Microwave not heating and no power: Causes and solutions

oven cleaning
Image Credits: Sunny Appliance Repair

If you are someone who is facing the issue of microwave not heating and no power then there could be several reasons behind this. To ensure that your microwave oven gets back to normal and starts heating, then you may have to first check what the issue is and then try to resolve it. Afterall a microwave can easily be termed as the lifeline of any kitchen space and without it, you may feel slightly handicapped. The following are the main causes and solutions of microwave not heating and no power.

1. Fuse of microwave may be blown

The first possible cause of microwave not heating and no power could be a blown off fuse.  The fuse is basically a safety device which stops the flow of the electrical current to the appliance. If the fuse is blown then the microwave oven won’t work and won’t heat.  You may have to replace it in order to bring your oven back to working condition.  The fuse can be tested using a multimeter for continuity.  If you find no continuity, replace the microwave fuse.

Recommended Microwave Thermal Fuse Thermostat:

  1. General Electric WB21X10148 Microwave Thermostat

  2. Samsung DE47-20060A Microwave Thermostat Switch

  3. Frigidaire 5304464094 Microwave Thermostat Unit

2. Fault with the microwave door switch

If the door switch of your microwave is faulty, then this could be another reason why it may not be heating and showing no power.  The door switch is basically a small sized switch which closes when the door is closed. If the switch has gone bad, then the microwave won’t turn on and hence wont heat. To test the switch, you can use a multimeter. If you find it bad, make sure you get it replaced soon.

Here are some of the recommended microwave door switches that you can replace yourself:

  1. LONYE SZM-V16-FD-63 Microwave Oven Door Micro Switch Replacement for LG GE Starion Microwave RE1(Normally Open)

  2. LONYE W10727360 & W10269458 & W10269460 Microwave Switch Replacement for Whirlpool Microwave SZM-V16-FC-61 SZM-V16-FC-62 SZM-V16-FC-63

  3. KW3A Microwave Oven Door Switch 16A 125/250V Door Interloc(Normally Open & 3 Insert Foot)

  4. Microwave Door Switch SZM-V16-FA-63 by Podoy Compatible with LG GE Starion WB24X829 3B73362F PS3522738 SZM-V16-FD-63 AP2024337

microwave door switch

Image Credits: Flickr

3. A slammed microwave door

Do you recall slamming your microwave door? Well if yes then this too could be a reason of it showing no power and not heating.  Slamming the door can blow away the switch which leads to no power and no heating.  For this you will have to check the fuse and remove and replace it if the need be.  Check the fuse using a multimeter as mentioned above for continuity. On finding no continuity, replace the fuse.

READ ALSO:  Microwave buttons not working: reasons and solutions

Some of the most popular door latch replacements are:

slammed door

Image Credits: Mr Right

4. Check the GFCI outlet

In some cases of microwave not heating and no power, the problem could be with the GFCI outlet.  If the GFCI outlet is tripped on the electrical outlet, then you may not be getting any power and as a result no heating.  Make sure you check the breaker which controls the outlet and see to it that it is not tripped.

Now that you know the main causes of microwave not heating and no power, you may be able to resolve the issue. In most cases, it requires replacement of one or more parts, which an electrician can handle really well. There is no dearth of electricians who can repair microwave for you and the best ones can be found by contacting Mr Right in case microwave does not heat.

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