Mitsubishi Electric PUHZ-RP35VHA Service Manual page 103

OPERATING PROCEDURE
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 (red) on the controller circuit
board in the electrical parts box.
(4) Loosen the clamp for the lead wire in the rear of the
electrical parts box. (See photo 4.)
(5) Pull out the thermistor <Outdoor> (TH7) from the sensor
holder.
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.4. to remove thermistor
<Outdoor 2-phase pipe>.
6. Removing the thermistor <Discharge> (TH4)
(1) Remove the service panel. (See photo 2.)
(2) Remove the top panel. (See photo 1.)
(3) Remove the front panel. (See photo 1.)
(4) Remove the back panel. (See photo 1.)
(5) Remove the electrical parts box. (See photo 5.)
(6) Pull out the thermistor <Discharge> (TH4) from the sensor
holder. (See photo 8.)
w When attaching the thermistor <Discharge> (TH4), place it
to its original position.
7. Removing the solenoid valve coil <Four-way valve> (21S4)
and linear expansion valve coil (LEV (A), LEV (B))
(1) Remove the service panel. (See photo 2.)
(2) Remove the top panel. (See photo 1.)
(3) Remove the front panel. (See photo 1.)
(4) Remove the back panel. (See photo 1.)
(5) Remove the electrical parts box. (See photo 5.)
[Removing the solenoid valve coil <Four-way valve> (21S4)]
(6) Remove 1 solenoid valve coil <Four-way valve> fixing
screw (M4 6).
(7) Remove the solenoid valve coil <Four-way valve> by
sliding the coil to the right.
[Removing the linear expansion valve coil (LEV (A), LEV (B)) ]
(6) Remove the linear expansion valve coil by sliding the coil
upward.
Photo 7
Electrical parts box
Photo 8
Photo 9
Linear expansion
valve coil (LEV B)
Linear expansion valve
103
PHOTOS
Thermistor <Outdoor>
(TH7)
Sensor holder
Thermistor <Discharge>
(TH4)
Linear expansion
valve coil (LEV A)
solenoid valve coil
<Four-way valve>
(21S4)
solenoid valve coil
<Four-way valve>
fixing screw
Four-way
valve