Is your microwave not heating? In this article, we will give you step-by-step instructions for how to find the cause of the problem and fix it.
Before we start, it’s important to note that microwaves are very dangerous to repair. Please only undertake repairs to internal components of your microwave if you are qualified to do so. Otherwise, it’s best to call a technician to come and look at your appliance or take it to a repair shop.
The first step in our guide for how to fix a microwave not heating is to check the door switch. The purpose of the door switch is to ensure your microwave cannot operate when the door is open. If the switch becomes defective, your microwave won’t be able to heat because your microwave won’t be able to start.
To check the door switch:
The next step is to check the high-voltage diode. The high-voltage diode converts your A/C power supply into D/C power so that the magnetron can operate. If you can hear a buzzing sound or humming sound coming from the microwave when it’s operating, this is a good sign that it is defective and will need to be replaced.
To ensure it is defective, you need to:
The magnetron is responsible for producing the radiation required to heat your microwave. When it becomes faulty, your microwave will not heat.
Here’s how to test the magnetron:
The thermal fuse helps to ensure your microwave doesn’t overheat, and when it does, it tells the control board to turn the microwave off.
Here’s how to check the thermal fuse:
These two components work with the high-voltage diode to power the magnetron. If either of these components becomes defective, your microwave will not heat. The main sign these parts are faulty is you will be able to smell a burning smell coming from your microwave. The problem is these parts are difficult to test and replace. Unless you have a high-end microwave, you’re probably better off purchasing a new microwave.
If you do replace the high-voltage capacitor and/or the transformer and your microwave still doesn’t work, your final option is to replace the control board. However, replacing the control board only makes financial sense if you have a high-end microwave, as it is an expensive repair to make. You might decide you’re better off purchasing a new microwave.
The F9 E1 error code means your Whirlpool washer is taking longer to drain than…
Has your Frigidaire dishwasher suddenly started displaying blinking, flashing lights? While it might look alarming,…
If your front load or top load LG washer displays the UE error code, it…
There are two phases to replacing an over-the-range microwave with a range hood. First, you…
The stench of something burnt coming from your microwave can be incredibly off-putting. It is…
If the ice maker on your Bosch refrigerator is not working, this handy guide will…
Leave a Comment