
Runs but Does Not Heat
A failed magnetron, high-voltage diode, capacitor or transformer is the usual cause.
Causes & checks
These parts hold a dangerous charge, so leave the cover on and let us test them.
Microwave runs but the food stays cold? Sparking, a dead keypad, or a vent fan that quit? We repair over-the-range, built-in and drawer microwaves in Vaughan kitchens. A technician takes the unit down or out carefully, finds the cause and gives you the price before any work starts. The $99 diagnostic (regularly $129) is waived when Aria does the repair, and completed repairs carry our 1-Year Parts & Labour Warranty. Appointments run 8 AM to 10 PM daily.

Aria Appliance Repair fixes over-the-range, built-in and drawer microwaves in homes across Vaughan, Ontario. We test the microwave on site, explain what failed and what it will cost, and only start once you say yes. Completed repairs are backed by our 1-Year Parts & Labour Warranty.
Built-in and over-the-range microwaves are part of the kitchen, so a fault is worth fixing properly. These are the problems we see most.

A failed magnetron, high-voltage diode, capacitor or transformer is the usual cause.
These parts hold a dangerous charge, so leave the cover on and let us test them.

Damaged cavity paint, a worn waveguide cover or metal in the oven can cause arcing.
Stop using it until it has been checked.

A worn door switch can stop the microwave starting, cut out mid-run or blow a fuse.
We test the full switch set, since they work together.

Usually the turntable motor or the coupler under the tray.
Check the tray sits on its roller ring first.

A blown fuse, a thermal cut-out or a failed control board.
A fuse that blows again usually points to another fault, which we find before replacing it.

Keypads wear out, and over-the-range units have their own fan and light parts.
On over-the-range models, the fan and light matter for cooking at the stove below. Before We Arrive (template safety box) Stop using the microwave. If you see sparks or smoke or smell burning, stop it, keep the door closed and unplug it or switch it off at the breaker. Do not open the cover yourself: the high-voltage capacitor can hold a dangerous charge even when unplugged. For anything else, call us at 1-888-642-0352. ---
From your first call to a microwave that heats properly again, here is what to expect.
No heat, sparking, no power or a dead keypad. Over-the-range, built-in or drawer.
Same-day visits when the schedule allowsDiagnostic regularly $129, now $99, waived when Aria does the repair.
Diagnostic regularly $129, now $99Parts and labour, in writing, before any work begins.
Before any work beginsWe remount it and check it heats properly. Completed repairs carry our 1-Year Parts & Labour Warranty.
1-Year Parts & Labour WarrantyWe service over-the-range, built-in and drawer microwaves only. In Vaughan kitchens, from VMC condos to family houses, these units are sized to the cabinets, often part of a matching set, and an over-the-range model also works as the hood for the stove below. Replacing one means finding a model that fits the same opening and trim, so a repair is often the simpler fix. We take the unit down or out carefully, repair it and remount it.
Safety: microwaves store high voltage inside, even when unplugged. Please do not open the cabinet. If it sparks, smokes or smells of burning, stop using it and call us.
We test the main high-voltage, door, drive and control parts.
MagnetronRuns but doesn’t heat, or a loud buzz while running.
High-voltage diodeNo heat, or a buzzing sound with no heating.
High-voltage capacitorNo heat, or the microwave blows its fuse.
High-voltage transformerNo heat, a burning smell or a loud hum.
Door switchesWon’t start, stops when the door is touched, or blows a fuse.
Thermal fuseNo power at all, or it shuts off after overheating.
Turntable motorTurntable won’t turn, or turns unevenly.
Keypad & touchpadButtons don’t respond, or some keys stopped working.
Control boardBlank display, error codes, or it starts by itself.
Vent fan motorOver-the-range vent fan won’t run or is noisy.We repair over-the-range, built-in and drawer microwaves from Samsung, LG, Whirlpool, GE, Maytag, Electrolux, Frigidaire, Bosch, KitchenAid, Amana, JennAir, Wolf and Hisense. Do not see your brand? Call with your model number. Aria is independent and not affiliated with these manufacturers.
That includes over-the-range and built-in models like GE microwaves, Whirlpool microwaves, Samsung over-the-range microwaves and Wolf microwave drawers. Don’t see your brand? Call with your model number. Aria is independent and not affiliated with these manufacturers.
We test first and give you the price before any work begins. The diagnostic is $99 (regularly $129), and it is waived when Aria does the repair. If you decide not to go ahead, the diagnostic is the only charge.
Need us today, or on a Saturday or Sunday? A same-day or weekend visit is $149, and $99 of the $149 is waived if you go ahead. Same-day and weekend spots depend on the schedule, so call early and we will tell you what is open.
Diagnostic regularly $129, now $99, waived when Aria does the repair.
Completed microwave repairs are backed by our 1-Year Parts & Labour Warranty.
If the job needs wiring, a new outlet or other work beyond the microwave itself, we will tell you before any work starts.
Because built-in and over-the-range units are sized to your cabinets, a repair often beats hunting for an exact-fit replacement. A rusted cavity or several high-voltage parts failing at once is the main case where replacing can make more sense.
Rust inside the cavity, damaged door glass or repeat breakdowns can make a major repair hard to justify.
Door switches, fuses, turntable motors and keypads are usually practical to repair. A magnetron or control board costs more.
Parts for some older or discontinued models are limited or slow to source.
We compare the repair price with a comparable new unit that fits your opening, and say so if replacing is the better spend.
If replacing makes more sense, we can install your new microwave (#installation).
If replacing makes more sense, we can install your new microwave (#installation). ---
Bought a new microwave? We install over-the-range, built-in and drawer microwaves in Vaughan from $129, including mounting and connecting an over-the-range vent to existing compatible ducting. See microwave installation for the details.
What’s included: Mounting to the wall plate or into the cabinet or trim kit, connecting to an existing compatible outlet, connecting an over-the-range vent to existing compatible ducting where applicable, and a test run.
Before installation day: Check that the new microwave fits the existing opening or the space above the range, and that there is a compatible outlet. Tell us if it vents outside or needs a trim kit when you book.
Old appliance removal: Ask when you book and we will tell you whether haul-away is available.

We come to kitchens across the City of Vaughan, from VMC condos to houses in Woodbridge and Concord. Not sure your street is in our area? Call 1-888-642-0352 and we will confirm before you book. For other appliances, see all appliance repair in Vaughan.
We also serve Thornhill. If it sparked, keep the door shut and leave it unplugged until your appointment.

Call 1-888-642-0352Mon–Sun 8 AM–10 PM
Book OnlineMicrowave down in Vaughan? Tell us what it is doing and we will help arrange your appointment. Call 1-888-642-0352 or book online. For more detail, see our microwave repair and installation page or all appliance repair in Vaughan.