How to Change a Microwave Bulb

Jul 29, 2023, 11:30am

In a microwave, the bulb illuminates the cavity when a heating program is launched. It may be slightly burnt or the filament inside may be cut.

It will therefore be necessary to replace it if you notice that there is no more light in the microwave when it is in operation.

The bulb is located behind the control faceplate, usually on the right side. To access it, you will need to remove the cover of the device.

A microwave’s interior light is one of those features that we often take for granted until it’s gone. The small bulb that illuminates your food as it’s being heated allows you to monitor the progress of your meal without having to open the door repeatedly. Like any other bulb, it can burn out over time and needs replacement. In this article, we will guide you through the process of changing a microwave bulb.

How to Change a Microwave Bulb


Before beginning, remember that safety is a priority when working with electrical appliances. Always unplug your microwave before starting any repairs. If your microwave is still under warranty, it’s better to have any replacements or repairs done by a professional service center to avoid voiding the warranty.

Tools You Will Need:

  1. Screwdriver (both Phillips-head and flat-head)
  2. A new microwave bulb

Step-by-Step Procedure

1. Unplug the Microwave

First and foremost, disconnect the microwave from its power source. This prevents any accidental electrical shocks while you are working.

2. Remove the Microwave’s Outer Casing

The bulb in most microwaves is located on the interior side, but it is usually accessed from the back or side of the appliance. Unscrew the screws holding the outer casing and carefully remove it. Remember to keep the screws in a safe place as you will need them to reassemble the microwave.

3. Locate the Bulb

Now, locate the bulb. It’s usually housed in a small compartment, and its base is typically visible.

4. Remove the Old Bulb

Carefully unscrew the old bulb. Make sure not to apply too much force as the bulb can shatter. If the bulb is hard to reach or seems stuck, you can use a pair of pliers for better grip.

How to Change a Microwave Bulb

5. Insert the New Bulb

Screw in the new bulb. Ensure that it’s of the same wattage as the original bulb to prevent any electrical issues. Do not over-tighten the bulb as this might damage it.

6. Reassemble the Microwave

After replacing the bulb, put the outer casing back in its place and screw it back on securely.

7. Test the New Bulb

Finally, plug the microwave back into the power source and turn it on to see if the new bulb is working properly.

Replacing a microwave bulb is a relatively easy process that can save you a trip to the appliance repair shop. However, always remember to prioritize safety when dealing with electronic appliances. If you have any doubts or the process seems complicated, it’s always best to contact a professional.