Kitchen with a built-in microwave above a wall oven

Microwaves

Microwave Repairs

Countertop and built-in microwaves. Many faults are repairable — but because of the high voltages inside, they must be handled by someone who knows how to work on them safely.

About this service

How we approach microwave repairs

A microwave heats food with a magnetron, powered by a high-voltage circuit made up of a transformer, capacitor and diode. Door interlock switches make sure it can only run with the door closed, while the turntable motor, light and control board handle the rest.

A microwave that runs but doesn’t heat usually has a fault in that high-voltage circuit. One that’s completely dead has often blown its internal fuse — frequently because a door switch has failed.

Built-in microwaves are usually worth repairing because replacing them can mean matching the cabinet opening. For countertop models, we’ll tell you honestly if a new one makes more sense.

What we work on

  • Countertop microwaves
  • Built-in microwaves
  • Microwave-grill combos

Common problems

Microwave faults we see most often

The symptom points us in the right direction — testing confirms the cause.

  • 01

    Runs but doesn’t heat

    Usually the magnetron, high-voltage diode, capacitor or transformer.

  • 02

    Sparking inside

    A burnt waveguide cover, food splatter, damaged interior paint or metal inside. Stop using it.

  • 03

    Turntable not turning

    A worn coupler, roller ring or failed turntable motor.

  • 04

    Completely dead

    Often a blown internal fuse caused by a faulty door interlock switch.

  • 05

    Touchpad not responding

    A worn membrane keypad or a control-board fault.

  • 06

    Door won’t close or latch

    Broken door hooks, springs or latch switches.

Safety tip

Never open a microwave’s outer casing yourself. It contains a high-voltage capacitor that can hold a dangerous charge even when the microwave is unplugged. If it sparks, stop using it.

Built-in microwave in a white kitchen

The repair process

What happens when we repair your microwave

  1. Check symptoms safely

    We confirm the fault with a water heat test where it’s safe to run.

  2. Discharge and inspect

    The high-voltage capacitor is safely discharged before internal testing.

  3. Test components

    Door switches, fuse, diode, capacitor, magnetron and turntable motor are tested.

  4. Explain and quote

    You decide — repair or replace — with the price in front of you.

  5. Repair and heat test

    We confirm it heats evenly and the door switches work correctly.

Why choose CLEARFIX

Why customers book CLEARFIX for microwave repairs

  • High-voltage safety

    Capacitors are discharged and door switches tested on every job.

  • Honest advice

    If a new countertop microwave costs less than the repair, we’ll say so.

  • Built-in specialists

    Built-in units are removed and refitted carefully.

FAQ

Microwave repairs: your questions answered

Still unsure? Send us the details or a WhatsApp with a photo of the problem.

For built-in models, usually yes — a replacement has to fit the same opening. For basic countertop models, it depends on the fault and the cost of a new one. We’ll quote so you can compare.

It’s a small panel inside the cavity, usually on a side wall. If grease builds up on it, it can burn and cause sparking. It’s replaceable.

The high-voltage capacitor can store a dangerous charge even after the microwave is unplugged. Leave internal work to a technician.

That usually points to the high-voltage circuit — the magnetron, diode or capacitor. It needs testing to confirm which part has failed.