Service
KitchenAid microwave magnetron & high-voltage repair
It runs, the plate turns, the light is on and the food stays cold. That is a real failure rather than a setting, it is on the side of the appliance that holds a dangerous charge after unplugging, and it is not owner work.
- From $95 diagnostic, credited to the repair
- 59 cities and neighborhoods covered
- OEM parts available on order
- In writing the price, before anything is opened
Before you read on
What this job costs and how it is agreed
A starting figure, not a quote. What moves it is the model, how the unit is built in and which part it needs — settled after the on-site diagnostic.
Starts at
from $245
After a diagnostic from $95, which comes off the bill when you go ahead.
or call (305) 306-1328
Diagnostic
From $95, credited to the repair
The price
In writing, before anything is opened
Warranty
On the labor we performed
On the visit
How this visit actually goes
The same order every time, so nothing is opened and nothing is charged before you have seen the figure and said yes.
-
01
Confirm the symptom is what it sounds like
Turntable, light and fan run from ordinary household power; the heating comes from a separate high-voltage circuit. All of the first three can look perfectly normal with no heat at all, which is why "it runs but nothing heats" is such a specific complaint.
-
02
Make it safe before anything else
The capacitor inside holds a charge that can injure you long after the appliance has been unplugged. It is discharged properly as the first step of the job, every time.
-
03
Test the circuit part by part
Magnetron, high-voltage diode, capacitor, transformer — and on the inverter machines the inverter board instead. They fail in ways that imitate each other, so they are measured rather than replaced in turn.
-
04
Say whether it is worth doing
On a countertop machine this repair often costs more than the appliance is worth and we will tell you so. On a built-in or a hood combination, where replacement means matching a cabinet opening, the arithmetic usually goes the other way.
The money
What this usually costs in South Florida
The starting figure, the range the market quotes around it, and what pushes a job to either end.
-
Microwave repair cost
The light is on, the turntable turns, and nothing gets hot. That is the expensive version. The cheap version — a door switch or a control — is more common, which is why the figure starts there rather than at the magnetron.
- Researched market range: microwave repair $100–$300
- Door switches and controls are the commoner half by a distance
- The high-voltage side is never an owner repair, ever
Applies to
The KitchenAid units we carry this work out on
-
Over-the-range · Built-in · Low profile · Microwave-hood combination · Countertop · Air Fry KitchenAid microwave repair in Miami
The appliance nobody thinks about until the light is on and nothing is hot. Over-the-range, built into a cabinet with a trim kit, or the microwave-hood combination that also ventilates your cooktop — and on that last one, a dead microwave means a dead hood as well.
- It runs, the plate turns, and the food stays cold
- Buttons that do nothing, or a panel that has gone dark
- The fan or the light staying on and not switching off
In more detail
About KitchenAid microwave magnetron & high-voltage repair
Two circuits, one appliance
A microwave runs its light, its turntable and its fan on the same power as a lamp. The heating comes from somewhere else entirely: a transformer, a capacitor, a diode and a magnetron, operating at a voltage that has nothing in common with the rest of your kitchen. That separation is exactly why a machine that appears to work perfectly can heat nothing at all.
What actually goes wrong
- The magnetron, which is the part most often behind "runs but does not heat".
- The high-voltage diode and capacitor, which imitate the magnetron and cost less.
- The transformer, or on the inverter machines the inverter board.
- The thermal cut-outs, which stop the appliance rather than let it overheat.
One safety line worth reading
The capacitor inside a microwave holds a charge that can injure you after the appliance has been unplugged for a long time. Everything else on this site has a paragraph of things you can check yourself. This repair does not, deliberately.
What it costs
From $245, and the honest conversation about whether the appliance deserves it is part of the visit. The exact cost is confirmed after the on-site diagnostic.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards
Before you book
Questions about KitchenAid microwave magnetron & high-voltage repair
It runs but nothing heats up.
That is the classic high-voltage failure. Everything you can see — the light, the turntable, the fan — runs on ordinary household power, so a machine can look completely healthy and produce no heat at all. It is not an owner repair: there is a capacitor inside that holds a dangerous charge after the appliance is unplugged.
Can I open it up and look?
Please do not. This is the one appliance on this site where we do not publish a "here is what to check first" list, and the reason is that capacitor. Unplug it, stop using it, and book the visit.
Is a countertop model worth repairing?
Often not, and we will say so rather than take the job. A built-in unit or a microwave-hood combination is a different question entirely, because the appliance is fitted to an opening and replacing it can mean cabinetry work.
What does the repair cost?
From $245, depending on which part of the high-voltage circuit has gone and whether the machine is an inverter model. The exact cost is confirmed after the on-site diagnostic and agreed with you before anything is ordered — including the conversation about whether to do it at all.
Where we do it
Across Miami-Dade, Broward, and Palm Beach
Same terms everywhere we go: an on-site diagnostic first, the price agreed in writing, and the exact figure confirmed once we have seen the unit.
Neighborhoods people ask for by name