San Francisco microwave repair for countertop, built-in, and over-the-range units
A microwave that runs but doesn’t heat, sparks inside, or loses the light and fan on an over-the-range unit needs a look. We repair countertop, built-in and over-the-range microwaves in San Francisco homes, condos and rentals, plus Daly City and the Peninsula.
We work out of 140 San Pedro Rd, Daly City, CA 94014, and we come to you. There’s no walk-in shop. Call (415) 585-5900, text us, or email service@bayappliancerepair.com, Monday through Friday, 8:00 AM to 5:00 PM. Licensed under California BEAR #46247.
Common microwave problems we repair
- Runs but does not heat food or beverages (magnetron, diode, high-voltage capacitor, or fuse)
- Touchpad or membrane switch that will not respond while the display still lights
- Sparks, arcing, or burning smells from the cavity or waveguide cover
- Door that will not latch, close squarely, or start a cycle
- Turntable that will not rotate (drive motor, coupler, or roller ring)
- Over-the-range light or exhaust fan failures while the microwave still cooks
- Blank display, stuck keypad, or error codes after a power blip
Kitchens in the Mission, Sunset, Richmond, Noe Valley and SoMa are tight, and over-the-range units can be hard to reach. When you book, tell us countertop, built-in or over-the-range, and about any recent power problems.
When to call a technician
- Sparks or burning smell: Stop using the microwave, unplug if safe, and schedule service. Do not keep running a unit that arcs.
- Door will not latch: Door switches are safety-critical; forcing the latch can create a hazard.
- No heat with a running turntable: High-voltage components are not a DIY test. Leave magnetron and diode diagnosis to a technician.
- Over-the-range mounting concerns: Loose mounts or damaged cabinets need careful assessment before parts are ordered.
You can check that it’s plugged in, the door shuts all the way and the breaker hasn’t tripped. Don’t open the high-voltage section or probe anything live.
How a typical repair visit works
We note the brand and model, test the door switches, fuses, controls and heating circuit at your place, and go over repair or replace before ordering an expensive magnetron. We use OEM parts, and qualifying repairs come with a 90-day parts and labor warranty. Same-day service available, Monday to Friday, 8:00 AM to 5:00 PM.
Why call us in San Francisco
Bay Appliance Repair serves San Francisco neighborhoods from the Mission and Sunset to Richmond, Excelsior, Bayview, and nearby Daly City, with appointments Monday–Friday 8:00 AM–5:00 PM. Licensed California appliance repair (BEAR #46247). Call (415) 585-5900 or text us.
What some of our customers say
“microwave oven unit door would not open. At Bay Appliance great communication on timeline for repair and followed through on promised calls and texts. …”
“It was so easy to schedule the repair service ! Timely and clear communications. Leon did an excellent job repairing our dryer. We are very pleased.”
“Everything went well. They came when they said they would. They told me what they would do and I havent had any issues since then.”
Call (415) 585-5900 or book online
Mon–Fri 8am–5pm · $219 service call, free if you go with the repair · 90-day parts and labor on qualifying repairs
Countertop and over-the-range help across the San Francisco Bay Area
No heat, sparks, or a dead hood light and fan: we fix these from San Francisco studios to Daly City condos, Peninsula built-ins, East Bay kitchens and South Bay remodels.
What to expect on a microwave service call
We check the door switches, test for heat safely, look at the waveguide cover and stirrer if it’s sparking, and test the hood fan and light on over-the-range units. You hear the options before we order parts. Switches, fuses or controls fix a lot of microwaves when the cavity and door are good. Magnetron and high-voltage capacitor work is for a technician only. Never open the cabinet yourself. Appointments run Monday to Friday, 8am to 5pm.
Prep: note countertop vs built-in vs over-the-range, whether the turntable spins, and any sparking or smell. Unplug if you see scorch marks. Do not run the microwave empty as a “test,” and do not bypass door interlocks.
