Why Your Bosch Microwave Is Not Heating and What You Can Do About It

You love your Bosch microwave. It’s a posho wosho appliance that can do more than just heat up your leftovers. It can bake, roast, and crisp your food with convection mode. It can automatically adjust the time and power with sensor mode. It can even defrost your frozen food with ease.

But what happens when your Bosch microwave is not heating? When you put your food in and press start, nothing happens. Or worse, the food comes out cold and soggy. What’s going on? And how can you fix it?

Don’t panic. There are many possible reasons why your Bosch microwave is not heating, and most of them are easy to solve. In this article, I’ll explain some of the most common causes and solutions for this problem.

The main reasons why your Bosch microwave is not heating are: faulty door switches, blown fuses, defective magnetron, faulty diode, or bad capacitor. You can troubleshoot these issues by checking the switches, testing the fuses, replacing the magnetron, diode, or capacitor, or calling a professional for help.

How to check the door switches of your Bosch microwave

One of the most common reasons why your Bosch microwave is not heating is because of faulty door switches. These are small devices that tell the microwave when the door is open or closed. If they are damaged or misaligned, they can prevent the microwave from starting or heating.

To check the door switches of your Bosch microwave, you will need a screwdriver, a multimeter, and some basic electrical knowledge. Here are the steps to follow:

• Unplug the microwave from the power source and remove the outer cover with a screwdriver.
• Locate the door switches near the door latch. There should be three of them: one primary switch, one secondary switch, and one monitor switch.
• Disconnect the wires from each switch and label them for easy reconnection later.
• Set your multimeter to continuity mode and test each switch individually. To do this, touch one probe to each terminal of the switch and press the button on the switch. The multimeter should beep or show zero resistance when the button is pressed and show infinite resistance when the button is released.
• If any of the switches does not show these results, it means that it is faulty and needs to be replaced.
• If all of the switches show these results, it means that they are working properly and you can move on to the next step.

How to test the fuses of your Bosch microwave

Another common reason why your Bosch microwave is not heating is because of blown fuses. These are small devices that protect the microwave from power surges or short circuits. If they are blown, they can cut off the power supply to the microwave or its components.

To test the fuses of your Bosch microwave, you will need a screwdriver, a multimeter, and some basic electrical knowledge. Here are the steps to follow:

• Unplug the microwave from the power source and remove the outer cover with a screwdriver.
• Locate the fuses inside the microwave. There should be two of them: one line fuse and one thermal fuse. The line fuse is usually near the power cord and looks like a glass tube with metal caps on both ends. The thermal fuse is usually near the magnetron and looks like a metal disc with two wires attached to it.
• Disconnect the wires from each fuse and label them for easy reconnection later.
• Set your multimeter to continuity mode and test each fuse individually. To do this, touch one probe to each terminal of the fuse. The multimeter should beep or show zero resistance if the fuse is good and show infinite resistance if the fuse is blown.
• If any of the fuses is blown, it means that it needs to be replaced with a new one of the same rating and type.
• If both of the fuses are good, it means that they are not the cause of the problem and you can move on to the next step.

How to replace the magnetron of your Bosch microwave

The magnetron is the heart of your Bosch microwave. It is the device that generates the microwaves that heat up your food. If it is defective, it can cause your microwave to not heat or to heat unevenly.

To replace the magnetron of your Bosch microwave, you will need a screwdriver, a pair of pliers, and a new magnetron that matches your microwave model. Here are the steps to follow:

• Unplug the microwave from the power source and remove the outer cover with a screwdriver.
• Locate the magnetron inside the microwave. It is usually a large metal box with two wires and a cooling fan attached to it.
• Disconnect the wires from the magnetron and label them for easy reconnection later.
• Remove the screws that hold the magnetron in place and carefully pull it out of the microwave.
• Be careful not to touch the terminals of the magnetron, as they may still have some residual charge that can shock you.
• Dispose of the old magnetron safely and responsibly. Do not throw it in the trash or recycle bin, as it may contain hazardous materials.
• Install the new magnetron in the same position and orientation as the old one. Secure it with the screws and reconnect the wires.
• Replace the outer cover and plug in the microwave.

How to replace the diode or capacitor of your Bosch microwave

The diode and capacitor are two components that work together with the magnetron to create the microwaves that heat up your food. The diode converts the alternating current (AC) from the power source to direct current (DC) for the magnetron. The capacitor stores and releases electrical energy for the magnetron. If either of them is faulty, it can cause your microwave to not heat or to make loud noises.

