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  1. Whirlpool Microwave

Whirlpool Microwave light won't turn on

Common reasons your Whirlpool Microwave light won't turn on

The most common reasons a Whirlpool microwave light won't turn on are a defective control panel, a burned out light bulb, or a malfunctioning PCB.

  • 43%

    43% of the time it's the
    Control Panel

  • 40%

    40% of the time it's the
    Light Bulb

  • 12%

    12% of the time it's the
    PCB

  • 5%

    5% of the time it's the
    Something else

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

    Andreina G, Naples, FL

    microwave

    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

    Customer

    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.

    Pamela W, Baltimore, MD

    Most common repairs needed to fix a Whirlpool microwave

    Control Panel Replacement

    When a microwave control panel is defective, it can prevent the microwave light from turning on. The control panel houses the buttons and circuitry responsible for sending signals to various components, including the light. If there is a malfunction in the control panel, it might fail to relay the signal to illuminate the light when you press the button. Issues with the control panel can cause other operational problems, such as unresponsive buttons or incorrect functioning of the microwave’s features. A skilled Sears Home Services repair technician should inspect the control panel if you think it is broken or defective, and replace the control panel if needed.

    How to read a wiring schematic video

    Light Bulb Replacement

    A defective light bulb is a common reason for a microwave light not turning on. Over time, the bulb can burn out or become damaged, rendering it unable to illuminate. When the light bulb is no longer functional, it won't produce light even when the microwave is in use. Replacing the bulb with a new, compatible one typically resolves this issue. It’s important to check the bulb and its socket for any visible signs of damage or wear. Because high-voltage capacitors in a microwave can retain a lethal electrical charge even when the microwave is unplugged, a Sears Home Services technician should install the light bulb if replacing it requires disassembly.

    How to repair burn marks on a microwave video

    PCB Replacement

    When the microwave's printed circuit board (PCB) is faulty, it can lead to the light not turning on. The PCB, also called an electronic control board, is the central hub of the microwave's electronic components, managing the flow of electricity to various parts, including the light bulb. If there is a malfunction or damage to the PCB, it can disrupt the power supply to the light, preventing it from illuminating. This can also affect other functions of the microwave, including problems with heating and the display. If you suspect the PCB is malfunctioning, a Sears Home Services technician can inspect the board and replace it if necessary.

    7 microwave mistakes

    What to expect when you experience a Whirlpool microwave light won't turn on issue

    How is the light won't turn on issue fixed?

    Correcting most microwave light won't turn on problems usually involves replacing the control panel, light bulb or PCB. 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 light won't turn on problem

    When a microwave light won't turn on, 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 light won't turn on 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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    Glossary Terms

    What is a Microwave Sensor?

    A microwave sensor is a technologically advanced feature in modern microwave ovens that measures vapor (steam) emitted by the food, adjusting the cooking time and power levels automatically for optimal results.

    What is a Microwave Waveguide Cover?

    A microwave waveguide cover is a small, often mica or plastic piece inside the microwave that covers the opening where microwaves enter the cooking chamber, protecting the microwave's internal components from food splatter and ensuring efficient distribution of the microwaves.

    What is a Microwave Magnetron?

    A microwave magnetron is a component in microwave ovens that generates the microwaves used to cook food.

    What is a Microwave Hood?

    A microwave hood, also known as an over-the-range microwave, combines the functionality of a microwave oven with a ventilation hood for stovetop cooking, efficiently saving space and streamlining kitchen design.

    Additional possible Whirlpool microwave symptoms you may experience