Mitsubishi Electric EHPT20Q-VM2EA Service Manual page 77

DISASSEMBLY PROCEDURE
(7) Remove all screws attached to the fixing plate,
and then remove the fixing plate.(Photo 16-12)
(8) Remove the 2 screws(A) that hold the heater
stay onto the front frame(L). Lift the booster heater
slightly and remove the booster heater with the
heater stay from the front frame(L). (Photo 16-12)
(9) Remove the 2 screws(B), and remove the heater
stay from the booster heater.(Photo 16-12)
Also replace the insulation washers that are
provided on the screw of the heater stays.
Also replace the insulation sheets that are
provided on surface of the booster heater.
17. How to remove the thermostat
< thermostat >
(1) Remove the front panel.
(2) Peel off the insulation on head of the thermostat in
order to reveal the thermostat.(Photo 16-13)
(3) Pull out the thermostat, and disconnect the lead
wires from the thermostat.（Photo 17）
When installing the thermostat, install it at the top
side of the pipe as shown in the photo.
Note:
Before replacing the thermostat, be sure to power off
the cylinder unit.
Failure to do so may cause electric shock or cause the
thermostat to malfution.
Photo 17
thermostat
GCH15010
front frame(L)
fixing plate
screw(A)
heater stay
screw(A)
band
CNOUT
connector
cable
clamps
77
PHOTOS
Photo 16-12
booster heater
Photo 16-13
Insulation
cable band
thermostat
(Attach it by all means
if remove a cable band)
screw(B)
screw(B)