Your over-the-range microwave is humming but the food stays cold, or it threw sparks and a puff of smoke. Call Acdc Appliance Repair and we connect you with a licensed, insured independent pro near Inez who services OTR, built-in and drawer microwaves.
A microwave is not a toaster. Inside the cabinet sits a high-voltage capacitor that can hold a lethal charge long after the plug is pulled, which is why this repair belongs with a trained technician and never with a screwdriver and a video.
Acdc Appliance Repair is a free referral service. Our dispatchers listen to the symptom, then route the call to an independent local pro who handles microwave electronics and mounting work.
The contractors in our network are independent businesses that carry the license and insurance local rules require. Ask to see both at the door.
Some microwave parts cost more than people expect. You get a written, upfront quote from the technician before work begins, which lets you weigh it against buying new.
We look for a pro already working near Inez. A same-day slot opens up regularly when local pros have breathing room, and the arrival window gets set while you are on the line.
Expect an insulated discharge tool for the capacitor, a multimeter for diode and transformer checks, the model tech sheet, and a microwave survey meter to check for leakage after high-voltage work.
These cover the over-the-range, built-in wall, drawer and convection combo models that are worth repairing. Each starts with a safe capacitor discharge before any testing.
The fan spins, the light glows, the plate turns, and the coffee comes out cold. The usual suspects are the magnetron, the high-voltage diode, the capacitor, or the transformer. The technician tests each one with the power off and the capacitor discharged.
Blue flashes along the side wall usually come from a greasy or burnt waveguide cover, chipped cavity paint, or a damaged rack support on a convection model. Left alone, arcing can pit the cavity and ruin the magnetron.
Microwaves use a chain of door interlock switches plus a monitor switch. When a switch sticks, the monitor switch shorts the line on purpose and blows the line fuse, so the whole unit goes dark. A unit that runs with the door open needs to be unplugged right away.
When keys stop responding or the oven refuses to shut off at zero, the touchpad membrane or a welded relay on the control board is usually behind it. The pro tests the keypad matrix and the relays first so the right part gets ordered.
An over-the-range microwave also works as the range hood. Grinding fans, a lamp that never turns on, greasy metal filters, and a spent charcoal filter on recirculating installs all get handled here.
A plate that will not spin usually needs a turntable motor or a new coupler. OTR units that sag or rattle may have a loose wall bracket or top bolts pulled through the cabinet, which is a safety issue with a hot stove below.
Here is a fast way to match the symptom to the likely cause. Pass it along when you call, so the pro can load the right parts for your model.
| Symptom | Common cause | What the tech checks |
|---|---|---|
| Runs, light on, no heat | Magnetron, diode, capacitor or transformer failure | Each high-voltage part with the capacitor discharged |
| Completely dead, no display | Blown line fuse from a failed door switch | Fuse, interlock switches, monitor switch |
| Sparks or smoke inside | Burnt waveguide cover, chipped cavity paint | Cover, cavity surface, stirrer, rack supports |
| Keeps running at zero or with door open | Welded relay or failed interlock | Control board relays and door switch chain |
| Plate will not turn | Turntable motor or coupler | Motor continuity, coupler, roller ring |
| Vent fan loud or dead | Fan motor bearings, greasy filters | Fan motor, damper, grease and charcoal filters |
Most pros will be honest that a small countertop unit is cheaper to replace than repair. Over-the-range, built-in, drawer and convection combo models are different: they are pricier, they are sized to a cabinet opening or wall plate, and replacing one can mean new trim, new brackets and reworked ductwork.
Leave the cabinet closed and pick up the phone. The dispatch line is answered around the clock.
Tell the dispatcher what type of microwave you have, whether it sits over the range, in a wall, or in a drawer, and what it is doing. If you can, read off the model number from the tag inside the door frame.
An independent technician working close to Inez gets the job, and the dispatcher shares the arrival window. Same-day arrivals are routine when a local independent pro is free.
The technician unplugs the unit, discharges the capacitor with an insulated tool, and tests the high-voltage parts, door switches and control board. OTR models may need to come off the wall plate for access. You get a written, upfront quote before work starts.
Once the part is in, the technician runs a water heating test and, if the high-voltage side was opened, checks the door edges with a leakage survey meter. The technician typically documents the parts and labor warranty on the work order; ask for a copy.
Our over-the-range microwave went completely dark mid-popcorn. The technician found a blown line fuse, then traced it to a cracked door switch. He replaced both and showed me why the fuse would have blown again if he had only swapped the fuse.
Our wall-mounted microwave ran with no heat. Replacing it meant matching a trim kit, so I asked about repair. She tested the high-voltage parts, swapped the magnetron, and ran a leakage check with a survey meter before packing up.
Sparks were jumping off the side wall every time I warmed soup. It was a burnt waveguide cover soaked with grease. Quick fix, and he showed me how to keep that cover clean.
Our microwave drawer would not stop running after the timer hit zero. The pro found a welded relay on the control board, ordered the board by model number, and came back two days later to install it.
A microwave that runs without heating has a fault in its high-voltage section: magnetron, diode, capacitor or transformer. Because that circuit can hold a deadly charge, the testing belongs with a pro who knows how to discharge it safely.
No. Stop using it until it is checked. Sparks usually come from a dirty or burnt waveguide cover or chipped cavity paint, and continued arcing can damage the magnetron. If there is smoke, keep the door closed and unplug it if you can reach the cord safely.
A totally dark microwave often has a blown line fuse. The fuse usually blows because a door interlock switch failed and the monitor switch shorted the circuit on purpose. Replacing only the fuse is not enough; the technician tests the whole switch chain.
Often, yes. OTR, built-in and drawer models cost more and are sized to your cabinets, so replacing them can mean new brackets, trim and vent work. Countertop units are usually cheaper to replace. The technician gives you a written quote so you can compare.
We strongly advise against it. That capacitor stores enough energy to kill, even with the plug pulled. Keep the outer case on and leave the discharge to a technician with proper insulated tools.
Ask for it, especially after high-voltage or door work. Many pros sweep the door seal and vents with a microwave survey meter before they leave, to confirm the unit is sealed properly.
We route microwave calls from houses, condos and apartments throughout Inez and nearby neighborhoods. Dispatchers send each job to an independent pro already working close to your address, which helps when an OTR unit needs a second set of hands to lift off the wall plate.
Someone answers around the clock. Calls after hours are typically scheduled for the first slot next morning, while daytime calls can become same-day visits when a nearby pro has room.
