From heating leftovers to cooking brand new dishes, microwave ovens are an integral part of kitchens. However, when these appliances stop heating, it is cause for concern. While major faults require professional intervention for safety and efficiency, there are small problems that can be fixed through systematic troubleshooting. If you’re looking for ways to repair a microwave oven not heating, the following blog goes over everything from checking the circuit breaker to inspecting the door switch and more, helping you restore your faulty microwave.

Fixing Moody Microwaves Like A Pro: What Every Kitchen Expert Should Try

Is your food not heating? But the light inside is on, and the turntable is turning, so what gives? Before you panic and contact an appliance expert, there are a few things you can try to fix the issue yourself. Here is a look at a few troubleshooting techniques to repair malfunctioning microwave ovens.

Read along to learn what you should do.

Check The Power Source

A lot of the time, when you press buttons or tap on the control panel and the appliance won’t turn on, it’s due to the switch being loose. Simply double-check that the plug is firmly connected to the outlet to bring your machine to life.

Check The Electric Panel

If that didn’t work, the problem might be a bit bigger. Don’t worry. We don’t mean that big. Go to your home’s electrical panel and check the microwave’s breaker. If it’s tripped,  simply turn it “off”, wait a few seconds, and flip it back to the “on” position, and you should be good to go.

Correct The Mode

Another reason for a microwave oven not heating your food could be that it’s in the control lock or demo mode. This happens when you’re cleaning the control panel and don’t want to accidentally start the cooking cycle. If the lights are turning on and the turntable’s working, try changing the mode to activate the magnetron.

Reset Power Levels

Okay, if that wasn’t it, there are a few more things we can try to restore your kitchen appliance. Maybe the power level is too low for your specific task? For example, most microwave ovens use the lowest setting to warm up vegetables, but need one of the highest settings to heat soups. Check the power level to fix a slowly heating microwave.

Check For The Delayed Start Setting

Depending on the model of microwave oven you have, you might have accidentally engaged the delay start function. This happens when microwaves allow you to set the timer, power level, and then set the time when you’d like it to start cooking. Go to your microwave’s settings to disable this function and try to start it up again.

Reset The Microwave

If none of that worked,  maybe it’s time for a complete reset. Unplug your microwave oven for at least five minutes. Then plug it in again so that the control board is reset. This should solve whatever glitch was preventing the appliance from working properly.

Replace Damaged Door Switch

Microwaves don’t start operating when the door isn’t properly closed. If you’re certain the door is closed, it might be a damaged door switch. Another indicator of this issue is if the light won’t turn on or off in tandem with the door. If that’s the case, you should contact an expert ASAP to replace the switch.

Replace High Voltage Fuse

If you have already replaced the door switch, try looking at the fuse. A blown fuse is a common issue and one that can easily be fixed. Simply replace it yourself or have someone fix it to restore power to the magnetron.

Contact An Expert

Finally, if nothing works, it’s probably a much bigger internal fault. It might be a damaged magnetron, a faulty diode, or even the main control board. Have an experienced and skilled microwave expert have a look and replace the part to restore the functionality of your microwave oven.

Conclusion

To conclude, a microwave that won’t heat does need a professional for efficient and durable repairs; however, there are a few things that homeowners can try to remedy the problem on their own. Start by checking if the connection is secure, followed by double-checking the mode and looking through things like the fuse and door switch. If none of that works, it’s time to contact an expert to assess and replace the diode, control panel, or magnetron. We hope this blog answered the question ‘how to repair a microwave oven not heating’. For further information, please drop us a line.

FAQs

Should I repair or replace my microwave?

If it’s old and something major has broken, replacing it is more cost-effective.

What is the lifespan of a microwave oven?

With the right maintenance, it can easily last between 10-15 years.

What is the average cost of microwave repair?

Depending on the extent of the damage, microwave repair can range between $100 and $200.