It is important that servicing is carried out by a
competent service engineer, and it is recommended
that a contract be made with a registered installer.
The householder should be advised to turn OFF the
cooker control knob
B
the night before, the day of the
service, so that the appliance will be cooled down by the
following morning, in readiness for servicing. Before
commencing any servicing, turn OFF the gas supply at
the appliance gas service cock (below cooker burner
control valve).
WARNING: DISCONNECT FROM ELECTRICITY
SUPPLY AND REMOVE PLUG BEFORE
COMMENCING SERVICING.
Oven Door Fit -
Both doors must be checked and
adjusted if necessary to ensure the alignment with the
door catch is correct, the keep is secure and the oven is
sealed when the door is closed.
To Obtain Servicing Access - Fig. 1.
To obtain servicing access to main gas burner, gas control
and heat exchanger, proceed as follows:
a. Lift out the hotplate.
b. Open the outer burner door
A
and lift it off.
c. Disconnect the main burner inlet union
connection below valve.
d. Loosen the two tap fixing screws and remove the
two lower fixing screws on the burner front plate.
e. Lift up the burner front plate and draw carefully
forward.
f.
Lift up the burner front plate and draw carefully
forward.
To Service Main Burner
Gently brush away any deposit on burner and examine
gas ports. Remove any lint or fluff from injector and
venturi entrance, and check pilot burner assembly for
damage, and probe bracket for correct alignment.
DO NOT USE WIRE TO CLEAN INJECTOR ORIFICE.
To Service Pilot Burner
Remove pilot burner as instructed in ‘Replacement of
Parts’ in Section 5.
Remove pilot injector and check to see if it is free of
deposit with a tooth brush bristle or similar if necessary.
DO NOT USE WIRE TO CLEAN INJECTOR ORIFICE.
Examine probe end of flame failure device and replace
flame failure probe if probe end is badly pitted, corroded
or malfunctioning.
To Clean Heat Exchanger and Flueways
a. Replace the main and pilot burner assembly as
previously described.
b. Place a layer of paper on combustion chamber
baseplate.
c. Examine insulation panels for any sign of
deterioration, replace if necessary.
d. Remove layer of paper with fallen debris.
e. Check that oven top is free of deposit and brush
in between ribs on hotplate underside.
f.
Examine soft rope seal located on the underside of
hotplate baffle plate, Replace if worn or frayed.
g. Examine soft rope seal located around hotplate
aperture in top plate. Replace if frayed or damaged.
h. Re-fit the main and pilot burner assembly in
reverse order of assembly. Test all disconnected
joints for gas soundness.
i.
Replace hotplate ensuring that the underside ribs
lie over the combustion chamber.
j.
Turn ON appliance service cock on outside of
appliance. Light pilot and turn oven control knob
to confirm the burner lights satisfactorily in
accordance with lighting instructions.
Only to be carried out by a competent Service
Engineer.
1. Oven Temperature Indicator
a. Open main oven door and remove from cooker.
Place enamelled side on a cloth to protect it, and
remove four screws securing inner lining panel to
outer door.
b. Remove inner lining panel and slagwool insulation.
c. Unscrew two hexagon nuts securing indicator to
outer door and remove indicator.
d. Fit replacement indicator in reverse order of
dismantling.
e. Seal indicator to door with heat resistant string
and seal with fireclay.
f.
Reassemble as c, to a, above.
2. Thermocouple
a. Remove burner assembly as detailed in Servicing
Schedule.
b. Remove thermocouple from gas valve.
c. Remove thermocouple from pilot burner.
d. Replace with new thermocouple assembling in
reverse order.
e. Reassemble burner assembly into cooker.
3. HT Spark Lead
a. Remove burner assembly as detailed in Servicing
Schedule.
b. Remove HT Spark Lead from Piezo Spark Generator.
c. Remove HT Spark Lead from Spark Electrode.
d. Replace with new HT spark lead, reassembling in
reverse order.
e. Reassemble burner assemblies into cooker.
8
Servicing Instructions
ANNUAL SERVICING
SERVICE SCHEDULE
REPLACEMENT OF PARTS
