Microwave Repair in La Jolla

Built-in, drawer, or countertop. We safely repair high-voltage microwave systems.

Repair My Microwave

Professional Microwave Oven Service

It's the most convenient appliance in the kitchen, until it stops heating. Many people think microwaves are disposable, but high-end built-in and drawer models found in La Jolla homes are significant investments worth repairing. La Jolla A-Tech offers specialized repair for these sophisticated units.


Our technicians are trained to handle microwave repairs safely. Microwaves contain high-voltage capacitors that can hold a lethal charge even when unplugged. We possess the proper discharge tools and testing equipment to service magnetrons, high-voltage diodes, and door interlock switches safely. Never attempt to repair a microwave yourself!


We specialize in premium brands like Sharp (the maker of most drawer units), Wolf, Viking, and Thermador. Whether your turntable stopped spinning, the keypad is unresponsive, or it's sparking inside, we can diagnose the issue and restore your convenience quickly.

Modern built-in microwave heating food

Common Microwave Problems

Safe diagnosis for all heating and power issues

Not Heating

Lights on, timer counts down, but food is cold? The magnetron or high-voltage diode has likely failed. We replace these core components to restore heating power.

Sparks Inside (Arcing)

Scary flashes of light? Stop using it! It's usually a burnt waveguide cover or exposed metal rack support. We replace the waveguide to stop the dangerous arcing.

Turntable Not Spinning

Uneven heating results. The turntable motor has burned out or the coupler is broken. We replace the motor from the bottom of the unit.

Touchpad Not Working

Buttons not responding? The membrane switch or control board has failed. We install new OEM control panels to restore full functionality.

Door Won't Open/Latch

Broken door hooks or stuck buttons are common. We repair the latch mechanism and interlock switches that ensure the unit won't run with the door open.

Unit Runs Briefly Then Stops

This often indicates a failing door switch or a problem with the cooling fan causing the thermal cutout to trip. We trace the safety circuit.

Service for All Microwave Styles

We repair the high-end units that complete your custom kitchen.


Microwave Drawers

These under-counter marvels (mostly made by Sharp) rely on complex belt drives and localized sensors. We are experts in their unique sliding mechanisms.


Built-In / Convection

Combination microwave/convection ovens (like GE Advantium or Miele Speed Ovens) have heating elements and fans. We repair both the microwave and specialized baking components.


Over-the-Range (OTR)

These dual-purpose units also vent your cooktop. We repair the exhaust fans and grease filters along with the cooking components.

Technician repairing a built-in microwave oven

Brands We Service

We fix premium and standard high-speed ovens

Category Brands Specialty Repairs
Drawer Units Sharp, Wolf, Viking, Thermador (mostly Sharp-built) Drawer glides, belt replacement, sensor calibration
Speed Ovens Miele, GE Advantium, Bosch, Jenn-Air Convection heaters, turntable motors, magnetron tubes
Standard Built-In KitchenAid, Frigidaire, Whirlpool Door switches, control panels, capacitors
Countertop Panasonic, GE, LG Inverter technology boards (Panasonic specific)

Frequently Asked Questions

Is it safe to repair a microwave?

Only for a professional. The high-voltage capacitor stores 2000+ volts even when unplugged. Do not open the case yourself. Call us for safe, certified repair.

Is it worth fixing a $100 countertop microwave?

Usually no. But for a $1500 built-in or a $1200 drawer unit, repair is definitely the smart choice, costing a fraction of replacement.

Why did my microwave start sparking?

Usually it's metal (check for foil!) or a food splatter on the waveguide cover that carbonized. We can replace the cover and clean the cavity easily.

My microwave drawer opens but won't close. Help!

Don't force it! There's likely a blockage in the tracks or a problem with the assist motor. Forcing it can break the gears. Call us to safely realign it.

Do you fix the peeling paint inside?

If the paint peels, the metal underneath reflects waves and sparks. We can sometimes touch it up with special microwave-safe paint, but extensive rust means the unit is unsafe.

Why is my microwave so loud?

A loud hum usually means the magnetron is failing or the high-voltage diode is shorted. A grinding noise is likely the fan motor or turntable motor.

Customer Reviews

★★★★★

"Our Sharp microwave drawer stopped heating. A replacement was going to be $1200. La Jolla A-Tech replaced the magnetron for way less. The tech was fast and knew these drawers inside out."

- Karen B., La Jolla Shores

★★★★★

"My GE Monogram built-in microwave had a stuck door button. The technician dismantled the door and replaced the latch spring. He saved us from having to rip out the cabinet trim to install a new one."

- Steve M., Bird Rock

★★★★★

"Safety was my concern when ours started sparking. The tech arrived on time, found a burnt waveguide cover, replaced it, and tested the unit for leaks. Very reassuring professional service."

- Dr. Patel, University City

Get Your Kitchen Back to Normal

Certified repair for built-in and high-end microwaves.

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