A Kenmore microwave turned on but did not heat (over-the-range unit).
What our technicians usually find: the magnetron, the high-voltage diode or capacitor, or a door switch.
Microwave repair in Mount VernonTwo Kenmore microwaves are in the requests below: one ran without heating and the other ignored its buttons. We repair microwaves like them across Colchester.
Schedule service in Colchester
Monday - Friday: 8 AM to 10 PM
Saturday: 8 AM to 10 PM
Sunday: 10 AM to 10 PM
Diagnostic visit: $75, or $115 for a double unit.
Credited toward your repair when you approve the quote.
A Kenmore over-the-range unit from Huntington, in the requests listed here, turned on but didn't heat. The magnetron, diode or capacitor is the usual cause, though a door switch can do it too, and the high-voltage parts are tested only with the power off and the capacitor safely discharged.
A Kenmore from Springfield, in another request, didn't respond to its control panel. On many microwaves the keypad is a thin membrane that wears through or loses its connection to the board, and a new touchpad, or a new board if that has failed, brings it back.
Kenmore microwaves were built for Sears by other manufacturers, so many share parts with Whirlpool, LG or other brands. The model number tells us which.
Wipe spills off the touchpad with a barely damp cloth. Liquid that seeps under the membrane is one way keypads fail.
A Kenmore microwave turned on but did not heat (over-the-range unit).
What our technicians usually find: the magnetron, the high-voltage diode or capacitor, or a door switch.
Microwave repair in Mount VernonA Kenmore microwave did not respond to the control panel.
What our technicians usually find: the touchpad or control board.
Microwave repair in SpringfieldFrom online booking requests in 2025; customer details are kept private. “What our technicians usually find” is the common cause of that problem, confirmed by our team. The technician confirms the cause on site before quoting.
The checklist our technicians follow on every visit is on the Microwave Repair page.

Before you book in Colchester, VA, these guides explain the most common symptoms, which checks are safe to try yourself, and when a technician should take over. All guides.
We also provide microwave repair in Woodbridge, VA, and serve homeowners in Lorton, VA, Mount Vernon, VA, Springfield, VA and Fairfax Station, VA.
This location is part of our microwave repair coverage across the DC metro area — see all appliance services in Colchester, VA.
Neighborhoods we regularly cover in Colchester, VA: Mason Neck, Gunston and Crosspointe.
We're based in Alexandria, about 14 miles from Colchester. Same-day and next-day appointments are available when the technician route has open windows; call or book online for the earliest option. Appointments cost the same on weekdays, evenings and weekends - our hours run 8 AM to 10 PM Monday through Saturday and 10 AM to 10 PM on Sunday, all at one standard rate.
Many microwave repairs are completed in a single visit once the technician has diagnosed the fault and confirmed the parts on hand. If a specific part has to be ordered, we schedule a short return visit to finish the job.
Door switches and diodes are inexpensive; a magnetron costs more but usually still beats replacing a built-in unit and matching the cabinetry. We quote after diagnosis, before any work - and the high-voltage interior is exactly why this is never a do-it-yourself estimate. The diagnostic visit is $75 for a single appliance or $115 for a double unit (such as a double wall oven, washer-dryer combo or stacked laundry), and the fee is credited toward the repair if you approve the quote. Labor starts at $200 and stays there on about 9 in 10 repairs; more complex jobs can reach $450. Parts are extra and listed in the quote. Typical price ranges by appliance are in our appliance repair cost guide.
Common calls include microwave not heating, turntable not moving, sparking inside, door switch failure, control panel issue and unusual noise. The exact cause is confirmed during diagnosis.
Often. If the display works but no keys respond, the touchpad or its ribbon connection is the likely part. If the display is dead too, a fuse, a door switch or the control board is more likely. Reset it at the breaker for a minute first.
Look at the model number on the label inside the door frame or on the side of the cavity. Its first three digits are a code for the company that built it, and that tells us which parts fit.
Only two checks are safe: the outlet and breaker, and whether the door closes fully. Stop there - the high-voltage capacitor inside holds a dangerous charge even when the microwave is unplugged, which is why this is the one appliance we tell everyone never to open.