How To Repair Your Samsung Microwave At Home

Samsung microwave

With the ability to cook your meals or warm up your beverages in a matter of minutes, the microwave truly is one of the most convenient appliances in the kitchen. 

So when your microwave isn’t working properly, it can easily interfere with your daily routine. 

After all, the microwave is designed to make life easier, not harder. 

Below, we’ll go over some of the most common microwave issues and how to troubleshoot them. 

However, before troubleshooting your microwave, it’s important to understand that you should never disassemble your microwave without a proper working knowledge of such appliances, and especially not while it’s plugged in.

If not discharged properly, the unit’s capacitor can deliver a nasty shock that can deliver a serious, and potentially deadly electric shock.

Microwave Not Heating

As mentioned, if you’re ever having issues with your microwave, it’s considerably safer to contact a professional appliance technician to repair the appliance for you, rather than put your own person at risk.

Door Switch

The microwave door switch is an on and off mechanism that prevents the microwave from operative while the door is open. 

Most switches are mounted near the door latch and are approximately one-inch long. 

If you’re experiencing problems with the microwave not heating, it may be because the door switch isn’t functioning properly. Start by examining the door switch to check for visual signs of damage. 

If the switch or door latch is broken, it will likely need to be replaced before the microwave will function properly.

Samsung microwave door switch


Samsung microwave magnetron

As part of the microwave’s high voltage circuit, the magnetron is responsible for generating the microwaves that generate heat within the unit. 

If your unit has blown a fuse, a faulty or defective magnetron may be at fault. 

Although the most obvious indication that your magnetron isn’t working is a microwave that won’t produce any heat, troubleshooting the magnetron involves disassembling the unit. 

As such, having a qualified individual investigate the source of your problem is the best course of action. 

Thermal Fuse

Samsung microwave thermal fuse

The thermal fuse (often called a thermal cut-out) is a component of the microwave designed to protect the unit from overheating. 

When a thermal cut-out fuse fails, the unit’s power is interrupted, preventing it from reaching the unit’s other internal components, such as the magnetron. 

Like the magnetron, the thermal fuse requires experience to safely troubleshoot further. 

So when you’re experiencing issues with your microwave not heating properly, you’ll need to contact a reliable appliance expert you can depend on.

Contact Littleton Appliance Pros today for quick and efficient service near you!

When you’re experiencing issues with your microwave not heating properly, you’ll need to contact a reliable appliance expert you can depend on.

Contact Littleton Appliance Pros today for quick and efficient service near you!

Broken Turntable

A microwave’s turntable is an essential component that helps ensure your food or beverages are heated evenly. 

The turntable motor is responsible for spinning the round glass tray inside the oven. So when this small parts wear out, you’ll often end up with food that’s unevenly cooked. 

Turntable Motor

Samsung microwave turntable motor

For most microwaves, the turntable motor is located under the floor of the oven. 

If you’ve noticed that your microwave is making a grinding noise or doesn’t rotate, you may need to replace the turntable motor.

Glass Tray Drive Coupling

Samsung microwave glass tray drive coupling

The glass tray drive coupling is the three-sided piece that sits on the motor shaft. This then turns the coupling, which causes the glass tray to spin within the oven. To inspect the drive coupling, remove the glass tray and gently pull up on the piece to remove it. Inspect the plastic for cracks or damage, and ensure that the coupling sits on the shaft tightly. 

If you see any visible cracking or wear on the piece, it will likely need to be replaced.

Faulty Light Bulb

Although not an integral part of your appliance, light bulbs make it easier to see into your unit before and during use.

Burned Light Bulb

Samsung microwave light bulb

If you’ve noticed that your microwave is still functioning, but the light bulb isn’t working, there’s a good chance the bulb has burned out. 

To troubleshoot this issue:

  1. Unplug the microwave or shut off the power to the microwave’s breaker.
  2. Locate and remove the bulb cover panel by removing any screws.
  3. Replace the bulb and carefully reattach the cover. 

Issues with the Light Socket

Samsung microwave light socket

When the light in the microwave has stopped working, it’s important to try changing the light bulb first before continuing with other troubleshooting methods. 

However, if you’ve completed that step and the light still doesn’t turn on, the issue may be with the light socket itself. 

With that said, troubleshooting the light socket should only be done by a professional who can safely diagnose and repair any wiring issues that may be present.

Microwave Buttons Not Working

Sometimes, your unit may still work, but you’ll have issues using the control panel and pressing the buttons.

Malfunctioning Touchpad

Samsung microwave touchpad

A common reason for a malfunctioning touchpad is an issue with the membrane switch. 

The membrane switch is made of two layers of Mylar plastic with conductive coatings that face each other. Pressing a key on the touchpad allows these surfaces to come in contact with one another, completing the electrical circuit, and allowing you to use the buttons. 

If the conductive coating on the membrane wears out (which is very common over time), the touchpad itself may need to be replaced.

Main Control Board

Samsung microwave main control board

You’ll likely be able to tell if the display isn’t working, the unit doesn’t respond to your touch, and won’t start or produce any heat. In most cases, the unit’s internal lights likely won’t work either. 

Regardless, a faulty control board is a relatively complicated repair job that should only ever be performed by a trained appliance technician. 

And once again, disassembling your microwave represents a very serious risk of electric shock, which is exactly why we have professional, highly trained technicians available to help! 

Stop struggling with your uncooperative microwave, and contact us today!

Working with a Professional

If you have the skills and experience needed, follow the tips and tricks to troubleshoot your oven and hopefully, get it working again.

However, a lack of experience can result in mistakes. And mistakes can lead to more serious damage and possibly even personal injury. 

So for those pesky appliance problems that you can solve on your own, don’t hesitate to contact Littleton Appliance Pros today!