Ductless Mini-Split Repair in Simpsonville, SC
When a mini-split stops cooling, won't heat, leaks water, or starts blinking, we find the cause and fix it. We repair ductless systems across Simpsonville and the Upstate and aim to get to you the same day.
- 5.0129+ Google reviews
- SC License RBH.39040Residential HVAC Contractor
- EPA 608 UniversalCertified
- Licensed, Bonded, InsuredEvery job
Honest Mini-Split Diagnosis and Repair
Our own technicians handle every repair. They don't work on commission and they don't have sales quotas, so there's no reason for anyone to push a new system when a repair will do the job.
Before any work starts, we explain what failed and what the fix costs. We photograph failed parts, including anything in the attic or crawlspace, so you can see what we found. If refrigerant is low, we find and repair the leak instead of just adding more. We're EPA 608 Universal certified for that work.
We're open 24/7, weekends included, and return calls within about an hour. You'll get a text when your technician is on the way. The diagnostic fee is credited toward the repair if you approve it.
We offer 5% off service work for active duty military, veterans, first responders, and teachers. Financing is available through Wisetack, subject to approval.
Common Mini-Split Problems We Fix
Most mini-split calls start with one of these:
A few quick checks can save you a call. Clean the filter if it looks dusty, clear leaves and debris away from the outdoor unit, and make sure the remote has fresh batteries and is set to cool or heat. If the problem is still there after that, give us a call.
- Not cooling or not heating — dirty filters, a blocked outdoor coil, a refrigerant leak, or a failed part can all cut the output
- Water dripping from the indoor unit — usually a drain problem, though not always; we cover the causes below
- A blinking light or error code — the system is reporting a fault it detected
- Ice on the indoor coil or the copper lines — this usually points to an airflow or refrigerant problem
- A musty smell when it starts — buildup inside the indoor unit can cause odor
- Won't turn on or won't respond to the remote — this can be power, the remote itself, or a control board
Why a Mini-Split Leaks Water Indoors
A mini-split pulls moisture out of the air as it cools. In a humid Upstate summer, that adds up to a lot of water. The indoor unit catches it in a drain pan and sends it outside through a drain line. A leak means something in that path isn't working.
If your unit is dripping, turn it off and wipe up the water to protect the wall and floor. Then check the filter. If the leak keeps going, we'll find the actual cause. That might mean clearing the drain, replacing the pan, repairing a refrigerant leak, or correcting how the unit was mounted so the problem doesn't come back.
- A clogged drain line. Dust and algae build up and block the water's way out.
- A dirty filter. Restricted airflow lets the coil freeze. When the ice melts, it overflows the pan.
- A cracked or tilted drain pan. Water escapes before it reaches the drain.
- Low refrigerant. A leak can also freeze the coil and cause the same overflow.
- An install problem. An indoor unit that isn't level, or a drain line without enough downward slope, lets water pool and spill.
What a Blinking Mini-Split Light Means
A blinking light on the indoor unit is the system telling you it found a problem. The number of blinks, the light's color, or a code on the display points to a specific fault. Common ones include a sensor reading out of range, a drain issue, lost communication between the indoor and outdoor units, or a pressure or refrigerant problem.
Codes differ from brand to brand, so the same pattern can mean different things on two systems. On some systems, a slow blink during heating just means the outdoor unit is defrosting. That's normal and stops on its own.
When the light keeps blinking and the unit stops running, write down what you see before you call. Note how many blinks, what color, and what the system was doing. Turning the unit off and back on may clear the code for a while, but if it comes back, the fault is still there. We use the code as a starting point and then test the part it points to, so the repair goes after the actual cause.
Repairing vs. Replacing a Mini-Split
Most mini-split problems are worth repairing. A clogged drain, a failed sensor, or a single worn part can usually be fixed and the system goes back to running well.
When it's close, we lay out both options with real numbers and let you decide. If your existing system is beyond economical repair, we can walk you through ductless mini-split installation options.
- The system keeps losing refrigerant even after leak repairs
- A major part like the compressor has failed on an older unit
- The repair cost comes close to the cost of a new system
- The unit never kept up with the room because it was the wrong size from the start
Everyday Mini-Split Care
A little routine care goes a long way:
Buildup deeper inside the unit, on the coil and blower wheel, needs a technician to clean safely.
