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Hamilton Beach Microwave Not Heating – Reasons & Solutions

Hamilton-Beach-Microwave-Not-HeatingSometimes while using a Hamilton Microwave Oven, that suddenly stops heating.

You must be tried unplugging it and waiting, resetting it, replacing the fuse (F1), checked the high voltage transformer (T4), or has an error code of E1.

It still does not heat. The light comes on, but no heat comes out of the vents. What may be the reason? Does it have any solution?

We are here with the most probable reasons and their solutions.

What Would Be The Reasons And Solutions For Hamilton Beach Microwave Not Heating?

Every appliance has many different parts, including microwaves, which can malfunction and other problems that may prevent your microwave from heating properly.

One way to determine whether or not these parts are defective or broken is by using a multi-meter or continuity tester and checking each part individually for continuity before replacing it with another part from inside your microwave oven itself.

This problem is not only associated with Hamilton Beach but may be faced by any other manufacturing company, such as GE.

Top Reasons Microwave Is Not Heating — Microwave Oven Troubleshooting – YouTube

Turntable Motor


This is the most common problem with all microwaves, especially if you have used it for a long time. If this part is defective, then you will experience that your microwave does not rotate.



One of the most common reasons is that the fuse in your microwave has blown out. The fuse is a safety device that protects the rest of the parts in your microwave if there is any short circuit in the system. This means that all electrical current has been cut off from the appliance and cannot operate until you replace the fuse.

You can purchase a replacement fuse at any hardware store or home improvement center and then remove the old one and install the new one. However, other issues may need to be addressed if something else is needed before you can use your microwave again.

Touch-pad Control


If this part is defective, you will experience your microwave not responding to any button. The touch-pad control can be replaced easily. You have to open the door and remove the cover of the button panel by removing six screws from it.

Then disconnect all wires from the buttons and replace them with new ones. You can buy touch-pad controls online or from local electronic stores near you. I recommend buying them online as they are much cheaper than repair shops or local shops.

Defective Transformer


The next most common problem is a defective transformer. This can be diagnosed by checking the resistance of each winding and comparing it to the resistance values listed in the service manual.

You should also check for continuity between one winding and another and between each terminal and ground. If there is no continuity, the transformer should be replaced with one with an identical rating (watts, volts, etc.).

Board Magnetron


If the above two fixes do not resolve the problem, then the board magnetron may need to be replaced. This is a more difficult repair and should only be attempted by an experienced technician with specialized test equipment. The average cost to replace this part is $65 – $75, depending on the model of the microwave.

Diode Or Transformer

Diode Or Transformer

If none of these parts are bad, there could also be an internal short circuit in one or more components on your board, such as a diode or transformer. These parts are more expensive to replace and require specialized tools and training to fix properly.


This is also a very common problem in all microwaves; your microwave won’t heat if it is defective.

Microwave Oven Door Lock Mechanism

If this part is defective, you will experience that your microwave door needs to lock properly or unlock properly when needed.

Microwave Oven Sensor Circuit Board – Error Code E1


If this part is defective, there will be no heating in your oven, or else it will take forever to heat the food item, or else it may keep on heating even after the food item has reached its required temperature.

The solution can be simple unplug your device, let it cool, and then try to restart it. If it persists, you need to call a serviceman.

Inverter Board

The inverter board may also cause the problem. You will have to replace this part if it has been damaged or burnt out by overheating. In addition, check for any loose connections or broken wires that may cause the problem.

Loose wires or switch contacts

The device won’t heat up if the wires are loose or the switch contacts are dirty. In this case, check the voltage of your device and get a new fuse if needed.

Exhaust Fan Operation


If your exhaust fan is not working, then it’s possible that your food will not heat up properly. This problem can be fixed by cleaning out all the dust and dirt in your exhaust fan or changing its blades.

Low power

Check if there is enough power supply in your microwave using an electrical tester (multi meter). Make sure that there isn’t any damage in any part of your wiring system and that there aren’t any loose connections in any part of your appliance.

If Anything Doesn’t Work

Suppose neither of these tests indicates a problem with your microwave’s touch-pad control or transformer. Further testing will be required to determine if it is still under warranty or if the issue is due to another part failure, like a diode or magnetron tube (which may require replacing both parts at once).

Is the Cord Damaged Or Broken?

If the cord of your microwave is damaged or broken, it will not heat food properly. In this case, you need to replace the cord with a new one as soon as possible. The cord may also be damaged due to frequent use, which can damage other parts of the appliance, so it’s better to replace it as soon as possible.

The Door Switch Might Need To Be Fixed

The door switch controls the power supply to the heating element, so when it stops working, the whole unit stops functioning properly; hence, food does not get heated up in time. To fix this issue, open up the appliance and check if there are any loose wires or burnt wires near or around the door switches in your Hamilton Beach microwave oven and fix them accordingly so that they work properly again.

Food Pieces Stuck In Vents


Another common reason for Hamilton Beach Microwave Not Heating is that some food might be stuck in the vent, preventing it from heating up properly. It would help if you cleaned all the vents so that air could flow freely through them.

If you have cleaned all vents and the problem remains, there could be something wrong with the heating element inside your microwave oven.

If this happens, you need to replace it as soon as possible because if you don’t do so, it will also damage other parts of your microwave oven, and you will have to replace these parts too!

You need to check these things before unnecessarily calling a service member and spending money on his visit.

Defective Thermostat


The thermostat regulates power to the heating element, and its failure will prevent the microwave from producing heat.

Defective High Voltage Transformer (HV transformer)

This component converts low-voltage electricity from your home’s electrical supply into high voltage needed to run the microwave’s magnetron tube. If it fails, there will be no heating in your appliance.

Fault Codes of Hamilton Beach Microwave

Every microwave has some error codes which indicate the fault in the machine. Every code is specific for each error. Some frequently occurred fault codes of Hamilton Beach Microwave are described below;

  • F0 indicates that the stuck OFF/CLEAR touch-pad switch
  • F1 indicates that the relay stuck on the circuit board
  • F2 control sense oven temperature
  • F3 shows that the temperature sensor circuit open
  • F4 shows that the temperature sensor circuit shorted
  • FC indicates a Door latch error
  • FD indicates Shorted meat probe, jack, or wires
  • FF shows a loss of door lock circuit protection

First Aid Solutions

In an experienced voice: The power supply must be checked first. Make sure the power cord is plugged into a live socket and the socket is working properly. Check for any blown fuses or tripped breakers in the circuit panel of your house. You can also check for any loose connections in the wiring or the power cord.

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