Best way To Fix Panasonic Microwave that is constantly Heating Up


As a Panasonic microwave owner, I often encounter challenges such as putting food in the microwave, setting the timer, waiting for it to heat up, and seeing the food still cold or barely warm.

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I am sure many microwave users face this problem; I’ve experienced this a few times with my Panasonic microwave.

At first I’m often scared because this isn’t normal, but then I have to push myself to learn how to solve the problem without help.

Today I will show you how to troubleshoot and repair your Panasonic microwave oven without heating problems. I will explain the possibilities, solutions and steps to take. Don’t worry;

This is not difficult to do; As long as you follow all my instructions, your Panasonic microwave oven will be repaired in no time.

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Content Disclaimer notice

Before we get started, I want to give you a disclaimer. Using a microwave can be dangerous if you’re not careful.

The microwave oven’s high voltage capacitor has a dangerous electrical shock that can be fatal even after the microwave is turned off.

Therefore, before opening the microwave, you must clean it and wear protective gloves and glasses. You should not touch the wires or parts of the microwave unless you know what you are doing.

If you need more confidence or experience repairing your microwave oven, find service or contact Panasonic Customer Service.

Possible Causes of microwave over heating and Solutions

There are many reasons why your Panasonic microwave oven may not heat up. Here are some common problems and their solutions:

1. Defective door lock switch: The door lock is a safety device that prevents the microwave oven from starting when the door is opened.

The microwave will only heat when one or more switches are in place. To fix this problem, you should test the switch using a multimeter and replace the faulty switch.

2. Card is damaged: The card is the brain of the microwave oven. Controls power, timers, displays and heating elements. If the control board is damaged, the microwave will not heat.

To resolve this issue, carefully inspect the control board for signs of damage such as burn marks, cracks, or broken parts. If the control board is damaged it must be replaced.

3. Bad magnets: Magnets are used to enable microwaves to heat food. If the magnetron breaks, the microwave will not heat.

To solve this problem, the magnetron needs to be tested with a multimeter and replaced with a new one if it fails. Magnetrons cannot be repaired; If they burn, you have to send them back.

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4. The high voltage diode is a high voltage diode component responsible for converting the alternating current (AC) of the power supply into direct current (DC). If the high voltage diode is faulty, the microwave will not heat.

To solve this problem, you need to check the high voltage diode with a multimeter and replace it if it is damaged.

5. High voltage capacitor failure: The high voltage capacitor is what stores electricity in the magnetron. If the high voltage capacitor does not work, the microwave will not heat.

To solve this problem you need to release the high voltage capacitor and test it with a multimeter. If the high voltage capacitor is not working, it must be replaced.

How to fix Panasonic microwave not heating issue

Now that you know the possible causes and solutions, let me show you the best steps and tips on how to do it.

Fix Panasonic microwave not heating issue. I’ll use the magnetron as an example, but you can use the same steps for other devices.

Step 1: Unplug the microwave and carefully remove the cover.

Before leaving, the microwave needs to be unplugged from the power source and the door removed.

You will need to use a screwdriver to remove the screws holding the cover in place. Be careful not to touch any wires or parts inside the microwave.

Step 2: Find the magnet and cut the wires

The next step is to find the magnet and cut the wires. A magnetron is usually a silver or black cylinder with two terminals and a cooling fan attached to it.

The best way to do this is to use needle nose pliers to remove the wires from the terminals. Be careful not to touch the terminals or cables with bare hands.

Step 3: Test the magnetron with a multimeter

Step 3 is to test the magnetron with a multimeter. You’ll want to set your multimeter to the lowest setting and touch the probe to the magnetron’s terminals.

If the multimeter shows a low reading (less than 1 ohm), the magnetron is a classic example. If the multimeter shows a high reading (above 1 ohm) or no reading at all, the magnetron is faulty.

Step 4: If the magnet breaks, replace the magnetron.

Step 4, replace the magnet if the magnet is broken. It is best to purchase a new magnetron suitable for your Panasonic microwave oven model. The model number is on the microwave label or user manual.

You need to install the new magnetron by reversing the steps to remove the old magnetron. Fix the magnetron properly and secure the wires to the corresponding terminals.

Step 5: Restart and test the microwave

The final step is to restart and test the microwave. You need to put the cover back on and screw it into place. After that you should plug in the microwave and try heating some food. If the microwave heats the food, you have successfully repaired your Panasonic microwave oven and it is not a heating problem.

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If the microwave still does not heat up, there may be other faults that need to be replaced.

In Conclusion

Learning how to solve this problem means that when you encounter a problem again, you can easily fix it yourself without having to call a professional.

One of the things you need to do for me is to make sure you follow the steps that I tell you; you can solve problems, choose a microwave oven, save money and time.

However, if you do not feel comfortable or unsure about repairing your microwave oven, you should seek assistance or contact Panasonic Customer Service. Remember to be safe and careful when using your microwave.

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