Servicing - Rangemaster 90 Gas User Manual

WARNING – SERVICING TO BE CARRIED OUT ONLY BY AN AUTHORISED PERSON
Disconnect from electricity and gas before servicing. Check appliance is safe when you have finished.

Servicing

BEFORE SERVICING ANY GAS CARRYING

COMPONENTS. TURN OFF THE GAS SUPPLY
Check the appliance is gas sound after completion
of service. When checking for gas leaks do not use
washing up liquid – this can corrode. Use a product
specifically manufactured for leak detection.
Do not use reconditioned or unauthorised gas
controls.
Disconnect from the electricity supply before
commencing servicing, particularly before removing
any of the following: control panel, side panels,
hotplate tray or any electrical components or covers.
Before electrical reconnection, check that the
appliance is electrically safe.
1. To Remove the Control Panel
Disconnect from the electricity supply.
Pull off all the control knobs.
Open the grill and right-hand oven doors and remove the four
fixing screws underneath the control panel.
The control panel should drop down slightly. It is held at the
top by two holes in the top edge, one at each end, that locate
on tags on the inner panel.
Clear the control panel holes from the inner panel and pull the
control panel forward.
Disconnect the wiring from the rear.
Reassemble in reverse order. When replacing leads refer to the
wiring diagram. Check operation of timer.
2. To Remove the Hotplate
Disconnect from the electricity supply.
Remove the pan supports and burner heads. Remove the
screws holding the hotplate burners to the hotplate.
Remove the 6 screws holding the hotplate tray to the cooker.
Taking care not to damage the burner electrodes, carefully lift
the hotplate, from underneath disconnect the earth lead at
the right-hand rear from the rear cross member and withdraw
the hotplate.
Reassemble in reverse order ensuring that the leads are
reconnected. Take care not to damage the ignition electrodes
of the burners.
It is important that the rear earthing leads are replaced when
the fixing screws are refitted as they from part of the cooker
earthing.
Check for correct burner operation.
3. To Remove the Side Panels
Disconnect from the electricity supply.
Remove the Control Panel (see 1). Pull the cooker forward.
Remove the four retaining screws for each panel (1 at the front
base, one on the top and two at the rear).
Reassemble in reverse order.
4. To Replace the Ignition or light Switch
Disconnect from the electricity supply.
Remove the Control Panel (see 1).
Note: The old switch may be destroyed during removal.
Remove the old switch from its bezel by gripping the switch
body behind the control panel and twisting sharply. The
switch bezel can then be removed by folding back its locking
wings and pushing forward.
Fit the new bezel to the control panel by first lining up the
raised key on its body with the cutout in the control panel and
pushing it in from the front. Assemble the new switch to the
bezel by lining up the key sections and pushing home. Fit the
new button by pushing in from the front.
Replace the Control Panel in reverse order and test for correct
operation.
5. To Replace the Clock
Disconnect from the electricity supply.
Remove the Control Panel (see 1). Pull off the timer control
button(s).
Remove the timer/mounting bracket assembly from the
control panel by removing the fixing screws.
Remove the timer from its mounting bracket by depressing
the plastic lugs on the timer case, at the same time pulling the
unit forward.
Reassemble in reverse order. When replacing the leads, refer to
the wiring diagram. Check the operation of the timer.
6. To Remove a Thermostat
Left-hand Gas Oven
Disconnect from electricity supply.
Remove the left-hand side panel (see 3). Open the oven door.
Unclip the thermostat phial from the clips at the front of the
oven roof. Disconnect tubing nut at rear of thermostat and
remove the screw(s) securing the thermostat to the gas rail.
Remove thermostat and gasket/seal. When fitting replacement
thermostat use the new gasket/seal supplied.
25