Built-in microwave repair in San Francisco
Built-in microwaves are part of the cabinetry, so a repair takes more planning than a countertop unit. We repair built-in microwaves with trim kits, microwave drawers under the counter, speed ovens and convection microwaves, and microwave and wall oven combination units in San Francisco and across the Bay Area.
- No heat or slow heating: usually a magnetron, high-voltage diode, capacitor or control fault. These parts hold a dangerous charge even when unplugged, so don’t open the cabinet yourself.
- Microwave drawers that won’t open or close: drawer motors, gears and door switches wear out, especially in busy family kitchens.
- Dead keypads and touch panels: common after steam exposure or a power surge on built-in and combination units.
- Combination wall units: when the microwave sits above a wall oven, we check whether the fault is in the microwave, the oven or the shared controls before ordering parts.
We’re factory authorized for GE (including Café, Monogram and Hotpoint), LG and Dacor, and factory trained on brands like Bosch, Samsung, Thermador, Wolf and KitchenAid. Text a photo of the model label to us when you book; on built-ins it’s usually inside the door frame or behind the drawer front.
Cities we serve for microwave repair
Related cooktop help: San Francisco stove, range, and cooktop repair. Broader coverage:
- San Francisco: studios, OTR hoods, tight galley installs
- Daly City, San Mateo, Redwood City, Palo Alto
- Oakland, Berkeley, Hayward, Walnut Creek
- Fremont, Santa Clara, San Jose
Stove repairs can often go on the same visit. See stove repair.
Repair vs replace and trust
A microwave with a good cavity and door is often worth fixing, especially an over-the-range unit, because you skip cutting a new cabinet opening. Replace it if the cavity is rusted through, the door doesn’t seal safely, or the high-voltage parts keep failing. We work under California BEAR #46247, Monday to Friday, 8am to 5pm, out of Daly City.
Countertop vs over-the-range: why install type changes the call
On a countertop microwave in a San Francisco studio, it’s often a door switch or a control. Over-the-range units add a hood light, grease filters and an exhaust fan, and those can fail while the microwave still heats, or the other way around. Built-in trim kits hide vents that matter when a unit runs hot or trips. Because the magnetron and capacitor store a charge, we treat every runs-but-won’t-heat call as a technician job. Our microwave won’t heat guide only covers safe checks. If the wall oven below is also acting up, mention it and we’ll try to fix both on the same visit.
Schedule microwave service
Related guides: stove, range, and cooktop repair, oven repair, dishwasher repair, all services, and appliance repair San Francisco. To book, call (415) 585-5900, use contact, or check hours and warranty on the FAQ. Tell us the problem, the type (countertop, built-in or over-the-range), the brand if you know it, and how we get in, and we’ll give you an arrival window.
Service calls only, no walk-in location. Daly City, CA 94014.
Call (415) 585-5900 or book online
Mon–Fri 8am–5pm · $219 service call, free if you go with the repair · 90-day parts and labor on qualifying repairs
Common questions
What usually breaks in a microwave?
Door switches fail most often and can stop the microwave from starting or blow its fuse. The magnetron, high-voltage diode and control board are the usual causes when it runs but doesn't heat. Touchpads, turntable motors and lights also wear out. If it sparks, smells burnt or won't heat, stop using it and unplug it.
What is the most expensive part of a microwave?
The magnetron, which generates the microwaves, and the main control board are usually the most expensive parts, followed by the high-voltage transformer. Never open the cabinet yourself: the high-voltage capacitor can hold a dangerous charge even after the microwave is unplugged. These repairs should be handled by a trained technician.
Is it worth repairing a 7 year old microwave?
It depends on the type. A basic countertop microwave is often cheaper to replace than to repair. Built-in and over-the-range models are frequently worth fixing at seven years, because replacing them means removal, mounting and matching trim. Common repairs include door switches, fuses, magnetrons and diodes. We explain your options and the exact cost first.
Do you repair built-in microwaves and microwave drawers?
Yes. We repair built-in microwaves with trim kits, microwave drawers, speed ovens and microwave and wall oven combination units. Tell us the type and model when you book.