Rangemaster 90 - Manual (Page 33)

SERVICING - WARNING
Disconnect from electricity and gas before servicing. Check ap pli ance is safe when you have finished.
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7. To Remove a Thermostat
Remove control panel (see 2) and cooktop (see 3).
Open the appropriate oven door and remove the oven
shelves.
RH oven
Remove oven roof. Remove the two fi xings that secure
the thermostat phial cover. Unclip the thermostat phial
from the clips in the oven back panel & remove from the
top rear of the oven.
LH oven
Remove the two screws holding the thermostat phial
to the oven fan cover at the rear of the oven. Pull the
unit forward to access the rear of the cooker. Remove
both rear cover boxes by removing the fi xing screws
and lifting clear. Feed the thermostat capillary clear
of the oven. Disconnect the wires from the thermostat
and undo the two fi xings that secure the control to the
mounting plate. Fit the replacement and re-assemble
in reverse order. Ensure that the phial is clipped to the
oven rear, positioned centrally between the clips. Check
that the thermostat functions correctly.
8. To Change Grill Controller
Remove the control panel (see 2) and cooktop (see 3).
Disconnect wiring from controller. Remove 2 screws
holding switch/controller to mounting panel. Fit new
controller and reassemble in reverse order. Check for
correct operation.
BEFORE SERVICING ANY GAS CARRYING
COMPONENTS TURN OFF GAS SUPPLY.
9. To Change a Hotplate Tap
Remove the cooktop top, see 3. Undo the nut at rear of
the valve and remove the screw(s) securing valve to gas
rail. Remove old valve, discard old gasket/seal. Fit new
gasket/seal to new valve.
Reassemble in reverse order. Check valve is adjusted
for correct gas. Check cooker is gas sound.
10. To Change a Hotplate burner jet
Standard burner Wok burner
A jet, B internal injector, C external injector
Remove burner cap and head. Remove old jet. Fit new
jet. Note the Wok burner has 2 jets. Reassemble in
reverse order. Check appliance is gas sound.
11. To Change Hotplate Burner Electrode
Lift off hoplate pan supports, remove burner cap.
Remove the screw holding the electrode. Pull electrode
vertically up suffi ciently to grip the lead between thumb
and forefi nger. Pull off the electrode, but keep hold of
the lead. Fit new electrode to the lead. Fix electrode
in burner with screw. Replace burner cap. Check the
burner ignition. Replace pan supports.
12. To Remove or Change a Hotplate Burner.
Remove the cooktop tray (see 3). Remove the control
panel (see 2).
Outer Hotplate burners
The burners are mounted in 2’s on cross supports.
Disconnect the burner feed pipes at the burners.
Remove the screw at the front holding the cross
support. Slide the support to the right to release in from
the rear location. Lift the cross support and burners
clear. The burners are fi xed to the cross supports with
screws underneath. Remove the appropriate burner and
fi t the new one. Reassemble in reverse order. Check
burner operation is satisfactory.
Wok burner
Disconnect the burner feed pipes at the burner. Fit the
new one and reassemble in reverse order. Check burner
operation is satisfactory.
To Remove Grill Outer Door Panel
Open left hand oven door and remove 2 screws from
bottom edge of grill door. Open grill door, support grill
door outer panel and remove two screws from top inner
face of grill door.
Reassemble in reverse order.