What are the three switches in a microwave?
Microwaves include three switches located behind the control panel: primary, secondary and monitor switch all actuate to keep the microwave from cooking the kitchen while the door is open.
What does the microwave monitor switch do?
The purpose of the monitor switch is to act as a safety to prevent the magnetron from being energized while the door is open. The door latch and switches in microwaves are designed so that, if everything is working correctly, the monitor switch should never be closed at the same time as the interlock switches.
Can a microwave door switch be repaired?
Luckily, you can repair your broken microwave switch assembly at home.
How do I know if a microwave door switch is bad?
Common symptoms related to a faulty secondary door switch include: microwave will not turn/shut off, or the microwave will not heat properly. NOTE: Before you begin this repair, first make sure your microwave is unplugged, and that your capacitor is discharged.
Where is the microwave door switch?
Microwave door switches are normally mounted to a bracket near the door latch. Also, microwaves usually have three or four door switches. There is a latch (sometimes referred to as a hook) attached to the inside of your microwave door that comes in contact with and activates the door switch when the door is closed.
How do you know if your door switch is bad?
Usually a bad or faulty door lock switch will produce a few symptoms that can alert the driver of a potential problem.
- Door lock functions intermittently.
- Broken door lock button or rocker.
- Door locks do not function.
How much does it cost to fix a microwave door switch?
Microwave Repair Cost by Type of Repair
| Replacement Part | Average Costs (Labor Included) |
|---|---|
| Door Switch | $50 – $100 |
| Diode | $50 – $125 |
| Filter | $50 – $125 |
| Handle | $75 – $125 |