Not Heating Food
The timer counts down and the plate turns, but the food stays cold. This usually means a failed magnetron, diode, or high-voltage capacitor.
Microwave Repair Cardiff
Is your built-in or combination microwave sparking, not heating, or completely dead? Microwaves store lethal voltages even when unplugged, so our trained local Cardiff engineers always do their best to diagnose the fault quickly and fix it safely, getting it back in your kitchen as soon as we can. We work on all the major brands, with a fixed price agreed before any work begins.
- Safe & Certified Repairs
- Built-in & Combi Models
- Premium Brands
Safe, Expert Repairs in Cardiff
Built-in and combination microwaves are a significant investment, often costing several hundred pounds to replace and fitted neatly into a kitchen tower or cabinet. When one stops heating, starts sparking, or goes completely dead, a professional repair is usually far more sensible than replacing the whole unit.
Our Cardiff engineers are trained to work safely on microwave ovens, which store dangerously high voltages in their capacitors long after being unplugged. We diagnose the fault with the correct equipment, fit quality parts, and test the appliance thoroughly before we leave.
We cover Cardiff and nearby areas such as Roath, Pontcanna, Rumney, Llanrumney and Creigiau, focusing on premium built-in and combination models where a repair protects the value of your fitted kitchen.
Common Microwave Faults We Fix
Sparking Inside
Often caused by a burnt-out waveguide cover (the small cardboard-like piece inside) or exposed metal and damaged enamel in the cavity.
Plate Won't Turn
If the glass turntable has stopped spinning, food heats unevenly. This is a straightforward fix involving a new turntable motor.
Completely Dead
Blowing the main fuse in your consumer unit, or showing no signs of life. Usually a blown internal fuse or faulty door interlock switches.
Buttons or Display Not Working
An unresponsive keypad or blank display often points to a faulty membrane touch panel or control board.
Grill or Fan Not Working (Combi)
On combination models, a dead grill element or convection fan stops it browning and crisping - both are repairable parts.
Safety Warning
Never attempt to open the casing of a microwave yourself. The internal capacitor stores thousands of volts of electricity which can be fatal, even long after the appliance has been unplugged from the mains. Always use a qualified engineer.
Signs You Need a Repair
- Food stays cold even after a full heating cycle
- Sparking, arcing or popping sounds inside the cavity
- A burning smell when the microwave is running
- The turntable has stopped rotating
- The keypad or display is unresponsive or blank
- It trips your electrics or has gone completely dead
Repair or Replace?
For a cheap freestanding microwave, replacement is sometimes the simpler option. But for built-in and combination microwaves - which can cost hundreds of pounds and are integrated into your kitchen units - a repair almost always makes far more sense, both financially and practically.
Many faults, including failed magnetrons, diodes, turntable motors and door switches, are repairable with quality parts. We'll give you an honest assessment so you can decide whether to repair or replace with confidence.
How Our Cardiff Microwave Repair Service Works
1
Book Your Repair
Call us or complete the online form. We'll arrange a convenient appointment for your microwave, often same or next day right across the City of Cardiff.
2
Expert Diagnosis
Your local engineer arrives, carries out a full diagnostic on your microwave, and explains exactly what's wrong in plain English - with a clear price before any work begins.
3
On-the-Spot Fix
We carry common microwave spares in the van, so the majority of repairs are completed there and then in a single visit.
4
Tested & Guaranteed
We thoroughly test your microwave before we leave and back every repair with our workmanship guarantee for total peace of mind.
Tips to Keep Your Microwave Working Well
- Never run the microwave empty - without food to absorb the energy, the magnetron can be damaged.
- Keep the interior, especially the waveguide cover, clean to prevent arcing and sparking.
- Always use microwave-safe containers and never put metal or foil inside the cavity.
- Wipe up spills promptly so food residue doesn't burn onto the waveguide cover.
- Make sure the door closes cleanly and the seal is undamaged, as the interlock switches rely on it.
Premium Microwave Brands We Service
We specialise in repairing expensive built-in and combination microwaves where replacement would cost hundreds of pounds.
Microwave Repair FAQs
Why is my microwave not heating but still running?
If the turntable spins and the timer counts down but food stays cold, the fault is usually a failed magnetron, diode or high-voltage capacitor. These should only ever be replaced by a trained engineer.
Is it safe to use a microwave that sparks inside?
No - stop using it. Sparking is often caused by a burnt waveguide cover or exposed metal in the cavity. Switch it off and book a repair so we can make it safe.
Do you repair built-in and combination microwaves?
Yes - they're our speciality. We repair built-in and combination (combi) microwave ovens, where a repair is far more economical than replacing a unit fitted into your kitchen.
Should I just buy a new microwave instead?
For a basic freestanding model it can be simpler to replace it. But for premium built-in and combination microwaves, a repair usually saves you hundreds of pounds and the hassle of refitting.
Book Your Repair Today
Fill in our quick form and one of our Cardiff-based team members will call you back shortly to arrange a convenient time for your repair.
Agreed Timeslots
We won't keep you waiting in all day.
Clear Pricing
Fixed labour charge, no hidden costs.
Fast Response
Same and next-day appointments, subject to availability.
Prefer to talk?
Our engineers cover every Cardiff suburb daily, from Roath to Whitchurch and Ely. Call us and we'll book you in there and then.