My Tappan range is about 11 years old I think it is a model 285640A, and the oven temp is always low. The temp is about 75 degrees off. The oven temp is lower than what the control says it is. I have adjusted the screws on the back of the oven temp knob until there is no adjustment left.
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broiler on top of oven?? if so it might have a second ignitor that is working. Most units now with gas have an electric ignitor to start gas ovens. What they do is send electric current through an electric "wire", when enough current is flowing through wire to open gas valve the wire is hot enough to ignite the gas flowing over it. When you turn on the oven look at the burner and after 1 imute or so you should be able to see an Orange glow in bottom of oven if not I'm sure its the ignitor, if glows then probably oven valve is bad. I'd guess ignitor because most oven makers use this ignitor to mantain a warming temp (around 100 degree's) so since your display doesnt register over inital "start" temp of 75, i'd bet ingitor not coming on at all
Are you sure that both elements are working?
I would try the top element alone by selecting 'Broil,' and the bottom element is easy enough; a hand on the bottom in a cold oven just turned on.
The bottom element alone can probably produce a good bit of heat but I think for higher temps both need to be functional.
If the element glows its ok , if you have replaced the sensor with a new one it can only be the control board. in some cases you can adjust the temp. through the control , it should list directions to do so in the manual. Good luck
Hello paultoledoWelcome to fixya. I'm Huuum and happy to assist you,
You said, You got a 5-year old Tappan gas range. Two of the burners don't
ignite, the other two and the oven are fine. What do you need to do to
fix the problem? Sounds like a yes from where I'm sitting, your right on target, buying a new spark module will fix it.
That sounds like the spark modules. I think you are correct!
Let me know if you need me! Please remember to leave a solved rating! Huum
If you have electronic controls, you'll need either the temperature probe (about $60.00) or the clock (about $150.00). You can test the temperature probe from behind the machine. It should read about 1080 ohms at room temperature. if the probe is good, replace the clock.
If you have mechanical oven controls, you need a new thermostat. Is the too high temp consistent? (i.e. runs at 375F +/- 25F?) If so, you can usually adjust the thermostat **** to read closer to the actual temperature.
I would suggest looking at how long before the bake burner ignites. If taking longer than 5 minutes before it ignites, then you are looking at a possible bad ignitor. The ignitors just don't last more than 5 yrs with regular use.