- Clean the filters when they look dusty or the filter light comes on — many indoor units have washable filters you can rinse, let dry, and slide back in
- Keep the outdoor unit clear — trim shrubs back and clear leaves, grass clippings, and storm debris away from it
- Pick heat or cool instead of auto — that keeps the system from switching modes on days when the weather can't make up its mind
- Hold a steady temperature — big setbacks don't save much with a heat pump and make it work harder to recover
- Watch for water — drips, stains, or a gurgling sound from the indoor unit are worth a call before they turn into wall damage
What Happens During a Repair Visit
- 1You call or request service. We answer around the clock and return calls within about an hour.
- 2We head your way. We aim for same-day service, and you'll get a text when your technician is on the way.
- 3We find the cause. We read any error code, then check the filters, drain, electrical connections, and refrigerant.
- 4We explain before we fix. You'll hear what failed and what the repair costs, with photos of the failed parts.
- 5We repair and test. After the repair, we test the system in both cooling and heating before we leave, and clean up the work area.
Other Cooling and Heating Services
Ductless Mini-Split Installation
A new mini-split sized and placed for a room, garage, addition, or home without ductwork.See moreHeat Pump Repair
Repairs for ducted heat pumps that won't heat, won't cool, or won't switch modes.See moreAC Repair
Diagnosis and repair when your central air drops off or stops cooling.See moreEmergency AC Repair
Same-day help when the house is overheating, with calls answered around the clock.See moreHear From Our Customers
Read what homeowners around the Upstate say after the work is done, in their own words.
James & Connor were excellent! I appreciated how thorough they were with the service and resolution of my issue. They also took the time to educate me on our systems. I would highly recommend them if you are looking for a great HVAC team.
Salina A. Tillman, MBAGoogle review · August 2026Read Salina A. Tillman, MBA's review on GoogleVery professional installation of replacement HVAC.
William ArmesGoogle review · August 2026Read William Armes's review on GooglePhenomenal company. Very professional and respectful. Highly recommend for all your HVAC needs
Donna SandersGoogle review · August 2026Read Donna Sanders's review on GoogleI had two units serviced for the summer. The team was friendly, did great work, and weren’t pushy at all. I would recommend working with them in the future.
Jon LangfordGoogle review · August 2026Read Jon Langford's review on GoogleI am extremely satisfied with the work completed by Rhino HVAC. Parker and Ronnie are very knowledgeable in the field, and they took the time to answer all of my questions. Outstandingly job, extremely thorough, and very friendly as well. My wife and I highly recommend them.
Weston StuderGoogle review · July 2026Read Weston Studer's review on GoogleI called at 7 am and they were here by 11 am. James was so incredibly thorough and great about explaining every step to me. He wanted to make sure everything was working properly before he left and went above and beyond to make sure I didn’t have the same problem again. I highly recommend!
Haleigh PooleGoogle review · July 2026Read Haleigh Poole's review on GoogleVery through on every service visit. Contact you right away when issues arise.
Melani CalhounGoogle review · July 2026Read Melani Calhoun's review on GoogleAC wasn’t cooling and I also found multiple gallons of water just sitting inside one of my AC ducts. I went on facebook and noticed multiple people referring Rhino HVAC, so I decided to give them a call. They were able to come out the next day, evacuate the water, diagnose, and repair my AC system. Connor and James were fantastic and I can’t recommend them enough!
NickGoogle review · July 2026Read Nick's review on GoogleJames and Connor did a phenomenal job today. Very insightful and did great work. Would highly recommend there services to anyone.
Zaven YoungGoogle review · July 2026Read Zaven Young's review on GoogleJames was awesome. HIGHLY recommend rhino!
Kalee DavisGoogle review · July 2026Read Kalee Davis's review on GoogleJame is a wonderful person, he helped me save a lot of money by identifying the problem with my AC and fixing it-even though another company had told me I needed to replace the unit entirely, which would have been very expensive.
Tuan VuGoogle review · July 2026Read Tuan Vu's review on GoogleVery professional and knowledgeable team.
