The bottom oven is burning food at an alarming rate, I've ordered a replacement thermostat, do you think this is the problem and if so can I get to this from inside, or will need to remove the oven from the housing to gain access from the rear?
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Have same problem, I am repairing our 648HM double oven. Top oven overheats. I am an electronics engineer. I found that top oven fan has failed, this is the first thing to replace. The grill element also failed which maybe due to the overheating oven. NIGEL
Hi There I have found some stuff for you to read and hope this will help. Let me know how it goes. It won't bakeUsually,
when an oven won't bake, it's because the bake element is burned out.
The bake element is the black, pencil- thick tube at the bottom of the
oven. When the oven heats, the element glows red. This element has an
expected life-span of several years. It may last for only one; it may
last for many more. When the element burns out, you need to replace it.It bakes poorlyHere are two instances of when food "bakes poorly:"When
the food you're baking is done on top but not on the bottom--or when
baking just takes far too long to finish--the bake element may be
burned out. You
may get fooled into thinking it's working, because the oven is hot
inside. But many electric ovens use the broil element, too, during the
preheat and bake cycles. So the food may be getting heated only by the
broil element, which causes poor baking results. If
the bake element is burned out, replacing it should solve the problem.
Otherwise, you need to further troubleshoot the oven's electrical
system to locate the defective wire or component.When
the temperature is consistent but too high or too low, it could be one
of several different things. First check to see if the thermostat
sensing bulb has come loose from its holder. It could be lying on the
floor of the oven or resting on the heating element. This would cause
the oven to not heat correctly.If the thermostat bulb is not dislodged, it's likely that the thermostat or sensor is either mis-calibrated or defective. Electronic
ovens with a digital display use a sensor to monitor oven temperature.
To solve temperature problems for these models, you may need to replace
the sensor. On some digital-display models, you can calibrate the
temperature using the key pad. See your operator's manual for details. Ovens
without a digital display often use a mechanical system for controlling
temperature. On many of these units, you can remove the thermostat knob
and adjust the knob itself to more accurately represent the actual
setting of the thermostat. If,
when you remove the knob, there's a screw on the back of it with a
small calibration plate, you can loosen the screw, adjust the plate,
then tighten the screw again. If the knob isn't adjustable, and the
oven temperature is off by more than 30 to 40 degrees, you need to
replace the thermostat to solve the problem. Best Regards Richard
If this is a fan assisted oven, then there is no bottom element, only the fan element..
Remove the panel at the rear of the oven, there you will see the element, remove any screws that you can see and pull element towards you, disconnect the leads, don't loose them, and replace element.
If no screwws are visible then you will have to remove the oven from housing and do it all from the rear of the oven. Make sure power is off before you do anything.
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