Mitsubishi Electric PUHZ-ZRP100VKA3.UK Service Manual page 108

OPERATING PROCEDURE
6. Removing the thermistor <Ambient> (TH7)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Disconnect the connector TH7/6 (RED) on the controller
circuit board in the electrical parts box. (See Photo 4 or 5)
(4) Loosen the fastener for the lead wire in the electrical
parts box.
[Removing the thermistor <Ambient> (TH7) for V model]
(5) Remove the cont. box top fixing screws (4 on top/ 4 x 10)
to remove the cont. box top. (See photo 6)
(6) Loosen the lead wire from the edge cover in the electri-
cal parts box.
(7) Loosen the clamp for the lead wire in the electrical parts
box.
(8) Pull out the thermistor <Ambient> (TH7) from thermistor
holder.
[Removing the thermistor <Ambient> (TH7) for Y model]
(5) Loosen the clamps for the lead wire on top of the electri-
cal parts box.
(6) Pull out the thermistor <Ambient> (TH7) from thermistor
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.5 in the previous page to remove the
thermistor <2-phase pipe>(TH6).
7. Removing the thermistor <Liquid> (TH3), thermistor
<Discharge> (TH4), and thermistor <Comp. Surface>
(TH33)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Disconnect the connector, TH3 (WHT), TH4 (WHT), and
TH33 (BLK) on the controller circuit board in the electri-
cal parts box. (See Photo 4 or 5)
(4) Loosen the fastener for the lead wire on the controller
circuit board in the electrical parts box.
(5) Loosen the clamp for the lead wire on separator.
(6) Pull out the thermistor <Liquid> (TH3) from thermistor
clip.
(7) Pull out the thermistor <Discharge> (TH4) from thermis-
tor holder.
(8) Remove the top damper, then pull out the thermistor
<Comp. surface> (TH33) from thermistor holder.
OCH645D
PHOTOS/FIGURES
Photo 12
Lead wire of thermistor <Ambient> (TH7)
Sensor holder
Photo 13
Damper (body)
Separator
Thermistor
<Comp.
Surface>
(TH33)
Thermistor<Discharge>(TH4)
Photo 14
Thermistor <Liquid> (TH3)
108
Valve bed
Compressor
Power receiver