Ross StephensGoogle review · July 2026Read Ross Stephens's review on GoogleJames, Connor, and Ronnie have all been great to work with! They are very responsive, extremely thorough, and take the time to answer any questions. James and Connor provided me with in-depth simple suggestions on dealing with indoor humidity levels. They even completed our annual maintenance in the pouring rain. Highly recommend and will continue to be customers for annual maintenance.
Tabor SchnellGoogle review · July 2026Read Tabor Schnell's review on GoogleJames did a great job. He was very thorough in describing the problem and got it fixed ASAP. I really appreciate Rhino getting to our airbnb super fast.
Jaimee SargentGoogle review · July 2026Read Jaimee Sargent's review on GoogleRhino HVAC was excellent! James and Connor arrived on time, were honest, and quickly fixed my HVAC issue. I called them after I felt like another company was being dishonest with me, and I’m so glad I did. They were professional, straightforward, and made the whole experience stress-free. I highly recommend Rhino HVAC and I plan to use them in the future!
Lauren FrankGoogle review · July 2026Read Lauren Frank's review on GoogleRhino HVAC came highly recommended from lots of our neighbors. Very responsive, came out quickly and diagnosed and corrected the issue within 30 minutes. Definitely recommend 100%!
Sonja BlackGoogle review · July 2026Read Sonja Black's review on GoogleOur house HVAC system not been serviced in too long of time I'm embarrassed to say. Rhino HVAC was friendly, informative and prompt with sending a tech to our house for service. Our tech James went through the whole system thoroughly, patiently and was completely knowledgeable. And he did it with a sincere and friendly customer service attitude. He showed us a few mandatory points of how we can keep things in good condition in between services such as timing of replacing filters, keeping the condensers clear enough from our garden growth and more. He also pointed out the 100% need for a kill switch to our unit in the attic to prevent any flooding damage that would occur if our unit had a water issue-A small cost to prevent a major one! We have "found" our HVAC go to. I highly recommend Rhino HVAC.
Tim SchmidtGoogle review · July 2026Read Tim Schmidt's review on GoogleRonnie was great! Our A\C went out and he was here in 20 minutes. He found the issue right away and we are all cooling back down now! Highly recommend Rhino HVAC!
Kaaryn TaboneGoogle review · July 2026Read Kaaryn Tabone's review on GoogleOutstanding service! James diagnosed the problem quickly and repairs were very reasonable. We signed up for a service contract and they did a full inspection and cleaning on the spot. I would recommend without hesitation.
Sarah SaoitGoogle review · July 2026Read Sarah Saoit's review on GoogleI am so thankful for Ronnie and James! They came out quickly and figured out the source of the problem. They also provided education regarding yearly maintenance on the unit. First time home owner, I never would have known! They are truly the best and so kind! They will be my go to HVAC guys!!
Courtney ShubaGoogle review · June 2026Read Courtney Shuba's review on GoogleRhino hvac were so quick at scheduling the first inspection even tho I wasn’t an established customer, and helped find the problem and adjust my system even when multiple visits were needed. Thank you!
Jorge Garza SáenzGoogle review · June 2026Read Jorge Garza Sáenz's review on GoogleMy mom needed her AC looked at and these guys were recommended on a local Facebook page. She called, they answered right away and were at her house same day to take a look! They were back the next day to get a new unit installed. They were prompt and courteous. They kept everything neat, tidy, and clean the whole time they were there. They explained everything through out the process and worked extremely hard to get her up and running. My mom had nothing but good things to say about them and will highly recommend. Key takeaways: Respectful, reliable, courteous, clean, great to work with. Thank you guys for taking care of my mom!
Yelena HGoogle review · June 2026Read Yelena H's review on GoogleRonnie gives the kind of service and honest answers you’d expect from an experienced HVAC guy. After nearly being hustled into buying a whole new HVAC by one of those “local” private equity companies, I contacted Ronnie. Ronnie was helpful and took the time to talk through everything. Very knowledgeable, friendly. He’s honest without having to tell you he’s an honest guy. Highly recommend.
Shawn TrappGoogle review · June 2026Read Shawn Trapp's review on GoogleWe found Ronnie through reading some great reviews and are blown away by how hard working, thorough and knowledgeable he is! He came out and worked his butt off and did such a great job. It is so nice to finally find a trustworthy company for our home. We are so happy to have found him and signed up with his service right away after seeing what an amazing job he did.
