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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% of the time it's the Control Panel
40% of the time it's the Light Bulb
12% of the time it's the PCB
5% of the time it's the Something else
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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.
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.
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.
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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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.
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Frequently Asked Questions
Repair Microwave Resources
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Is it worth repairing a microwave? Find out the pros and cons of repairing your microwave at Sears Home Services.
Glossary Terms
A microwave diode is an electrical component that allows current to flow in one direction only, playing a crucial role in converting incoming electrical power into the microwave energy that cooks the food.
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.
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.
A microwave magnetron is a component in microwave ovens that generates the microwaves used to cook food.