Appliance Repair in Toronto: Why Your Microwave Isn’t Getting Hot

Appliance Repair in Toronto: Why Your Microwave Isn’t Getting Hot

Trying to figure out why your microwave isn’t getting hot can be very difficult. This is especially true if you do not know what signs to look out for. These handy devices have become one of the most commonly used appliances in homes today. The vast array of functional advantages for both cooking and warming purposes make them a must-have. Sadly, no matter how much care you give your microwave, it may still develop faults.

This can be very frustrating as microwaves always seem to pack up at the most inopportune moment. Not to worry, we are going to help you figure out why your microwave isn’t getting hot. There are several reasons why your microwave may not be heating your food. In this article, we are going to walk you through how to identify these causes. 

Furthermore, we will give you some tips to help you repair your microwave. However, before we continue, you must note a few things. Your microwave can retain dangerous amounts of electricity in its high voltage capacitor, even after you’ve unplugged it.  So, you must exercise caution when dealing with the microwave. If you do not feel up to it, you can contact an appliance repair service in Toronto to help you fix it. That being said, let us look at why your microwave isn’t getting hot.

Possible Reasons Your Microwave Isn’t Getting Hot

There are three common reasons a microwave may fail to heat the food you put in it. More often than not, you may end up needing appliance repair in Toronto due to one of these three problems.

A faulty high voltage diode

Your microwave will not get hot if its high voltage diode is faulty. This is the component that is directly responsible for supplying voltage to the magnetron. To paint you a better picture, the high voltage diode converts AC power to DC, thereby doubling that voltage. 

So, if the diode burns out, then it will not be able to supply the necessary power to the magnetron. This means that the magnetron cannot work, and as such, the microwave will not get hot. If the high voltage diode is the problem, most times, you will see it visibly burnt out.

Therefore, inspect the diode. If it has burnt out, you will have to replace it. However, if your diode does not look burnt, it may still be the problem. To confirm that it is not, you will have to verify with a multimeter. 

Your diode should only have continuity in one direction when you reverse the leads. If it does not, then it is faulty and will need replacing. Except, you know how to repair a microwave, it may be better to leave the replacement of the diode to professional appliance repair services in Toronto.

A faulty door switch

Your microwave is designed to only work when you shut its door. To this effect, most microwaves have between three to four door switches. These door switches will only provide power to other components when the door is in the close position. 

When you open the door, the switches automatically cut off power. If any of these door switches fail, your microwave will neither start nor heat up. So if you are wondering why your microwave is not getting hot, then this may be the problem. To confirm if this is the problem, you will have to inspect these switches.

The door switches are located inside the microwave cabinet. It is the hooks or latches on the door that activates them. To get to these switches:

  • You need to unplug your microwave.
  • Then remove the cabinet. 
  • The door switches will have wires connected to terminals marked (C) for Common and (NO) for Normally Open.
  • You need to check the switches for continuity using a multimeter or by pressing the actuator button.

If there is no continuity, then you need to replace the switch in question.

Related Article: Cost of Microwave Repair in Toronto


A faulty magnetron

The magnetron is the component that uses high current DC power to generate the microwaves that heat your food. If the magnetron is defective, then your appliance will not get hot. In some cases, other functions may operate normally, but the microwave will not heat. 

Other times, the entire unit may blow a fuse and will not work at all. Whichever the case may be, if your magnetron blows out, you will have to get another one. To ascertain that the magnetron is the problem, you will have to remove the cabinet. Once again, we must remind you to be careful because lethal amounts of electricity can be in your microwave capacitor. 

So, first, disconnect your unit and discharge the high voltage capacitor. Next, you need to locate the magnetron and remove its two connecting wires. Test it for continuity with a multimeter. Ideally, 2-3 ohms of resistance should be between its terminals.  If this is not the case, then your magnetron needs replacing. Should your multimeter tests not yield any result, then you need to call in an appliance repair expert in Toronto.

Final Take

Now that you know why your microwave isn’t getting hot, you should contact a professional to help you repair it. Except you have adequate knowledge on how to repair a microwave, fixing it yourself can be very dangerous. Thankfully, we have a team of experts ready to help you fix your device.

Get help repairing your microwave today! Call 1-866-860-8666 today!