Rangemaster Nexus 90 Dual Fuel, User'S Manual & Installation Instructions

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6. Troubleshooting

Hotplate ignition or hotplate burners faulty

Is the power on? Is the clock illuminated?
If not, there maybe something wrong with the power 

supply.
Are the sparker (ignition electrode) or burner slots 

blocked by debris.?
Are the burner trim and caps correctly located? See the 

section on 

‘Cleaning’.

Hotplate burners will not light

Make sure that the burner parts have been replaced 

correctly after wiping or removing for cleaning.
Check that there is not a problem with your gas 

supply. You can do this by making sure that other gas 

appliances you may have are working.
Do the burners spark when you push the control?
If not, verify that the power is on by checking that the 

clock is illuminated.

Steam is coming from the oven

When cooking foods with high water content (e.g. oven 

fries) there may be some steam visible at the rear grille.
Take care when opening the oven door, as there may 

be a momentary puff of steam when the oven door 

is opened. Stand well back and allow any steam to 

disperse.

What cleaning materials are recommended for the 

cooker?

See the 

‘Cleaning’ 

section for recommended cleaning 

materials.

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Never use caustic or abrasive cleaners as these will 

damage the surface.

An oven fan is noisy

The note of the oven fan may change as the oven heats 

up – this is perfectly normal.

The knobs get hot when I use the oven or the grill. Can I 

avoid this?

Yes, this is caused by heat rising from the oven or the 

grill, and heating them up. Do not leave the oven door 

open.
Make sure that the grill pan is pushed right back to the 

‘back stop’ when grilling.
Always grill with the grill compartment door open.

The fascia gets hot when I use the oven or grill

The cooker is cooled by a fan. If the fascia becomes 

excessively hot when the cooker is in use then the 

cooling fan may have failed. Should this occur please 

contact your installer, a qualified repair engineer or 

Customer Service to arrange for its repair.

If there is an installation problem and I don’t get my 

original installer to come back to fix it who pays?

You do. Service organizations will charge for their call 

outs if they are correcting work carried out by your 

original installer. It is in your interest to track down your 

original installer.

Power failure

In the event of a failure in the electrical supply, 

remember to reset the clock to make sure that the 

timed oven continues to operate.

Food is cooking too slowly, too quickly, or burning

Cooking times may differ from your previous oven.
Check that you are using the recommended 

temperatures and shelf positions – see the oven 

cooking guide. The oven control settings and cooking 

times are intended to be used only as a guide.
Individual tastes may require the temperature to be 

altered either way, to get the results you want.

The oven is not cooking evenly

Do not use a baking tray with dimensions larger than 

those specified in the section on 

‘General Oven Tips’.

If you are cooking a large item, be prepared to turn it 

round during cooking.
If two shelves are used, check that space has been left 

for the heat to circulate. When a baking tray is put into 

the oven, make sure that it is placed centrally on the 

shelf.
Check that the door seal is not damaged and that the 

door catch is adjusted so that the door is held firmly 

against the seal.
A dish of water when placed on the shelf should be the 

same depth all over. (For example, if it is deeper at the 

back, then the back of the cooker should be raised up or 

the front lowered.) If the cooker is not level arrange for 

your supplier to level it for you.

The timed oven is not coming on when automatic cooking

Has the oven knob been left in the OFF position by 

mistake?
Is the oven locked (see above)?

Oven temperature getting hotter as the cooker gets older

If turning the temperature down using the oven control 

knob has not worked, or has only worked for a short 

time, then you may need a new thermostat. This should 

be fitted by a service person.