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Electric Oven or Range Won't Turn Off? Here's Why...

Electric Oven or Range Won’t Turn Off? Here’s Why…

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If you suddenly find that your electric oven or electric range won’t turn off, that can be a bit of a scary problem.

You’re in a situation where you have an appliance that’s essentially out-of-control while generating potentially massive amounts of heat. All sorts of nightmare scenarios spring to mind: the possibility of a fire; of internal components melting down; of electrical problems that might affect other appliances; etc.

One obvious temporary solution, of course, is simply to pull the plug. But in many situations doing even that can be difficult, requiring moving the stove just to be able to reach the plug. Another temporary solution is to turn off the circuit breaker that powers the unit.

An out-of-control oven or range is a problem that’s sure to prompt a quick call to a repairman. The following are the most common causes of ovens or ranges that can’t be turned off:

Ovens – Broil, Bake, or Convection Element Problems:

The elements in the oven generate the heat. Most ovens have both bake and broil elements. Many also have a convection element. Though it’s rare, oven elements can fail in such a way that an electrical short is created that prevents shutoff. When this happens, the only solution is to replace the element.

Ovens – Control Board

All of the controls of the oven are routed though the oven control board. The control board is composed of a collection of electrical relays and circuits. A failure within the electronics of the control board can create any number of problems, including the inability to turn off the oven.

If a control board problem is responsible for preventing the shutdown of the oven, the most likely cause is a relay within the board that has shorted in the closed position. If that has happened, the control board will have to be replaced.

Ovens – Temperature Control Thermostat

A failed oven thermostat is frequently the cause of this problem. What sometimes happens is that the electrical contacts within the thermostat overheat, and essentially become welded together. And that can prevent the shutdown of the oven since the thermostat is constantly signaling for more heat.

Ranges – Surface Elements

Just like the elements in an oven, the surface elements of a range can sometimes short in a way that prevents them from being turned off. When this happens, the only recourse is to replace the element.

Ranges – Surface Element Switch

For surface elements, the switch serves as the rough equivalent of the temperature control thermostat in an oven. And just as with an oven thermostat, it’s possible for contacts within the surface element switch to fuse together.

The result can be a switch that continuously signals the range element to produce heat, regardless of your inputs to the range control dial or touchpad.

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