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SErviCE iNSTruCTiONS (DO NOT mODify THiS aPPliaNCE)
General
1. Service work MuST be carried out by an authorised
service person only.
2. unplug from switch socket or turn off power at
isolating switch if heater is hard wired.
3. Always shut off the gas supply and ensure that
the heater is cool before commencing any
service operations.
4. Always check for gas soundness after servicing.
To Replace The Inner Glass
1. refer page 10, of the installation instructions.
2. refit glass and replace in reverse order ensuring the
inside surface of the glass is clean and free from
finger marks.
To Replace The Outer Glass
1. remove the front glass surround by holding it firmly
on either side and pulling it towards yourself.
2. loosen bottom glass frame and remove top
glass frame.
3. replace glass and refit in reverse order.
Note: ensure the inside surface of the glass is clean and
free from finger marks.
To Replace The Gas Valve
1. remove the lower pedestal front by unscrewing four
screws, 2 either side.
2. unplug the cables from the gas control and
disconnect the earth connection.
3. Disconnect the gas inlet (1/2" compression nut)
connection at entry gas control and the 16mm nut at
the outlet of the gas control.
4. remove the three M3 screws from the cradle retaining
the gas control.
5. remove gas control valve from heater.
6. replace gas control in reverse order and check for
gas tightness
Note: check the gas pressure on high and low burner
settings. refer 'gas control', page 14.
To Replace The Electronic Controller
1. unplug both fan and main loom from wiring harness.
2. remove bracket securing electronic controller
in position.
3. replace electronic controller and refit in reverse order.
To Replace The Ignition Module (Device)
1. unplug wire connectors from ignition module.
2. remove module mounting bracket by removing
mounting screw.
3. using pliers bend tabs so that module can come
away from the mounting bracket.
4. replace ignition module and ensure that all wires are
reconnected correctly
To Replace The Room Circulation Fan
1. remove the lower pedestal front by unscrewing four
screws 2 either side.
2. Disconnect the fan plug from the plug carrier. remove
the two M5 wing nuts which locate the fan to the fan
chamber underside. lower fan from male thread.
3. Disconnect the silicon tubes from the fan pressure
switch, rotate the fan scroll 90˚ and remove the
silicon tubes from the venturi located in the fan scroll.
remove fan from fan chamber.
4. replacement fan. remove the venturi and bracket
from original fan. Insert and secure the venturi and
bracket on replacement fan.
5. Insert fan into fan chamber ensuring that the venturi is
not disturbed. replace silicon tubes onto the venturi
and locate fan onto male thread. Secure with M5 wing
nuts, ensuring rubber buffer locates over thread. refer
FIg 23.
6. replace silicon tubes onto fan pressure switch and
reconnect fan plug into plug carrier. (Note: Black tube
to engage with black nipple on pressure switch)
7. Test operation of room circulation fan and fan pressure
switch - turn heater on low burner/fan. The room fan
should operate instantaneously and a possible 5 - 10
second delay for the fan pressure switch to energise
dependant on room temperature. The burner should
also operate on high setting (after the 3 min delay on
initial start). If the heater fails to light even when the fan
is spinning refer to fault codes on page 18.
Ignition Module
Electronic Controller
room Fan
gas valve
fig 22
Cannon Canterbury Freestanding | 15
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