7 Common Mini-Split Issues and How to Resolve Them

July 12, 2021

Having mini-split installation done is a good solution for solving comfort issues in your house. These systems don’t need ductwork to deliver energy-efficient heating and cooling. Much like any other home comfort system, they can have troubles from time to time. Here are seven of the most common mini-split issues and how you can repair them.

1. Mini-Split is Dripping Water or Not Draining Water

If your mini-split is dripping water or not draining water, there might be an issue with the condensate drain or drain line. It’s common for a drain line to become clogged with mold, force water to back up and leak. Contact Tri City Fuel & Heating Co., Inc. at 803-265-4208 for help and we’ll get your drain unclogged rapidly.

2. Mini-Split is Making Noise

Mini-splits usually don’t create a lot of noise when they’re on. But there are a couple of situations where they could produce sounds.

  • Popping or clicking: This can be due to the plastic housing expanding or contracting while the system is on.
  • Swooshing, crackling or gurgling: This can occur if your mini-split switches into defrost mode to stop itself from freezing over.

You shouldn’t be alarmed if you hear these noises as they’re normal. However, if your mini-split keeps going into defrost mode, it’s a sign that something is off, including not enough refrigerant, a bad circuit board or broken sensors. Your Tri City Fuel & Heating Co., Inc. HVAC technician will be able to find and resolve the problem fast.

3. Mini-Split is Not Heating or Blowing Hot Air

If your mini-split is not heating or blowing hot air, frozen coils might be to blame. Like we mentioned before, frozen coils might be the result of insufficient refrigerant, a failing circuit board or malfunctioning sensors. Reach us at 803-265-4208 for support.

4. Mini-Split is Not Cooling or Blowing Cold Air

If your mini-split is not cooling or blowing cold air, there might be a refrigerant leak. Your mini-split AC relies on refrigerant to shift heat and keep your home cool. These leaks must be fixed by a licensed HVAC technician, so contact us at 803-265-4208 for help.

5. Mini-Split is Not Dehumidifying

Like an air conditioner, a mini-split is efficient at dehumidifying during the summer. However, this may be stopped by mold in the condensate drain line. Another reason your mini-split air conditioner may not be dehumidifying very well is if it’s too large. A system that’s too big will cool down an area too quickly without having a moment to dehumidify it. Mini-split size is planned on square footage and BTUs.

6. Mini-Split Smells

If your ductless mini-split smells, it’s trying to tell you that something is wrong. Here are five of the most common smells and what they mean.

Musty, Sour or Mildew

If your mini-split smells musty, sour or like mildew, you likely have a mold issue. Have a professional like Tri City Fuel & Heating Co., Inc. check and rinse the condensate drain and drain line, if necessary.

Vinegar

If your mini-split smells like vinegar or has a sweet odor, you’re probably dealing with a refrigerant leak. Another surefire hint that you don’t have enough refrigerant is a lack of cool air. Reach us at 803-265-4208 for support.

Fish

If your mini-split smells like fish, a couple of things could be wrong. Sometimes this smell means there are electrical issues or that there’s a leak. Either way, call us at 803-265-4208 for help.

7. Mini-Split Will Not Power On

If your mini-split will not power on, check the remote first. If the batteries are dead, your mini-split won’t run. In the majority of experiences, replacing the batteries will fix the trouble. If you’re still having trouble, contact us at 803-265-4208.

Depend on Us for Your Mini-Split Repair Needs

When you need mini-split repair or air conditioning repair in West Columbia, get in touch with the company your neighbors and friends have depended on since 1964. Quality service, competitive prices and your comfort are our highest priorities! Call us at 803-265-4208 to schedule your appointment now.