Samsung microwave is not heating or has stopped working

When a microwave isn't starting or heating, the most common reason is because it is in Demo mode. This mode is used on retail showroom floors to show off microwaves without activating their magnetron. The microwave also won't heat if it does not have enough clearance or ventilation. If the microwave turns on but does not heat, checking a few settings and the installation will help resolve the issue. This applies to both regular microwave heating and convection heating.

Microwave turns on by itself

If your microwave turns on by itself after you close the door you may need to clean the door, check the latch, or ensure that the door is closed all the way. But if your cooktop lamp will not turn off, then it may just be wet from recent cooking. Follow this guide to get things back to normal.

Vent fan is weak on Samsung over-the-range microwave

The vent fan on your over-the-range microwave is useful for keeping smoke and steam clear from the microwave. It will even turn on automatically if the microwave is getting too hot. But if the fan strength isn't strong enough to hold up a napkin, you may feel like it's not working. Fortunately, there's an easy way to tell.

Samsung microwave is not working

If your microwave is not working or has stopped working, there could be a few reasons why. A microwave that is not turning on or is turning off by itself is usually caused by overheating or a low power supply. However, if your microwave doesn’t heat up at all, it could be in Demo mode. You can check your microwave for signs of overheating and power

Condensation forms on the microwave door

Your microwave's door isn't completely sealed so when condensation forms on the outside, some of it may get inside or between the glass panes. The most common form of condensation on the inside comes from the food you're cooking.

Plastic film or cardboard inside Samsung microwave

All microwaves have a magnetron cover, although the appearance will vary between models. On many Samsung microwaves, the magnetron cover may look like a piece of cardboard and you might wonder why it's there. You may also see some plastic film on the microwave's door on some models. This guide will explain which items you can remove and which ones

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