Whirlpool Microwave Wmh2175Xvb2 Is Not Heating

Title: Whirlpool Microwave WMH2175XVB2 Is Not Heating

Have you ever found yourself in a situation where your trusty microwave suddenly decides to go on strike and refuses to heat your food? It can be frustrating, especially when you’re in a rush or simply craving a warm meal. One common culprit behind this issue is the Whirlpool Microwave WMH2175XVB2. In this article, we will explore the possible reasons why your microwave is not heating and provide you with some troubleshooting tips to get it back in working order.

1. Understanding the basics of microwave heating

Before we dive into the specifics of the Whirlpool Microwave WMH2175XVB2, let’s first understand how microwaves work. Microwaves use electromagnetic waves to heat food by agitating the water molecules present in it. These waves are generated by a magnetron, which is the heart of the microwave. When the magnetron fails to function properly, it can result in a microwave that doesn’t heat.

2. Check the power source

The first step in troubleshooting your Whirlpool Microwave WMH2175XVB2 is to ensure it is properly connected to a power source. Check if the power cord is securely plugged into an outlet and that the outlet itself is functioning. Sometimes, a loose connection or a tripped circuit breaker can cause the microwave to stop heating.

3. Examine the door switch

Microwaves are designed with safety features, and one of them is the door switch. This switch ensures that the microwave only operates when the door is securely closed. If the door switch is malfunctioning or not engaging properly, it can prevent the microwave from heating. Inspect the door switch and make sure it is not damaged or misaligned.

4. Test the high voltage diode

The high voltage diode in your microwave plays a crucial role in converting the electrical current into the high voltage required for heating. If the diode is defective, it can disrupt the heating process. To test the diode, you will need a multimeter. Follow the manufacturer’s instructions to check if the diode is functioning correctly.

5. Check the magnetron

As mentioned earlier, the magnetron is responsible for generating the microwaves that heat your food. If the magnetron is faulty, it will not be able to produce the necessary waves, resulting in a microwave that doesn’t heat. Replacing a magnetron can be a complex task, and it is recommended to seek professional assistance if you suspect a faulty magnetron in your Whirlpool Microwave WMH2175XVB2.

6. Inspect the thermal fuse

The thermal fuse is a safety device that protects the microwave from overheating. If the thermal fuse is blown, it can disrupt the heating process. Locate the thermal fuse in your microwave and use a multimeter to check its continuity. If the fuse is blown, it will need to be replaced.

7. Clean the interior

Sometimes, a dirty or greasy interior can affect the performance of your microwave. Food particles or residue can interfere with the microwave’s ability to generate heat. Regularly clean the interior of your Whirlpool Microwave WMH2175XVB2 with a mild detergent and a soft cloth to ensure optimal performance.

8. Check the control board

The control board of your microwave contains various components that regulate its functions. If the control board is malfunctioning, it can prevent the microwave from heating. Inspect the control board for any visible signs of damage, such as burnt circuits or loose connections. If you suspect a faulty control board, it is best to consult a professional technician for repairs.

9. Test the capacitor

The capacitor in your microwave stores electrical energy and releases it to the magnetron when needed. A defective capacitor can disrupt the heating process. To test the capacitor, you will need a multimeter. Follow the manufacturer’s instructions to check if the capacitor is functioning correctly.

10. Seek professional assistance

If you have exhausted all the troubleshooting steps and your Whirlpool Microwave WMH2175XVB2 still refuses to heat, it may be time to seek professional assistance. A certified technician will have the expertise and tools to diagnose and repair complex microwave issues.


A non-heating microwave can be a frustrating experience, but with the right troubleshooting steps, you can potentially identify and resolve the issue with your Whirlpool Microwave WMH2175XVB2. From checking the power source to examining the magnetron and other components, taking a systematic approach can help you get your microwave back in working order. Remember to prioritize your safety and consult a professional if needed. Happy microwaving!