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PointLineAPPLIANCE REPAIR

Local • Family-Owned

Microwave Repair in Denver Metro Area

Family-owned microwave repair across the Denver Metro Area, with a firm price before work starts and genuine OEM parts.

5.0 — every review on Google is five stars

Microwave Repair

Microwave Repair in Denver and Boulder County

We repair over-the-range, built-in, drawer and countertop microwaves in 21 cities across the Denver Metro Area and Boulder County. That includes everyday brands like Whirlpool, GE, LG, Samsung, Frigidaire and Maytag, along with premium names such as Wolf, Thermador, Miele, Viking, JennAir, Dacor, Monogram and Bosch.

PointLine was started by an experienced appliance technician and his wife after years at other repair companies, where they saw too much poor communication and unclear pricing. We run things differently. You get a clear diagnosis, a firm price before any work begins, and a 90-day parts and labor warranty on every completed repair.

Troubleshooting

Common Microwave Problems We Fix in Denver

Most microwave failures trace back to a handful of parts. Here is what usually causes each symptom, what your technician checks first, and one safe thing you can look at before you call. Microwaves store high voltage even when unplugged, so please never open the cabinet yourself.

Microwave not heating

Likely cause:
When the light and turntable work but food stays cold, the high-voltage circuit is usually at fault. Common culprits are a failed magnetron, high-voltage diode, capacitor or a worn door switch.
What we check:
Your technician safely discharges the unit and tests the door switches, diode, capacitor and magnetron in turn.
Typical fix:
The typical repair is replacing the failed high-voltage component or door switch with a genuine OEM part.

Try first: Heat a cup of water for one minute on full power to confirm it truly is not heating, and make sure the power level was not accidentally set low.

Microwave turntable not turning

Likely cause:
The turntable is driven by a small motor and a coupler under the glass tray. A cracked coupler, a worn roller ring or a failed motor will stop it from spinning.
What we check:
Your technician checks the coupler and roller ring, then tests the turntable motor for power and continuity.
Typical fix:
Most often the fix is a new coupler or turntable motor.

Try first: Lift out the glass tray and roller ring, clean them and the floor of the cavity, and reseat the tray so it sits squarely on the coupler.

Microwave sparking or arcing inside

Likely cause:
Sparks usually come from a damaged waveguide cover, chipped interior paint that exposes bare metal, or food and grease buildup. Metal objects or foil left inside are another common cause.
What we check:
Your technician inspects the waveguide cover, cavity paint, stirrer and rack supports for burn marks or damage.
Typical fix:
The usual repair is replacing the waveguide cover and treating or repairing damaged cavity surfaces.

Try first: Stop using the microwave, then check for metal trim on dishes, twist ties or foil and wipe out any baked-on food splatter.

Microwave won't turn on

Likely cause:
A completely dead display often points to a blown internal fuse, a failed door switch or a control board problem. Sometimes the cause is simply a tripped breaker or a bad outlet.
What we check:
Your technician confirms power at the outlet, then tests the fuse, thermal cutoffs, door switches and control board.
Typical fix:
The typical repair is replacing the fuse together with the door switch or part that caused it to blow.

Try first: Check your breaker panel and plug a small lamp into the same outlet to confirm it has power.

Microwave door won't latch or close

Likely cause:
Worn or broken latch hooks, a bent door or a misaligned door switch assembly can keep the door from closing. Because the door switches are a safety feature, the microwave will not run until the door closes properly.
What we check:
Your technician examines the latch hooks, hinges and door alignment, and tests each door switch.
Typical fix:
Most repairs involve replacing the latch hooks, the switch assembly or the door itself.

Try first: Look along the door seal and latch openings for food buildup or debris and wipe them clean with a damp cloth.

Microwave buttons or keypad not working

Likely cause:
Keypads wear out, crack or get damaged by moisture and grease over time. A control lock that was turned on by accident can also make it seem as if the buttons are dead.
What we check:
Your technician tests the membrane keypad and its ribbon connection to the control board.
Typical fix:
The usual repair is a new keypad membrane or, if needed, a replacement control board.

Try first: Check your owner's manual for the control lock or child lock setting, and try unplugging the microwave for a minute to reset it.

Microwave loud humming or buzzing

Likely cause:
A light hum is normal, but a loud buzz or groan often signals a failing magnetron, high-voltage diode or transformer. Noisy cooling fans or turntable motors can also be to blame.
What we check:
Your technician listens to isolate the source, then tests the magnetron, diode, transformer and fan motor.
Typical fix:
The typical fix is replacing the failing high-voltage part or the noisy fan or motor.

Try first: Make sure the turntable tray is seated correctly and nothing is rattling inside the cavity before you call.

Over-the-range microwave vent fan or light not working

Likely cause:
Over-the-range units have their own vent fan and cooktop light, which run on separate switches, motors and bulbs. Grease buildup, a failed fan motor, a bad bulb or a worn control can stop them working.
What we check:
Your technician tests the vent fan motor, light sockets, thermal sensors and the control or switch board.
Typical fix:
Common repairs include a new vent fan motor, light socket or switch board.

