Benchtop (around cooktop) getting too hot or beginning to discolour
Pot may be over hanging cooktop. Ensure pot or pan is centrally located on burner and that pot size is not too large so that it overhangs burner.

Pot is too large. Use a smaller pot. 
Brown, flaky varnish-like residue on inside of oven
Use of polyunsaturated oil. Use olive oil. Wrap meats in foil or use an oven roasting bag.
Element giving off smoke or odours when first used
Protective oils / agents used in manufacture being burned off in first cooking. This is normal.
Burner flame too high
Incorrect injector fitted. Refer to the installer to have problem rectified.

Gas pressure to appliance too high. Refer to the installer to have problem rectified. 
Burner flame will not turn down sufficiently
Incorrect injector fitted. Refer to the installer to have problem rectified.

Bypass on gas valve incorrectly adjusted. Refer to the Installer to have problem rectified.

Gas pressure to appliance too high. Refer to the installer to have problem rectified. 
Burner flames uneven or tending to lift
Flame ports blocked or wet. Clean or dry flame ports.

Burner cap / crown incorrectly fitted. Ensure burner crown & cap are fitted correctly. Refer to instruction manual.  
Burner taking too long to cook / boil
Pot or pan not located on burner properly. Ensure pot or pan is centrally located on burner.

Burner too small for pot or saucepan being used. Move saucepan to a larger burner.

Controls are incorrectly set. Check control is correct for burner being used. Check setting and increase setting.

Incorrect cookware being used or the heat setting is too high. Use a saucepan with a flat or slightly concave base. Note: If saucepan has been designed properly bottom is slightly concave And Flattens When Heated. Reduce Heat Setting When Liquid Has Boiled.

Incorrect cooking pot or pan being used i.e. incorrect size or shape. Refer instruction manual for choice of correct cooking utensils. 
Burner will not light even though ignitor is working
Gas supply valve turned off. Turn on gas supply.

Ports blocked in ignition area. Ensure that ports in ignition area are clean and dry.

Control knob not on. Turn knob to on position.

Wrong knob turned on. Check knob turned on corresponds with the correct burner.

Spark plug sparking to the wrong place because of incorrectly fitted burner crown. Ensure burner crown is fitted properly. Refer to user manual 
Burner will not stay alight / flame goes out when knob released
Knob not held down long enough in 'high' position for flame safeguard to activate. Repeat lighting procedure and hold knob down for 5 seconds in 'high' position.

Knob position not set between 'high' & 'low'. Knob position must be between 'high' & 'low'.

Dirt or spillage on flame safeguard sensor / thermocouple. Clean flame safeguard sensor / thermocouple tip.

Burner cap / crown incorrectly fitted and therefore flame safeguard sensor / thermocouple tip not in flame sufficiently. Ensure the burner crown & cap are fitted correctly. Refer to user manual. 
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Light bulb is not working. Turn off power and replace light bulb.

Light switch not working. Check door operated light switch plunger is not jammed. 
Burner not working
Power not turned on. Check cooktop is plugged in and power is turned on.

Control incorrectly set. Check knob setting.

Incorrect knob has been turned. Check correct knob turned for element being used.

Household fuse has blown / circuit breaker tripped or power supply is off. Replace household fuse. If household fuse blows when replaced or circuit breaker continues to trip call the service department.  
Burner will not simmer
Control set too high. Turn control to a lower setting.

Burner too large for pot size. Burner not suitable for pot size. 
Hob / knobs getting too hot / overheating
Pot or pan not located on burner properly & too close to knobs. Ensure pot or pan is centrally located on burner so that it does not overhang.

Pot is too large. Use a smaller pot. 
Hob seal too short / hob seal has a gap
This is correct. There is meant to be a gap in the seal. This is normally placed at the rear of the appliance and is necessary for ventilation of the cooktop.