Introduction
Samsung and LG microwaves also rely on door switches to ensure the appliance operates only when the door is closed. These switches are part of the microwave’s safety system.
If the switch fails, the microwave may refuse to start or may stop unexpectedly.
How Door Switches Work in Samsung and LG Microwaves
When the microwave door closes, the latch presses the switches mounted inside the front frame.
These switches signal that the door is securely closed and allow the microwave to operate.
If the switch does not activate correctly, the microwave may behave as if the door is still open.
For a full explanation of the component, see:
Complete Guide to Microwave Door Switch
Common Symptoms
Typical symptoms include:
• Microwave will not start
• Microwave stops during operation
• Microwave display works but heating does not begin
These symptoms often indicate a faulty door switch.
Testing the Switch
Testing the switch with a multimeter is the best way to confirm the problem.
How to Test a Microwave Door Switch
Related Guides
Signs a Microwave Door Switch Is Bad