Microwave Won't Start
Controls ignore Start, the pad is locked, or a door/key error is on the display. Start with these microwave-specific checks before replacing parts: Look for LOC or lock icons — hold Clear/Stop 3 seconds before assuming a door switch failure. Likely error codes for this symptom include LG LOC, LG DOOR, Samsung SE, Whirlpool F2E0, GE SE.
First things to check
- Look for LOC or lock icons — hold Clear/Stop 3 seconds before assuming a door switch failure.
- Confirm the door closes flush; over-the-range models also need the bottom latch aligned.
- Match your symptom to the error codes and compatible parts listed below.
- Replace the faulty part or call a technician if the fix requires sealed systems or live voltage work.
Related error codes
FAQ
Why is my microwave wont start?
Controls ignore Start, the pad is locked, or a door/key error is on the display.
What should I check first?
Look for LOC or lock icons — hold Clear/Stop 3 seconds before assuming a door switch failure. Confirm the door closes flush; over-the-range models also need the bottom latch aligned.
What error codes are related to this problem?
LG LOC, LG DOOR, Samsung SE, Whirlpool F2E0, GE SE
When should I call a technician?
Call a pro if you smell burning or gas, see sparking, or the same code returns after replacing the suspected part.
When to call a professional
Call a technician if you smell gas, see sparking, or basic checks don't resolve the issue.
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