To replace the diode or capacitor of your Bosch microwave, you will need a screwdriver, a pair of pliers, a multimeter, and a new diode or capacitor that matches your microwave model. Here are the steps to follow:

• Unplug the microwave from the power source and remove the outer cover with a screwdriver.
• Locate the diode and capacitor inside the microwave. They are usually near the magnetron and look like small cylinders with wires attached to them.
• Disconnect the wires from each component and label them for easy reconnection later.
• Set your multimeter to resistance mode and test each component individually. To do this, touch one probe to each terminal of the component. The multimeter should show a low resistance in one direction and a high resistance in the other direction if the component is good. If the multimeter shows no resistance or infinite resistance in both directions, it means that the component is bad and needs to be replaced.

• If either of the components is bad, replace it with a new one of the same rating and type. Secure it with the wires and make sure that the polarity is correct.
• Replace the outer cover and plug in the microwave.

How to call a professional for help with your Bosch microwave

If none of the above solutions work, or if you are not comfortable or confident with doing them yourself, you might want to call a professional for help with your Bosch microwave. A professional can diagnose and fix the problem quickly and safely, and save you from further frustration and damage.

To call a professional for help with your Bosch microwave, you can contact the Bosch customer service or find a local authorized service center near you. You can also check online reviews and ratings to find a reputable and reliable technician in your area.

Before you call a professional, make sure that you have the following information ready:

• The model number and serial number of your microwave. You can find them on a label inside the microwave door or on the back of the appliance.
• The date and place of purchase of your microwave. You might need to show your receipt or warranty card to prove that your microwave is still under warranty or eligible for service.
• The description and symptoms of the problem. Be as specific and detailed as possible to help the professional understand and diagnose the issue.

FAQs

Here are some frequently asked questions about why your Bosch microwave is not heating and what you can do about it:

Q: How do I know if my Bosch microwave is still under warranty?

A: You can check if your Bosch microwave is still under warranty by looking at your receipt or warranty card, or by contacting the Bosch customer service. The warranty period for Bosch microwaves varies depending on the model and country of purchase, but it is usually one year from the date of purchase.

Q: How much does it cost to repair a Bosch microwave?

A: The cost to repair a Bosch microwave depends on several factors, such as the type and extent of the problem, the availability and price of the parts, and the labor fees of the technician. The cost can range from $50 to $300 or more, depending on these factors.

Q: How long does it take to repair a Bosch microwave?

A: The time it takes to repair a Bosch microwave depends on several factors, such as the type and complexity of the problem, the availability and delivery of the parts, and the schedule and availability of the technician. The time can range from a few hours to a few days or more, depending on these factors.

Q: How can I prevent my Bosch microwave from not heating?

A: You can prevent your Bosch microwave from not heating by following some simple tips, such as:

• Use the microwave properly and according to the manual instructions.
• Do not overload or overcook your food in the microwave.
• Do not slam or force the door of the microwave.

• Clean the microwave regularly and remove any food spills or grease.
• Do not expose the microwave to moisture or extreme temperatures.
• Do not use metal or other unsuitable materials in the microwave.
• Do not attempt to repair the microwave yourself if you are not qualified or experienced.

Q: Where can I find more information about Bosch microwaves?

A: You can find more information about Bosch microwaves by visiting the Bosch website or contacting the Bosch customer service. You can also check out Presstocook.com for more reviews and tips on kitchen appliances.

Conclusion

Bosch microwaves are great appliances that can make your cooking experience more fun and convenient. However, sometimes they can stop heating and cause you frustration and disappointment. There are many possible reasons why your Bosch microwave is not heating, and most of them are easy to solve. You can troubleshoot and fix the problem yourself by following some simple steps, or you can call a professional for help if you are not comfortable or confident with doing it yourself.

I hope this article has helped you understand why your Bosch microwave is not heating and what you can do about it. If you have any questions or comments, feel free to leave them below. And don’t forget to check out Presstocook.com for more reviews and tips on kitchen appliances. Thanks for reading!

A Message From Dale

Hi there, I’m Dale from www.presstocook.com and I’m a kitchen appliance nerd. Yes, you heard me right. I’m obsessed with kitchen appliances. Why? Because I have spent over a decade working in and running busy Asian restaurants in London. I have seen and used every type of kitchen appliance under the sun, from microwaves and ovens to blenders and rice cookers. I know the good, the bad, and the ugly of kitchen appliances.

I also have some fancy certifications that show that I’m not just a nerd, but a smart nerd. I am certified in HACCP, Food Safety, Health and Safety, and Restaurant Management. All CPD certified and Endorsed by the institute of hospitality. These certifications show that I know how to cook like a pro, avoid any disasters, and run a restaurant like a boss.

So, you can trust me when I say that I know what I’m talking about. I love cooking and I love helping you find the best kitchen appliances for your needs. That’s why I created Presstocook.com, a website where I share my honest reviews and tips on kitchen appliances.

So, if you want to know why your Bosch microwave is not heating and what you can do about it, keep reading. I’ll tell you everything you need to know about this common problem and how to fix it. And don’t worry, I’ll make it fun and easy for you.