It is important that servicing be carried out by
authorised personnel.
With normal use, a cooker flueway clean and burner
service should be carried out once per annum.
The householder should be advised to turn OFF the
cooker control knob B the night before, the day of service,
so that the appliance will have cooled down by the
following morning, in readiness for servicing. Before
commencing any servicing, turn OFF the gas supply at
the appliance service gas cock (below cooker burner
control valve).
After servicing the appliance it must be tested for spillage
- see Commissioning Section Clause 18 for full test
details.
WARNING: DISCONNECT FROM ELECTRICITY
SUPPLY OR 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 main burner inlet union connection below
valve.
d. Disconnect solenoid plug by undoing the small screw
in the top of the plug.
e. Loosen the two top fixing screws and remove the
two lower fixing screws on the burner front plate.
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 toothbrush bristle or similar if necessary.
DO NOT USE OVERSIZE WIRE TO CLEAN INJECTOR
ORIFICE
Examine probe end of flame supervision device and
replace flame failure probe if probe end is badly pitted,
corroded or malfunctioning.
To Clean Heat Exchanger and Flueways
a. Remove the main and pilot burner assembly as
previously described.
b. Place a layer of paper on combustion chamber base
plate.
c. Examine insulation panels for any signs of
deterioration, replace if needed. Clean oven (a cast
iron side 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 underside of
hotplate baffle plate. Replace if necessary.
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 below burner
control valve. Light pilot and turn oven control knob to
confirm the burner lights satisfactorily in accordance
with lighting instructions.
Only to be carried out by authorised personnel.
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 gasket.
8
Servicing Instructions
ANNUAL SERVICING
STANDARD ANNUAL SERVICE
SCHEDULE
REPLACEMENT OF PARTS
