Panasonic Microwave Code H98: Causes & 6 Ways to Fix it

Panasonic microwaves are durable and functional appliances with a range of practical and intriguing programs and functions that make your life in the kitchen a little easier. However, like all appliances, they don’t last forever and might present issues from time to time.

The H98 code is a common error code on a Panasonic microwave, indicating a problem with the magnetron component.

While this might be frustrating to deal with, it’s an easy problem to diagnose and requires only a few simple and straightforward steps to fix. So keep reading to find out everything you need to know!

Panasonic Microwave Code H98
The Panasonic microwave code H98 indicates that there is an issue with the magnetron, which could be a result of the component being damaged, burning out, an issue with the power supply, or wiring of your appliance.

Causes Of Panasonic H98 Error Code

Before you attempt to solve the problem on your Panasonic microwave, it’s crucial that you understand what might be causing it in the first place. Here are the 3 main causes of the H98 code:

1. Magnetron Failure

The H98 code is often caused by a failure or malfunction of the cavity magnetron. The magnetron is the main component of your microwave oven – the part that starts the microwaves by generating a magnetic field and powering the microwave function.

If this component fails, your microwave will show the H98 code and likely won’t work at all, and you might need to replace the component in order to fix the issue.

2. Power Supply Issues

Your problem might be caused by an issue with the power supply to your microwave, which is a more straightforward problem to solve.

This could be caused by a faulty power relay, capacity, or other electrical components. If you have electrical knowledge and experience, you can attempt to solve this yourself; otherwise, contact a professional for a diagnosis.

3. Wiring or Connection Problems

Finally, if you have power but your microwave still isn’t working, you might have loose or damaged wiring connections on your microwave or even in your main power supply at home.

This can also trigger the H98 code, and you’ll need to check out all the wiring to ensure that everything is in good condition and connected correctly.

How To Fix Panasonic H98 Error Code

Now that you know what’s going on with your appliance, you can start taking the necessary steps to fix it. Before contacting an appliance service center, try the steps below to see if you can clear the error code.

1. Power Cycle the Microwave

First, you can try the simplest solution: resetting the appliance. Simply turn the microwave off and unplug it from the power source; wait a few minutes to allow all the power to drain before you plug it back in and turn it on.

Sometimes, a simple power cycle can reset the microwave’s internal system and clear a glitch that might have been causing the error code. If you’re lucky, this simple step makes your microwave function again.

However, if the code still shows and your microwave won’t work, move on to the next steps.

2. Reset the Microwave

A similar troubleshooting technique is to perform a reset. Certain models of microwaves have a physical reset button located at the back of the appliance.

If your model has this button (you can consult the user manual to find out whether or not your model has one), press it and hold it for a few seconds. This will perform the same function as the power cycle discussed above and might resolve any glitches.

3. Check the Power Source

You need to ensure that the power outlet you have plugged your appliance into is working correctly.

You can do this by plugging in a different appliance or device (your cellphone charger is a good option) into the same outlet to see if it’s functioning properly. If it works, then you know there is nothing wrong with the outlet.

You could also try a similar tactic by plugging your microwave into a different outlet to assess whether or not you get the same error code. If you do find that the outlet is faulty, you can contact a professional electrician.

4. Inspect the Power Cord

Faulty or loose wiring could be causing the error, so examine the power cord for any visible damage or wear and tear, such as frayed edges or worn-out insulation. You should also ensure the cord is connected securely to both ends – the microwave and the plug adapter.

If you notice any issues with the cables, then this might be the problem. In this case, having your wires repaired or replaced should restore your appliance to regular operation in no time.

5. Check For Obstructions or Foreign Objects

Random objects can sometimes become stuck inside the microwave cavity, causing issues with the functionality of the microwave. Foreign objects, especially items like metal utensils or aluminum foil, can damage the magnetron, cause interruptions, and trigger the error code.

If anything is stuck inside your microwave, remove it and try using it again.

6. Consult the User Manual

Finally, remember to refer to the user manual that came with your microwave. All Panasonic microwave models are a little different, and you might need to read through the entire microwave guide to find some information that might help you.

Look for any information regarding error codes or the magnetron, and assess whether any of the steps might help. If none of these steps help, it may be time to contact customer service or a professional technician for a diagnosis and the next steps.

Preventing the Panasonic H98 Error Code

Prevention is better than cure, and it’s always a good idea to make sure you’re taking good care of your appliances. If you’ve dealt with this problem in the past and want to make sure it doesn’t happen again, here are some preventative measures you can take:

1. Follow the Operating Instructions

First, to take good care of your appliance, ensure you only use it according to the operating instructions. Take the time to familiarize yourself with the user manual, the different functions of your microwave, and the dos and don’ts of how to use it properly.

Pay close attention to the guidelines for power levels, cooking times, and any safety precautions you might need.

2. Only Use Microwave-Safe Containers

As you’ll notice in your user manual, certain materials aren’t safe to put in your microwave – specifically metal, as this can cause sparking in your microwave and damage the magnetron.

Make sure to keep any metal cutlery and tin foil out of your microwave at all times, and stick to using only microwave-safe containers and dishes. This will help prevent the magnetron from damage and preserve your dishes that might not be microwave safe.

3. Clean Regularly

Keeping the interior of your appliance is essential too. Make sure to wipe it down regularly to remove food particles, spills, and grease that might have splattered inside.

Always use a mild detergent, warm water, and a soft washcloth to wipe it down and prevent build-up. Avoid any harsh chemicals or abrasive cleaners that might damage the coating in your microwave.

4. Don’t Operate Empty

Running your microwave without anything inside it can be dangerous because an excess of heat can build up and damage the magnetron. Make sure that when you start your microwave, there is always something inside of it.

5. Close the Door Gently

You should also be sure to use your microwave gently. Do not slam the door shut.

This will help to ensure the alignment of the door hinges and switching stays intact and that you don’t accidentally cause any damage to the internal components of your appliance.

6. Routine Maintenance

Finally, you can schedule routine maintenance checks for your microwave device. This can be done on a regular basis, around once per year.

However, you should call a service agent immediately if you notice any issues like strange noises, electrical smells, or performance issues.


How much does it cost to repair the magnetron in my microwave?

You will need to contact Panasonic or a third-party service to receive an accurate estimate of the repair cost.

However, repairing this component is often more expensive than simply purchasing a new microwave, so you must weigh up your options if this is the issue.

Can I still use my microwave when the H98 error shows?

Most users find that when the microwave shows an H98 code, the microwave does not operate, and you are not able to use it.

However, should your microwave still be operational with the code shows, it is not recommended that you run it, as there might be safety complications involved. Therefore, it’s best to have it repaired or replaced first.

How long should a microwave’s magnetron last?

The lifespan of your microwave can vary depending on many factors, including the model, how often you use it, maintenance, and more.

However, users have reported that a magnetron can last around 5 to 10 years when used with proper care.

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