Microwave Door Won't Close or Latch? Switches Are the Cause.

Microwave doors have multiple interlock switches and a mechanical latch. When one fails, the microwave either won't run, won't heat, or shuts off mid-cycle. Diagnosis is fast.

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Common causes

What's actually wrong

Primary door switch

Most common. The main interlock fails — microwave won't start at all.

Secondary / monitor switch

Safety backup. Failure can cause the unit to fail mid-cycle.

Door latch hooks broken

Plastic latch hooks can break. Door physically won't latch.

Door alignment

Hinge wear over time misaligns the door so the switches don't engage properly.

Before you call

Quick checks you can do

Open and close the door slowly. Listen for the latch click.
Look at the latch hooks for visible damage.

When to call us

Switches are cheap. We carry common Whirlpool, GE, Samsung, and LG door switches on the truck.

Call (631) 316-1756

Brands we service

Common on these brands

Whirlpool GE Samsung LG KitchenAid

Other microwave issues

Microwave Runs But Doesn't Heat? Magnetron, Diode, or Door Switch.