MER6875AAS Maytag Gemini Lower Oven Won't Heat Properly

[TristaEverhart]

Model Number

MER6875AAS

Brand

Maytag

Age

More than 10 years

I have a Maytag Gemini oven (Model MER6875AAS). The bottom element in the lower oven burned out in dramatic fashion with flames and a sizzling noise. It even tripped the breaker. We flipped the breaker back on and the stovetop, upper oven, and broiler in bottom oven all seem to be working fine. We ordered a replacement element and installed it today. It turns on, but the oven won't heat above 220 degrees. The box the element arrived in was damaged and the element seems slightly bent, but I wouldn't think that would really cause a problem. Any ideas as to what our problem could be?

 

[rickgburton]

What usually happens when an element shorts out, it takes out more than the element. It usually takes the control board with it or at least that part of the board with the lower oven bake circuit. Check the oven sensor for 1100Ω @ room temperature. If the elements and sensor check good replace the control board.
WP5701M799-60 Control

 

[TristaEverhart]

Where would I find the oven sensor and how would I go about checking it? We have a voltmeter. Is that what we would use?

I read another post about a similar problem and it turned out to be a problem with a relay. Could that be our issue? How would I test for that?

 

[rickgburton]

The oven sensor is about the size of a pencil and sticks out of the back wall in the oven. Looks like :
WP7430P044-60 Sensor


You can either slide the range out and remove the back panel to check the sensor, or you can remove it from inside the oven. Remove the two screws and pull the wire connector through the hole then disconnect it.

If your meter is a digital multimeter that can measure volts and ohms, yes use that. Set it to a low ohms scale and measure the sensors resistance at room temperature.

The problem may very well be a relay on the control board but the control board is not field serviceable. Some members with an electronic background have repaired boards before with some success. Appliance techs only go to board level. We don't have any board schematics. The board supplies the voltage to the elements so if the elements are good and the sensor is good there's a voltage problem from the board.