Over-the-Range Microwave Repair in Rockford, IL
Updated
Short answer


Runs but does not heat
Whirlpool lists misset functions first (Control Lock, Demo Mode, a power level set too low), then broken parts such as the magnetron, a door switch or the high-voltage diode (Whirlpool). Those are high-voltage parts, which is why this is a job for a technician rather than a screwdriver.
The FDA's door rules
The FDA says not to operate a microwave oven if the door does not close firmly or is bent, warped or otherwise damaged, and to stop using one that keeps running with the door open (FDA).
Over-the-range units are also the range hood
An over-the-range microwave vents the cooktop below it, and its metal grease filters need cleaning. GE says filters in range hoods and over-the-range microwaves should be cleaned about every six months in normal use (GE Appliances).
What the repair usually is
- Door switch: $75 to $150
- Fuse or diode: $75 to $130
- Turntable motor: $80 to $150
- Control panel or keypad: $100 to $200
- Magnetron: $100 to $250
From Angi. HomeGuide notes countertop microwaves are often cheaper to replace than repair, while built-ins are usually worth fixing (HomeGuide). InterNACHI gives a microwave about 9 years (InterNACHI).
Common questions
Over-the-Range Microwave Repair: questions
Why does my microwave run but not heat?
Whirlpool says to rule out Demo mode, Control Lock and a low power level first. After that it is usually the magnetron, a door switch or the high-voltage diode, which a technician should handle.
Is it safe to use a microwave with a damaged door?
No. The FDA says not to operate a microwave oven if the door does not close firmly or is bent, warped or otherwise damaged.
How much does microwave repair cost?
Angi's 2026 guide: $100 to $200 for most repairs, about $175 on average, and $100 to $300 for an over-the-range unit.
Other appliances
Over-the-Range Microwave trouble?
Tell us the appliance, the brand, the model number if you have it, and what it is doing. A local technician calls back with a time and a price before any work starts.