How to Repair a Microwave

Microwave ovens are extremely convenient, but they can also be quite finicky. If your microwave oven breaks, you may think that you’ll have to replace it with a new one, but most repair are not difficult or costly. And in some cases, you may even be able to make the repairs yourself—saving you the expense of hiring someone else to do it! Here’s how to repair a microwave if your appliance breaks down on you.

Tools Required

  • wire cutters
  • needle
  • nose pliers.

The first step is to unplug your microwave from its power source and remove any metal objects that might be inside of it (including spoons or forks). Then open up your microwave and remove all of its components, including the turntable and any glass plates that might be on it.

Troubleshooting Tips

The first thing you should do when troubleshooting any microwave oven is press RESET. This can reset any error code that may have been triggered and bring your appliance back to its normal operating condition. Depending on what model you have, it could take anywhere from 1-3 minutes for your microwave to cycle through all of its functions and power off completely.

If pressing RESET doesn’t fix your issue, here are some other things you can try A) Check if anything inside your microwave has overheated or caught fire. Turn off your microwave and unplug it before investigating further; even if there isn’t smoke or fire visible, be sure to wear protective gloves while handling anything inside (especially if it was recently hot). If something has melted or burned, clean up with soap and water as soon as possible—then replace whatever has been damaged.

Diagnosing the Problem


One of two things can be wrong with your microwave: it isn’t working at all, or it isn’t heating anything. Let’s first look at if you have power going into and out of your microwave. Unplug the microwave for safety reasons and test each outlet in your home. Plug something else in, like a lamp, to make sure there are no problems with that circuit or outlet. If everything is fine, plug your microwave back in and see if it works. If not, move on to step 2.

Replace the Motor Capacitor

The motor that turns your microwave’s turntable is powered by an electric current, which comes from a capacitor. Capacitors are like batteries: they store electricity. But they can only hold it for so long before they become drained and need to be recharged or replaced. When you hear that loud buzzing sound followed by dimming lights and other signs of capacitor failure, it’s time to get out your toolbox and test your capacitor.

If it fails testing, replace it with a new one—but make sure you buy one made specifically for microwaves. Old-school capacitors won’t work in newer microwaves, because their voltage requirements differ.

Replace the Main Fuse

One of two things might be wrong with your microwave. The first is that there’s no power getting to it, which would indicate a blown fuse. In many modern microwaves, you can find and replace one or more fuses without having to call an electrician—you can search online for instructions on how to do so based on your microwave model.

If you don’t want to mess around with opening up your microwave, take it in to an appliance repair shop instead. If they find a blown fuse, they should be able to get everything working again quickly.

Replace the Control Board

If your microwave makes strange noises or does not heat food evenly, you may have to replace its control board. A faulty control board can often be diagnosed by checking for burnt spots in and around it. If your microwave will not turn on but otherwise appears in good condition, replace its fuse before purchasing a new control board.

Make sure to unplug your microwave before making any repairs! To do so, shut off power at your home’s circuit breaker box. When you are certain that power is off, check again with a voltage tester to ensure that no electricity is present.

Check Your Connections

Before trying any other repairs, check your microwave’s power cord and circuit breaker. If either one of these components is faulty, you may have blown a fuse or tripped an overload switch, both of which are easy to diagnose and fix.

(If your microwave won’t turn on but all the lights on it are lit up—that’s likely an indication that your breaker has tripped.) To resolve these issues, replace or reset whatever component you think might be at fault. Then try turning on your microwave again.

Also read:-Microwave ovens

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