Whirlpool Microwave: not working

Possible Causes

Door latch / safety switches not actuating

How to Identify: Microwave does nothing when Start pressed, display may show door error or no response; ensure the door closes fully and listen for click.

Part: Door latch and door switches

Power supply / outlet issue

How to Identify: No lights or display, another appliance won’t work in same outlet; circuit breaker tripped or loose plug.

Part: Power cord / outlet / breaker

Faulty electronic control board

How to Identify: Microwave shows partial signs of life (lights/clock but won’t start or respond to commands; other causes ruled out.

Part: Main control board

Faulty thermostat or internal safety cutoffs

How to Identify: Microwave shows no power or shuts down immediately, may be overheating history; testing shows open thermostat.

Part: Thermostat / safety sensor

DIY Solutions

Unlatch / reset door and control lock

Easy 2-5 minutes

1. Open and firmly close the microwave door ensuring it latches fully.
2. Check the display for Control Lock icon; if present, follow model instructions to unlock.
3. Ensure Demo Mode is off as per your manual instructions.

⚠️ Safety First: Ensure door closes properly to safely operate microwave.

Check outlet power and reset breaker

Easy 5–10 minutes

Tools Needed: Small appliance or outlet tester (optional)

1. Unplug microwave and plug a lamp or similar device into same outlet to verify power.
2. Check household circuit breaker and reset if tripped.
3. Plug microwave directly into a known good outlet without extension cords.

Professional Repairs

Replace line or thermal fuse

Estimated Cost: $15 - $50 (parts)

Replace main control board

Estimated Cost: $100 - $300

Replace door switches or latch assembly

Estimated Cost: $30 - $100

Thermostat or internal sensor replacement

Estimated Cost: $30 - $80

When to Call a Professional

Internal component faults confirmed via multimeter (fuse, thermostat, board)

Microwave shows lethal internal component issues

Door switch or internal parts replacement beyond basic access

Preventive Maintenance

• Regularly clean door latches and seals: False door open conditions preventing start
  Frequency: Monthly
• Test control lock functionality periodically: Unexpected lock engagement during regular use
  Frequency: Quarterly

Frequently Asked Questions

Why is my Whirlpool Microwave not working?

Common causes include door latch issues, power supply problems, or a faulty control board.

How do I fix Whirlpool Microwave not working myself?

Try resetting the door latch, checking the outlet, or ensuring the control lock is off.

How much does it cost to fix not working?

Professional repairs can range from $30 for door switches to $300 for control board replacement.

When should I call a technician for not working?

If DIY solutions fail or if the issue involves complex repairs like the main control board.

References & Sources

• Microwave is Not Starting or Operating - Whirlpool Official
• Not Operating - Has Power - Built‑In Microwave - Whirlpool Official

Common Issues Reported by Users

• Control board failure (1 mentions)

User Suggested Solutions

1. Control board replacement

   Success rate: 50.0%