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C. Blower Replacement
1. Convection Blower Replacement
NOTE: The convection blower must be removed before the
exhaust blower can be removed.
a. Turn down thermostat, let appliance completely
cool and then unplug appliance before servicing.
b. Remove both side curtains by loosening 2 screws
(do not remove) and pull side panels away.
c. Remove 4 screws from the back screen and pivot
the top of the screen toward you leaving the bottom
attached to appliance (Figure 27.1).
d. Remove 2 screws to remove the thermostat block
and disconnect the 2 yellow wires.
e. Remove the 2 screws from the power inlet and
rotate it through the hole and out of the screen,
leaving the wires attached.
f.
Disconnect the vacuum hose and both wires
(orange and red) from the vacuum switch attached
to the rear screen.
g. Remove both wires from exhaust blower (blue and
double white).
h. Remove 6 screws using a flathead screwdriver
or a 1/4" nut-driver. Retain screws for use on
replacement blower (Figure 27.2).
i.
Remove exhaust blower and gasket.
j.
Install new gasket and blower. Discard blower
housing if not needed.
k. Re-install in reverse order.
Side Screws,
Loosen Do Not
Remove
Remove back screws and
bend top back leaving it
attached at the bottom
Figure 27.1
Figure 27.2
Remove 6 screws
February 11, 2019
Figure 27.3
2. Combustion Blower Replacement
a. Turn down thermostat, let appliance completely
cool and then unplug appliance before servicing.
b. The convection blower is located at the bottom
rear of the appliance and is housed inside a screen
box. Remove the 2 screws facing forward in the
center of the blower chamber at the very back of
the appliance.
c. If an outside air kit is installed on the appliance,
these screws attach the intake air channel piece
of the outside air kit to the appliance. Remove
the 2 screws and pull backwards on the channel
and it will slide down and away from the appliance.
The air channel, collar and outside air hose will be
removed as one piece.
d. There are 2 screws on each side of the housing.
Loosen all 4 screws, but do not remove them. Lift
the blower housing up slightly and slide towards
you (Figure 28.1 on page 28).
e. Remove the left side panel by loosening 2 screws
Side Screws,
(do not remove) and pull side panel away. Unplug
Loosen Do Not
the 2 black blower wires by disconnecting the
Remove
spade connectors.
f.
To remove blower from the housing, remove 2
screws in the front of the housing and very carefully
bend the 2 housing sides out and bend the back
of the housing away from the blower. This allows
for room to access the back 2 screws and nuts (4
total) that is securing the blower to the housing.
g. Remove blower and replace with new blower.
h. Re-install in reverse order.
7021-155H
CASTILE FREESTANDING
Combustion
Blower
Figu
27
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