Top-rated independent appliance repair on Oahu & the Islands
Built-In Microwave Repairs
We repair built-in and over-the-range microwaves across Hawaii, and the first thing we do is tell you whether the repair is worth it. Call us with your model number and what the unit is doing. Maybe it hums but the leftovers stay cold. Maybe the latch sticks, or the touchpad only responds when you lean on it. Since the thing is trimmed into your cabinets, replacing it isn't as simple as buying a new one, so here's how we sort it out.
Call (888) 857-9883- Real people on the phone
- 7 days a week
- Quote in writing before any work
Taking calls until 5:00 PM HST

From the technicians at Tunista Appliance Repair
Age matters, but the cabinet matters more
A countertop microwave is easy to replace. A built-in or over-the-range unit is a different animal. It's screwed into cabinet trim, wired in, and often sized to a cutout that newer models don't match. That's why we lean toward repair on built-ins more often than you'd expect. As for age: under about eight years, a repair usually makes good sense. Past that, we look at how the unit has held up. Here in Hawaii, salt air and kitchen humidity are hard on metal. If the cavity is rusting through or the chassis is pitted, age stops being just a number.
The fault tells you most of the story
Some failures are simple. Door switches, latches, fan motors, turntable motors, light sockets, and control panels wear out on a normal schedule and usually swap out without drama. Others are bigger. If the microwave runs but never heats, that points to the high-voltage side. Those parts are serviceable, but they cost more and take longer to source. A burned, arced, or crumbling interior cavity is not something we patch. Smells like burnt plastic, sparks inside, or a scorched wall panel? Stop using it and unplug it if the plug is reachable. Call us and describe exactly what you saw.
Parts are the island wildcard
On the mainland a part shows up next day. Here, it ships. We're honest about that up front. Common components for popular brands often sit on shelves locally or arrive quickly. Control boards and trim pieces for discontinued models can take considerably longer, and sometimes they're simply gone. Before you commit to a repair, we check availability first. If the part is backordered with no clear date, we tell you that instead of letting your kitchen sit half-finished. Knowing the model and serial number, usually on a label inside the door frame, speeds this up a lot.
What we actually do on the visit
We start with your description, because symptoms narrow things fast. Then we test the door interlocks, controls, fan, turntable drive, and cooling path, and we look at the cavity and vent for corrosion or grease buildup. From there we can usually name the failed part. Next comes the parts check. We tell you the fault, the part, and roughly how long sourcing will take, so you can decide with real information. If we think the unit isn't worth the work, we say so. We'd rather you spend once than twice. Send photos ahead if that's easier.
When swapping honestly wins
There are real cases where replacement is the better call. A rusted-through cavity or damaged interior wall means the unit shouldn't run at all, and a discontinued control board with no source ends the conversation right there. Multiple failures stacking up on a well-used unit is another sign, since fixing one thing just uncovers the next. If a heating fault lands on an older microwave that's already been repaired twice, we'll talk you through why fresh may serve you better. In those cases we help you get the model and cutout dimensions right so the new unit fits your existing cabinet opening.
Small things you can safely check first
Try these before you call. Confirm the outlet has power by testing another small appliance, and check the breaker panel for a tripped breaker. Make sure the door closes fully and cleanly, since a bit of food debris on the latch face will stop the unit from starting. Wipe the door edge and the frame. Reset by unplugging for a minute if the plug is accessible, or flipping the breaker if it isn't. Never remove the outer cover, and never poke around inside the housing. There are parts in there that hold a charge even unplugged. Beyond that, let us handle it: us.
When it is time to book
Related guides
Built-In Microwave Repairs — straight answers
My microwave runs but doesn't heat. Is that fixable?
Often yes. That symptom points to the high-voltage heating components, which are replaceable parts. The questions are the unit's overall condition and whether the part is available locally or needs to ship in.
Can I just buy a new one and drop it in the same hole?
Sometimes, but cutout sizes and trim kits vary between models and brands. Measure the opening and note your current model number before buying. A mismatch means cabinet work you weren't planning on.
How long will a part take to arrive in Hawaii?
Common parts for widely sold brands often come quickly. Control boards and older or specialty components can take significantly longer. We check availability before you decide, so there are no surprises.
How it works
- Step 1
Tell us the sound
Call us or fill in the form and describe what you hear, smell, or see. Puddle under the washer? Clicking from the fridge? Small details help us load the right parts before we drive out.
- Step 2
We look it over
Our tech opens the machine and tests for the real cause instead of guessing. Salt-eaten terminals and humid control boards hide well. You hear exactly what failed and which repair options make sense.
- Step 3
Fixed or scheduled
Many repairs finish on the same visit with parts off the van. When something has to ship in from the mainland, we tell you straight, order it, and keep you posted until it lands.
- A real person answers
- Open 7 days
- Written quote before work starts
Why homeowners call us
- Built for salt airCoastal homes chew through appliances. We check for corroded connectors, rusted brackets, and moisture sitting in control boards, because fixing the symptom means little if salt keeps eating the same part next season.
- Humidity knows-howDamp trade wind air makes dryers work harder and vents clog faster. We clear the airflow path and test moisture sensors, then explain the small habits that keep your laundry room from fighting the weather.
- Straight talk on partsShipping across the Pacific takes time, and we say so up front instead of vanishing. You get realistic timing and a plan for the wait. If a machine isn't worth waiting for, we'll tell you that too.
- Independent and localWe are an independent repair company and we work on all major brands. No sales pitch for a new unit. Neighbors talking to neighbors, in plain words, about the machine sitting in your kitchen right now.
- All major brands, gas & electricWhirlpool, Samsung, LG, GE, Maytag, Bosch, KitchenAid and more, as an independent repair company.
- Straight answersWhen a repair doesn't make sense, we tell you, sometimes before we even roll a truck.
About this guide
If the safe checks didn't fix it, the fault is real
Tell us what you tried and what it did. The booking itself takes a minute.
- A real person answers
- Open 7 days
- Written quotes
- All major brands
- Gas & electric
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