As more Americans are changing their eating lifestyle by having meals in their homes, and so is the use of microwaves. Microwave usage is indispensable such as in using boiling water or re-heating a cup of coffee to cooking full meals! And how upsetting it is when you found your microwave is not heating up well before going to an important office meeting…with no breakfast.

Before we proceed, please be advise that microwaves are one of the most dangerous appliances to repair, so if you are not a trained technician do not attempt to open the back of the microwave even if you are sure you have unplugged it from the outlet. Only qualified and professional electrical technicians at Appliance Doctor should be allowed to perform microwave repairs.

Reminder: if you are in luck check the warranty period of the microwave, usually found at the back with a sticker or find the manual that comes along with it upon delivery. If it is still covered by warranty period, better call Appliance Doctor Inc. rather than tinkering the microwave for it will void its warranty service. If the warranty period lapses, you will need a local electrical technician to troubleshoot it.

This article is limited for informative reasons only, and not for do-it-yourself (DIY) instructive method. If your microwave is not heating up, check only three important component parts: diode, door switch, and magnetron, these essential electronic parts make up most of the microwaves heating process.

Defective/Burnt Power Diode.
A power diode is an electronic device that converts electrical current to direct current and doubles the voltage passing through which powers up the magnetron device for conversion to microwave energy.
Another is diode burns out. Due to high voltage or fluctuating current diodes also burns. The professional electrical technicians at Appliance Doctor Inc. can easily spot if a diode burned. Either a defective or burnt diode happens, when you will be microwaving your stuff then you will be hearing a buzzing noise. The food may not be too much hot, but still, be cooking. One should not neglect if this happens, contact a professional technician for repair scheduling, the sooner the better.

Malfunctioning Door Switches.
Microwaves have three to four-door switches that are connected to the heating circuitry. It activates after closing the door, a safety mechanism against microwave hazards like harmful radiation if the door is open. If any of the switches is defective, the heating process will warm up only, or it will not work at all. Usually cause by overused, worn out faulty parts, or too much slamming of microwave’s door. Appliance Doctor can identify these problems if the light inside the microwave does not turn off when the door is closed. And if you happen to notice, call Appliance Doctor Inc. to fix the issue earlier before it goes worst.

Broken/Burnt Magnetron.
A magnetron is the main electrical device responsible for microwave’s heating process. It uses high voltage electrical power to generate microwave frequencies in order to heat up the food. Usually, the magnetron is broken due to long-time use, or faulty magnetron switch. This happens if you notice when the microwave is working normally but makes a whirring sound while heating up the food, and discovered that the food is still cold. Either the magnetron may have malfunctioned or burned due to unstable electrical voltages. It signals to call Appliance Doctor Inc. for troubleshooting.

While we are hoping some microwave tidbits of information might help you, however, it is still advisable to call the professional electrical technicians for your safety and that of your family.

Request an appointment with Appliance Doctor Inc., the doctor of appliances for Southwest Floridians since 1993 at https://www.sickappliances.com/contact-us/, or you may call our service area offices at239-992-0505 (Estero/Bonita Springs), 239-936-0111 (Fort Myers), 239-540-9500 (Cape Coral), 239-434-7546 (Naples) 239-642-0505 (Marco Island) and 239-732-0111 (East Naples).

We specialize in all types of microwave repair services and other appliance repairs like range and oven repair, refrigerator repair, freezer, and ice maker repair, washer and dryer repair, dishwasher repair, and garbage disposal repair. For other details, you can visit our website at https://www.sickappliances.com/.