The microwave door switch assembly is a microwave oven protection part, which plays an important role in the device for safety. Generally speaking, there are three micro switches in the oven door structure of the microwave oven, which are primary, secondary latch switches, and safety monitor switches.

Microwave door switch banner

How does the Microwave Micro Switch work?

Among them, the primary and secondary safety switches will affect the connection and disconnection of the power supply of the induction cooker when the furnace door is opened and closed. Because the door opened or closed will affect the connection and disconnection of the power supply. For example, if any one of the switches shows the door is not in an inactive state, the microwave oven won’t start to work. So that it can avoid microwave leakage to protect the user.

Meanwhile, in the microwave door switch assembly, there is also a monitor switch that is used as another protective barrier to make sure safety. Its main function is to prevent microwave leakage when the upper and lower safety switches from being damaged and short-circuited.
In this way, even if the state of the furnace door cannot be correctly displayed due to damage or failure of the two-door switches, there is still a safety switch for protection.

Microwave Diagram

Microwave Door Switch Diagram

As the picture show, we can easy to understand the microwave door switch diagram and the microswitch position. Generally, the monitor switch has a different circuit diagram from the primary and secondary switches.

Microwave Door Switch Diagram

How to remove microwave door switch?

  • Firstly, turn off the microwave oven power to make sure safety
  • Secondly, remove the 2 screws installed on top of the microwave grill, and then remove the grill.
  • Thirdly, find the microwave door switch. Generally, you will see the three microswitches if you lift the control panel up.
  • Fourthly, remove the connection. Usually, most of the connection is linked through the microswitch terminal with the wire by a connector but some of them will use the soldering way by an electric iron. On one hand, you can remove the connecting wire with the connector easily. On the other hand, you need an electric iron if you meet the soldering way.
  • Fifthly, you can remove the microswitch from the pin through the installing hole.

How to change microwave door switch?

With the steps of removing, I think you can know how to change the microwave door switch easily. You just need to follow the above step by flashbacking, and then you will know it. So this chapter will not write too many details.

How to test microwave door switch?

Generally, we can use the multimeter to link to the microswitches for testing. And we can test the primary and secondary switches through the oven door open and close. With the door open, place the multimeter leads on the connectors on the primary switch first. When closing the door the multimeter should produce a beep if the switch is good.
For the monitor switch testing, you will hear a “Beep” sound when the door is closed, which means it is good.

Where to buy microwave door switch

Nowadays, it is more and more convenient to buy things from all over the world. And there have 2 ways to buy the switches you need. Buying the microwave door switch from a local store. In this way, you don’t need to wait the handling and shipping time but the selection is limited and the price may be high.

On the other hand, we can buy from the website. In this way, you can have many options. For example, if you need company use, you can buy from Alibaba, Made In China, Global Sources, and Some company website, like our website. Because you will need to do some communication about the model selection, and then the manufacturer will provide the datasheet or sample for your confirmation. This will take some time but you will get a suitable switch or other brand alternative switch, that will help you to save much cost every year.