Top-rated independent heating and cooling across Tennessee
Mini-Split Repair in Knoxville, TN — Book a Visit Today
Mini splits show trouble in specific ways: one head blowing warm while the others work, water dripping down the wall, or blinking lights on the indoor unit. We do mini split repair in Knoxville for bonus rooms, additions, sunrooms and garages, the spaces that never got proper ductwork. Humid summers here fill a clogged condensate line fast, which is behind a lot of the leaks we find. You can wash the indoor filters and clear brush from the outdoor unit. Everything past that involves refrigerant and high voltage, so call us or use the quote form.
Call (888) 878-4879- Real people on the phone
- 7 days a week
- Quote in writing before any work
Taking calls until 5:00 PM ET
Common mini-split faults in Knoxville homes
- Water is dripping down the wall under the indoor head Blocked condensate drain line or a sagging drain pan
- One room stays hot while the other zones cool fine Failed zone valve, stuck indoor blower or a communication fault on that head
- The indoor unit blinks a light and shuts itself off Error code from the outdoor board, sensor fault or a refrigerant issue
- Air comes out but the room never gets cold Low refrigerant charge, often a leaking flare fitting or a coil leak
- The head smells musty every time it starts Biological growth on the evaporator coil and blower wheel
Whether you call it mini-split repair or ductless AC repair, the work is identical and so is the quote you approve first.
Knoxville coverage
From Knoxville we also cover Farragut, Powell, Halls, Maryville, Alcoa, Lenoir City, Clinton, Oak Ridge, Seymour and Sevierville.
Other repairs we do in Knoxville
- AC Repair
- Furnace Repair
- Heat Pump Repair
- AC Installation
- Furnace Installation
- Ductwork Repair
- HVAC Maintenance
- Duct Cleaning
- Thermostat Installation
- Indoor Air Quality
Mini-Split Repair in cities near Knoxville
mini-split repair across the region → · Every system we fix in Knoxville →
Guides & troubleshooting
Independent HVAC company vs the big names in Knoxville
| STM Heating & Air | Big-box repair chains | Handyman listings | |
|---|---|---|---|
| Quote in writing before a wrench comes out | ✓ | ✕ | ✕ |
| Phones answered by people, every day | ✓ | ✕ | ✓ |
| All major brands, gas and electric | ✓ | ✓ | ✕ |
| Independent company, nobody's quota | ✓ | ✕ | ✓ |
| Crews familiar with homes like yours | ✓ | ✕ | ✓ |
The same on every visit
The quote comes first, in writing
Covering 81 cities across Alabama, Georgia, Kentucky and 3 more.Phones answered by people
Open 7 days, 8:00 AM to 5:00 PM ET.Every major brand, gas and electric
Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.Mini-Split Repair in Knoxville — quick answers
Why is my mini-split leaking water inside the house?
Almost always a blocked condensate drain. The head makes water while cooling, and if the line clogs with dust or algae the pan overflows into the wall. Shut the unit off to limit damage and call us to clear the line.
Can one zone be repaired without touching the others?
Often yes. On a multi-zone system each indoor head has its own controls, blower and refrigerant branch, so a single failed head can be repaired on its own. If the fault is in the outdoor unit or shared wiring, it affects every zone.
What do the blinking lights on my indoor unit mean?
They are an error code, and the pattern tells us which family of fault to chase: sensor, communication, refrigerant pressure or board. Count the blinks and tell us when you call. It saves diagnostic time on the visit.
My mini-split heats poorly on cold mornings. Is it broken?
Maybe not. Heat pumps run defrost cycles in the cold and put out cooler air for a few minutes. If the room never recovers, or the outdoor unit stays iced over, that points to a refrigerant or defrost control problem worth a look.
How soon can you get to my house in Knoxville?
Call us and we will give you a real window rather than a guess. During the first hot week of summer and the first hard freeze of winter our schedule fills fast, so no-cooling and no-heat calls get sorted first. If you are waiting, check that the thermostat has fresh batteries and is set correctly, look for a tripped breaker, and swap a clogged filter. Those three things solve more calls than people expect.
How it works
- Step 1
Tell us the symptom
Call or fill in the quote form and describe what you hear, smell or feel. Warm air, short cycling, a breaker that keeps tripping. That gives us a head start on the likely cause.
- Step 2
We diagnose on site
A technician checks the thermostat, airflow, electrical connections, refrigerant performance and the outdoor unit. We work the crawlspace and the attic too, because ductwork and drainage cause more trouble than people expect.
- Step 3
You decide, then we fix it
We explain what failed, what it takes to repair it, and what we would watch next season. No work starts until you say go. Most repairs finish the same visit when parts are on the truck.
- A real person answers
- Open 7 days
- Written quote before work starts
Why homeowners call us
- Mixed heating is normal to usHeat pumps, propane furnaces and dual-fuel setups all behave differently in cold weather. We know how a heat pump should sound in the thirties and when the backup heat is doing too much of the work.
- We go under the houseRed clay crawlspaces hide crushed ducts, sweating lines and standing water. Comfort problems often start down there, not at the unit, so we look before we start replacing parts you may not need.
- Plain explanationsYou get told what broke and why, in words that make sense. If a repair is a short-term patch on an aging system, we say that out loud so you can plan instead of guessing.
- One crew, six statesWe serve homeowners across Alabama, Georgia, Kentucky, North Carolina, South Carolina and Tennessee. Same approach in every one: show up, diagnose properly, repair what needs repairing, leave the space clean.
- All major brands, gas & electricOne independent crew for Carrier, Trane, Lennox, Goodman, Rheem and more.
- Straight answersNot worth fixing? We say that out loud, and often it saves you the visit fee.
Mini-Split Repair in Knoxville
The longer it sits broken, the more it takes from you
Tell us the symptom, sign off on the written quote, get the machine back. Starting takes a minute.
- A real person answers
- Open 7 days
- Written quotes
- All major brands
- Gas & electric
Rather not call? Get a free quote →