How do you know if a microwave diode is bad?

Whether it is shorted or open, a defective diode will most likely show some sign of defect. Defective diodes will usually emit an electrical burning smell, signifying its defectiveness. Also, it may have split in two, or it may exhibit a burned crack, or possibly even a blistered spot.

Will a microwave work without a diode?

The microwave’s diode converts alternating current (AC) to direct current (DC), which doubles the voltage and powers the magnetron that heats the food. Without the diode, the magnetron would not receive enough voltage to do its job.

Are all microwave diodes the same?

Not all diodes will work with every microwave oven model. Fortunately, Repair Clinic makes it easy to find the exact diode you need. Start by entering the full model number of your microwave in the Repair Clinic website search bar.

How much does a microwave diode cost?

Microwave Diode Cost Microwave diodes cost $5 to $25, plus $50 to $100 to replace it. If you have to replace the magnetron, a new diode may come as part of the package.

How much does it cost to replace a diode in a microwave?

Is it worth replacing a magnetron in a microwave?

No matter how new your microwave or if there’s only one problem, if the magnetron is out then you might as well replace the entire appliance. The magnetron is the heart of a microwave that actually makes the micro-waves. Replacing it is about equal to the cost of buying a whole new microwave, sometimes even greater.

How do you discharge a microwave diode?

Using a screwdriver with an insulated handle, essentially you touch the tip to a capacitor and drag it slowly towards the one across from it. This creates a short circuit that results in the electricity being discharged. You may need to do this multiple times.

Is it worth it to fix microwave?

If your microwave is relatively new and the repair costs less than replacing it, the fix is worth it. But are microwaves worth repairing if something major is broken? Probably not. Consider getting a replacement appliance for about $100, which should work for 7 to 10 years.