RLO SGoogle review · June 2026Read RLO S's review on GoogleRonnie was on time and took care of the maintenance , and was able have both units ready for the summer . Thanks Buddy.... Have a great week
John CarmichaelGoogle review · June 2026Read John Carmichael's review on GoogleBased on over one hundred five star reviews, we decided to give Rhino HVAC a call. Ronnie arrived in less than thirty minutes and was able to quickly diagnose the issue. We have experienced ongoing problems with our HVAC for years and Rhino HVAC is the first company that was able to provide real solutions. Ronnie is incredibly knowledgeable. He was professional in articulating his findings and presenting options to resolve the issue. I highly recommend Rhino HVAC to anyone in the upstate that is experiencing issues with their AC. If you are looking for someone to get the job done, do it right, and all for a fair price, don’t think twice.
Luke McClellanGoogle review · June 2026Read Luke McClellan's review on GoogleCalled Ronnie up and came rt out to look at ac unit,had it fixed in no time.Highly recommend his service. Thanks again Ronnie!Mike Lee.
Mike LeeGoogle review · June 2026Read Mike Lee's review on GoogleVery professional service came in see the issue fixed and hand me back with air within a few minutes! If anyone needs any ac this is the place to call!
Michael StonellGoogle review · June 2026Read Michael Stonell's review on GoogleRonnie was great! Very professional and explained everything about the system so even we could understand it. Would recommend Rhino to anyone who needs services on their hvac systems. We will be using Rhino for our services from now on.
Gary MurrayGoogle review · June 2026Read Gary Murray's review on GoogleRhino HVAC came highly recommended in a local FB group, by numerous members. When I first called no one answered, and I have anxiety so I just hung up without leaving a message and continued being stressed out…🤷♀️😵💫 I received a call back from Ronnie fifteen minutes later and as he was in the area, was at my house and diagnosing the issue within twenty minutes. I don’t think you can get a quicker response time than that! As a less than experienced homeowner with this kind of stuff, and a solo female, I felt very comfortable with Ronnie in my home, very respectful, cleanly and well presenting-no creepy vibes at all-which is a concern of mine from previous experiences. He was clear about delivering the information he gave me about what he was going to do initially, and after assessing, clearly communicated what the issue was and a clear quote to fix it. Ronnie continued to be on top of things ordering the part as soon as I gave the go ahead for the job, picking the part up as soon as it was available and on his way to my house as soon as he got it. I felt like a priority with the all consistent communication. After Ronnie fixed my AC(yay!!!)…he also took the time to go under my crawl space and let me know about a potential fire hazard with how my unit was apparently setup before I purchased the home, and gave me a reliable referral to a local electrician who could help with that. Ronnie really went the extra mile with great service and results and I will definitely use Rhino HVAC in the future should I need to. Thanks again, Ronnie for your time and effort!❄️🥶
Brittany BellGoogle review · June 2026Read Brittany Bell's review on Google30 of 129 Google reviews
30 of 129 Google reviews
Ductless Mini-Split Repair FAQs
Can you come out the same day?
We aim for same-day service. You'll get a text when your technician is on the way so you're not stuck waiting at the window.
Is there a charge for a service call?
Yes, a diagnostic fee applies. It's credited toward the repair if you approve it.
Why is my mini-split blowing warm air in cooling mode?
Start by checking the filter and making sure the remote is set to cool. If it still blows warm, the usual causes are a blocked outdoor coil, low refrigerant from a leak, or a failed part, and those need a technician.
Should there be ice on my outdoor unit in winter?
A light layer of frost in heating mode is normal, and the system clears it with a defrost cycle. Thick ice that doesn't go away usually points to an airflow or refrigerant problem.
Do you just add refrigerant if it's low?
No. Low refrigerant means there's a leak somewhere. We find and repair the leak, then charge the system correctly.
Is financing available for repairs?
Yes. Financing is available through Wisetack, subject to approval, and we'll explain the terms before the repair begins.
Do you offer any discounts?
We offer 5% off service work for active duty military, veterans, first responders, and teachers. Just let us know when you book so we can confirm eligibility.