Try first: Remove and clean the grease filters under the microwave, and check your manual for how to replace the cooktop bulbs from below.

Over-the-Range vs. Built-In

Over-the-Range, Built-In and Drawer Microwave Repair

How a microwave is installed changes how it fails and how it is serviced. We work on every common style found in Denver Metro kitchens.

Over-the-range

Over-the-Range Microwaves

  • They double as a cooktop vent hood, so fan motors, grease filters and cooktop lights see heavy use.
  • Heat and grease rising from the stove can shorten the life of fans, switches and keypads.
  • Removing one from its wall bracket is a two-person job, and your technician handles it safely.
  • Recirculating models use a charcoal filter, while externally vented models rely on clear ductwork and a working damper.
Built-in & drawer

Built-In and Drawer Microwaves

  • Built-in units sit inside cabinetry with a trim kit, so careful removal protects your cabinets and finish.
  • Drawer microwaves have motorized drawer mechanisms and sensors that need specific diagnosis.
  • Many are premium brands such as Wolf, Thermador, Miele, Sharp-built drawer designs from major brands, Dacor and Monogram.
  • Proper airflow around the trim matters, since blocked vents can cause overheating and shutdowns.

We also repair microwave and wall oven combinations, where both appliances share one cabinet opening and sometimes a common control. Your technician diagnoses each section separately so you only pay for what actually needs fixing.

Brands We Service

Microwave Brands We Repair

Everyday and premium microwave brands, repaired with genuine OEM parts.

  • Whirlpool logo
  • GE logo
  • LG logo
  • Samsung logo
  • KitchenAid logo
  • Frigidaire logo
  • Maytag logo
  • Electrolux logo
  • Wolf logo
  • Thermador logo
  • Miele logo
  • Viking logo
  • JennAir logo
  • Dacor logo
  • Monogram logo
  • Bosch logo

Colorado Know-How

Microwave Care in Colorado: Altitude and Cooktop Venting

Sources: Wikipedia city articles (elevations), Denver Water.

Denver sits at 5,280 feet, and most Denver Metro cities are between roughly 5,000 and 5,800 feet. At this altitude water boils at a lower temperature, so liquids reach a boil sooner and can bubble over or steam up the cavity more than package directions suggest. Spills and moisture left behind can work their way toward the waveguide cover and lead to sparking over time.

Altitude also affects cooking times, so many Colorado cooks heat food in shorter intervals and stir in between. That habit is good for your microwave, too, because it reduces splatter and long, hot run times that stress high-voltage parts. If you have a gas range under an over-the-range microwave, keep in mind that gas appliances need to be set up correctly for elevation, and a properly adjusted burner sends less heat and soot up into the microwave above.

Over-the-range units also vent your cooktop, so their grease filters and fan work hard in busy kitchens. Clean filters and a clear vent path help the fan move air and protect the controls from heat. For built-in models, keep the trim vents open and free of dust so the microwave can cool itself the way the manufacturer intended.

Maintenance Checklist

How to Make Your Microwave Last Longer

A few simple habits keep a microwave heating evenly and help prevent sparking, overheating and worn parts. None of these steps require opening the cabinet, which should always be left to a technician.

One maintenance visit a year is included with the PointLine Care Club, along with free service calls all year. It is an easy way to keep your microwave and other appliances checked by a technician.

  • Every use

    Cover food with a microwave-safe lid or paper towel to cut down on splatter. Never run the microwave empty, and keep metal, foil and dishes with metallic trim out of it.

  • Every week

    Wipe the interior, door seal and turntable with a damp cloth and mild soap. Clean spills promptly so they cannot bake onto the waveguide cover.

  • Every month

    Remove and wash the glass tray and roller ring, and wipe the area underneath. Make sure the tray sits squarely on its coupler when you put it back.

  • Every month

    On over-the-range models, soak the metal grease filters in hot, soapy water, rinse and let them dry fully before reinstalling. Clean filters help the vent fan work less hard.

  • Every six months

    Check that the vents on the outside of the microwave and around any built-in trim are clear of dust and clutter. Good airflow keeps internal parts from overheating.

  • Once a year

    Replace the charcoal filter on recirculating over-the-range models, following your owner's manual. Also close the door gently instead of slamming it to protect the latch and door switches.

How It Works

How Our Microwave Repair Service Works

Four simple steps from the first call to a working microwave.

  1. 01

    Book online or call

    Schedule online or call us at (720) 285-3573. Tell us the brand, style and what the microwave is doing, and pick an arrival window that fits your day.

  2. 02

    Arrival in your chosen window

    Your technician arrives within the window you selected. We keep you informed if anything changes, because clear communication is why we started PointLine.

  3. 03

    Diagnosis and a firm price

    Your technician safely diagnoses the problem and gives you a firm price before any work starts. The $85 diagnostic fee is credited toward the repair if you go ahead.

