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Electrolux Microwave turns on by itself

An Electrolux over-the-range microwave is turning on by itself, first determine whether only the vent fan is running. During stovetop cooking, the microwave fan turns on by itself when its thermostat senses excess heat, then shuts off after the microwave cools. If the microwave starts operating without a cooking command, check the touchpad and main control board first. A defective main control board can send an unintended start signal and may need replacement. A malfunctioning interlock switch is another common cause. Test the interlock switches with a multimeter and replace a faulty switch. If the switches are not properly engaged, inspect the switch holder behind the control panel for damage or misalignment. Less commonly, circuits in the touchpad and control panel can contact each other intermittently, requiring replacement of the touchpad, control panel, or both. These checks may require opening the outer cabinet. Unplug the microwave first, and remember that the high-voltage capacitor can store a lethal charge even after power is disconnected. It must be properly discharged before interior work, so use a qualified technician if you are not familiar with capacitor discharge procedures. Enter your model number to find the exact Electrolux replacement part for your microwave.

01 - Electrolux Microwave Main Control Board

First, make sure that the touchpad is working properly. If the touchpad is working properly, the main control board is likely at fault. If the control board is defective, replace it.
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Top Solution

02 - Microwave cooling down during stovetop cooking

Most over-the-range microwaves have a vent fan thermostat that will turn the vent fan on automatically to keep the microwave from overheating. The fan will shut off after the microwave cools back down.
Highly Likely

03 - Electrolux Microwave Interlock Switch

A microwave that turns on by itself can be caused by a malfunctioning interlock switch. You can use a multimeter to test the interlock switches to determine if they are functioning appropriately and replace if necessary.
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Common

04 - Electrolux Microwave Switch Holder

The microwave switch holder is the component that houses the door switches behind the control panel. If the switch holder is damaged or misaligned, the switches may not be properly engaged which could cause the microwave to turn on by itself. You will need to uninstall the control panel and inspect the switch holder to confirm it is in good condition and secured properly. Replace the switch holder with a new one if necessary.
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Common

05 - Electrolux Microwave Touchpad and Control Panel

It’s possible that the touchpad and control panel button circuits are coming into contact with each other intermittently which could cause the microwave to turn on by itself. If this happens, the touchpad and control panel will need to be replaced.
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Less Common

06 - Electrolux Microwave Touchpad

It’s possible that the touchpad button circuits are coming into contact with each other intermittently which could cause the microwave to turn on by itself. If this happens, the touchpad will need to be replaced.
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Less Common

Frequently Asked Questions

Why does my Electrolux over-the-range microwave fan turn on by itself?
Why does my Electrolux microwave turn on when the door opens or by itself?
How do I test the door switches and switch holder on an Electrolux microwave?
Could the touchpad or control board cause my Electrolux microwave to turn on by itself?
How do I find the correct Electrolux microwave replacement part?

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