> (TH4) from the
sensor holder.
[Removing the thermistor<Suction pipe>(TH32)]
(4) Pull out the thermistor <Suction> (TH32) from the
thermoholder.
(TH32 : See Figure 5)
[Removing the thermistor<Comp. surface>(TH34)]
(4) Remove the sound proof cover (upper) for compressor.
(5) Pull out the thermistor <Comp. surface> (TH34) from the
holder of the compressor shell.
OCH594B
PHOTOS/FIGURES
Photo 5
Lead wire of thermistor <Ambient> (TH7)
Photo 6
Thermistor
<Discharge>
(TH4)
Soundproof
cover (upper)
for compressor
compressor
(MC)
59
Sensor holder
Thermistor
<Liquid> (TH3)
Thermistor
<Comp. surface>
(TH34)