  4. 04

    Repair with genuine OEM parts

    We complete the repair with genuine OEM parts and test the microwave before we leave. Every completed repair is backed by a 90-day parts and labor warranty.

Honest Advice

Should You Repair or Replace Your Microwave?

A typical microwave lasts about 9 years, according to a National Association of Home Builders study. Where yours falls in that range, and what kind it is, helps decide whether a repair makes sense.

~9 yrstypical microwave lifespan
(NAHB study)
  1. 1

    Age vs. cost: a younger microwave with a single failed part is usually worth repairing, especially built-in, drawer and over-the-range models that cost more to replace and install.

  2. 2

    The 50% rule: if the repair costs more than about half the price of a comparable new microwave, replacement is often the better value.

  3. 3

    When replacing makes more sense: a basic countertop model near the end of its expected life, a rusted or damaged cavity, or several failing parts at once usually point toward a new unit.

Google Reviews

What Our Customers Say

5.0Every review on Google is five stars.

Read more reviews on Google
  • “I highly recommend PointLine for appliance repair! I called them on a Sunday about a leaking washing machine, and they were incredibly responsive right from the start. They scheduled a same-day appointment, and Nick arrived ready to help. He was highly knowledgeable, answered all my questions, and fixed the faulty valve during that single visit. To top it off, Nick followed up a week later to ensure everything was still working perfectly. I will absolutely use them again for any future repair needs!”

    Joe S.October 2026 · Google
  • “Excellent service! Nick is a very knowledgeable and skillful appliance repair master. He was on time, well-prepared, clean, and respectful of my home. He was able to diagnose the problem with the Maytag front-load washing machine within minutes. Nick clearly explained the repair and cost before starting the repair. The machine was working normally within 15 minutes after his arrival. I am particularly impressed by his honesty! Instead of trying to sell me a replacement of the computer chip that created the problem with the washer he simply reset it and it has been working fine. In addition he patiently explained and showed me how to reset it myself in the unlikely event it happens again. It has been a month since he repaired it and the machine has been working without any problems. My appliance is working perfectly again, and the price was fair. I highly recommend Nick to anyone looking for reliable appliance repair! I saved his contact info and will hire him again whenever I need my appliances serviced or repaired. Thank you, Nick!”

    Alex S.October 2026 · Google
  • “Nick was here today to fix a very old dryer and a newer stove. He arrived on time, was efficient, friendly, tidy and very reasonably priced. Having an older home, we've had many repairman over the years, this is one I would absolutely recommend!”

    Joanne L.June 2026 · Google

Membership

PointLine Care Club

One service call is $85. For $99 a year, every service call is free.

  • Free service calls all year — no $85 fee
  • 1 free maintenance visit a year
  • 10% off labor on every repair

$99/ year

One household · renews yearly · cancel anytime before renewal

Property manager or landlord? See our Property Care Club →

FAQ

Microwave Repair FAQ

Straight answers about microwave repair in the Denver Metro Area.

Still have a question?

Give us a call — we'll be glad to help.

(720) 285-3573

How much does microwave repair cost in Denver?

It starts with a $85 diagnostic visit, which is credited toward the repair if you go ahead. After diagnosing the problem, your technician gives you a firm price before any work begins, so there are no surprises. We accept cash, major credit cards, Venmo, Apple Pay and checks.

Do you offer a warranty on microwave repairs?

Yes, every completed repair comes with a 90-day parts and labor warranty. If the same issue returns within that time, we come back and make it right.

Can you repair my microwave the same day?

Same-day service is often available, though we cannot guarantee it. Call (720) 285-3573 early in the day for the best chance, and we will offer the soonest window we have.

Is over-the-range or countertop microwave repair different?

Yes, over-the-range repairs involve more parts and more labor than countertop units. They include a vent fan, cooktop lights and filters, and they must be safely removed from the wall bracket for many repairs. Built-in and drawer models also require careful work around trim kits and cabinetry.

Is it worth repairing an older microwave?

It depends on the age, the type and the repair cost. A typical microwave lasts about 9 years, so a younger over-the-range, built-in or drawer model is usually worth fixing, while an older basic countertop unit may not be. If the repair would cost more than about half the price of a new one, we will tell you honestly.

What should I do if my microwave sparks or smokes?

Stop the microwave immediately, keep the door closed and unplug it or switch off the breaker. Do not open the cabinet, since microwaves hold high voltage even when unplugged. Once it has cooled, check for metal inside, then call us for a safe inspection.

Which microwave brands do you repair?

We repair all major brands. That includes Whirlpool, GE, LG, Samsung, KitchenAid, Frigidaire, Maytag and Electrolux, plus premium brands like Wolf, Thermador, Miele, Viking, JennAir, Dacor, Monogram and Bosch.

Is your microwave giving you trouble?

Book online or call (720) 285-3573 for a clear diagnosis, a firm price and a 90-day warranty on the repair.

Call Now Book Online