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  1. Repair
  2. KitchenAid

KitchenAid microwave fan not working

Common reasons your KitchenAid microwave fan is not working

The most common reasons your KitchenAid microwave fan is not spinning are a bad thermostat, malfunctioning electronic control board or a failed user interface.

  • 52%

    52% of the time it's the

  • 33%

    33% of the time it's the
    Electronic Control Board

  • 6%

    6% of the time it's the
    User Interface

  • 9%

    9% of the time it's the
    Something else

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    Most common repairs needed to fix a KitchenAid microwave

    Thermostat Replacement

    A bad thermostat in a microwave will cause a variety of issues, mainly with power to the components of the microwave. Microwaves have several internal thermostats that protect you from harm when components inside the microwave fail. Many microwaves have a magnetron thermostat that trips when it detects high current going to the magnetron or high temperature in that area of the microwave cavity. Another thermostat monitors the temperature of the cooking cavity and trips when high temperatures occur. If any of these thermostats trip, the microwave won’t start, lights and fans will be inoperative and the display will be blank. Because microwaves contain a high-voltage transformer and high-voltage capacitors that retain a lethal amount of electricity even with the microwave unplugged, a Sears Home Services professional should examine the microwave and perform the repair.

    Electronic Control Board Replacement

    If a microwave electronic control board is malfunctioning, it can lead to various failures in the microwave, including a lack of power or heating, or it could prevent the microwave from turning off. This is because the board serves as the brain of the microwave, controlling crucial components such as magnetron the heats food, cooling fans, lights, the turn-table motor, cooking times and power level settings and the display. If the electronic control board malfunctions, it can disrupt communication between many different components. A failing board may cause a chattering or clicking noise or emit a burning odor. Due to the potential impact on multiple components, it is advisable to have a Sears Home Services professional conduct diagnostic tests on the board to confirm if replacement is necessary.

    User Interface Replacement

    A failed user interface in a microwave won’t allow you to change microwave cook time, power level, under-counter light or fan settings. The settings and status won’t display properly or won't display at all on a defective user interface, and communication between the main control board and user interface will fail. If you suspect a failed user interface, have a Sears Home Services professional inspect the microwave and replace the interface if necessary.

    What to expect when you experience a KitchenAid microwave fan not spinning issue

    How is the fan not spinning problem fixed?

    Correcting most fan not spinning problems usually involves replacing the thermostat, electronic control board or user interface. However, there are many potential causes, so a thorough diagnosis is key to fixing the problem. An accurate diagnosis is essential to understanding how much the repair will be.

    Sears Home Services recommendations for a microwave fan that is not spinning

    When the microwave fan is not spinning it can be for many reasons. To avoid replacing unneeded parts we recommend having a Sears Home Services professional perform diagnostic tests to identify the root cause of the problem. Our technicians are experienced at diagnosing all types of microwave failures.

    What to look out for with a microwave fan not spinning diagnosis

    Diagnosing modern appliances without proper knowledge and training can be difficult. Without using proper diagnostic techniques, fixing your microwave problem will only be achieved through changing parts on a hunch. Appliances, especially in the last 10 years, have become extremely advanced, and many models have electronic parts that are difficult to test. DIY repairs on the latest appliance models are becoming increasingly difficult.

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    5 stars!!! Michael was quick and knowledgeable! Very accommodating and professional

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    Mark really went over the microwave trying to fix it, this was his second time here for the same problem. August till ? till we get it replaced. we appreciate him for his knowledge of his job. thank you Mark

    H M, Cadiz, OH


    Mr. David is very polite and intelligent gentlemen. He came to replace a part on my microwave and he checked the microwave to make sure it was working properly. Mr. David gave me a courtesy call that he will be arriving in 15mins. He arrived on time for the appointment and took care of his job duties. Thanks Mr. David for all the hard work you do at Sears. Keep up all the good work.

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    Additional resources to help you fix your KitchenAid microwave

    How to Protect Appliances from Power Surges

    Appliances today, like many of our electronic devices, use electronic circuit boards to control their operations and functions.

    How Long Do Appliances Usually Last?

    Household appliances are a major purchase for any homeowner. Knowing how long they typically last is essential when budgeting for expenses.

    DIY Tips to Extend the Life of Your Appliances

    Cleaning and maintaining your appliances properly can help extend their lifespan and prevent costly repairs.

    Additional possible KitchenAid microwave symptoms you may experience

    • KitchenAid microwave display not working
    • KitchenAid microwave light not working
    • KitchenAid microwave no power
    • KitchenAid microwave not heating
    • KitchenAid microwave not starting
    • KitchenAid microwave not turning on
    • KitchenAid microwave not working
    • KitchenAid microwave stopped working
    • KitchenAid microwave won't turn off