7 Common Mini-Split Problems and How to Repair Them

July 12, 2021

Having mini-split installation done is a fantastic way to solve comfort issues in your residence. These systems don’t have to have ductwork to give energy-efficient heating and cooling. Much like any other home comfort system, they can experience issues occasionally. Here are seven of the most frequent mini-split problems 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 may be an issue with the condensate drain or drain line. It’s common for a drain line to get clogged with mold, force water to back up and drip. Contact Air Alliance Team at 636-206-4250 for assistance and we’ll get your drain unclogged promptly.

2. Mini-Split is Making Noise

Mini-splits typically don’t make much noise when they’re operating. But there are a few instances where they might make sounds.

  • Popping or clicking: This can be because of the plastic housing expanding or contracting while the system is operating.
  • Swooshing, crackling or gurgling: This can take place if your mini-split switches into defrost mode to prevent itself from icing over.

You shouldn’t be troubled if you hear these noises because they’re expected. However, if your mini-split keeps turning on defrost mode, it’s a symptom that something is off, such as not enough refrigerant, a bad circuit board or broken sensors. Your Air Alliance Team HVAC pro will be able to locate and solve the issue quickly.

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

If your mini-split is not heating or blowing hot air, icy coils may be the issue. Like we discussed prior to this, icy coils could be the result of low refrigerant, a failing circuit board or malfunctioning sensors. Reach us at 636-206-4250 for assistance.

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

If your mini-split is not cooling or blowing cold air, there could be a refrigerant leak. Your mini-split AC uses refrigerant to move heat and keep your residence pleasant. These leaks must be resolved by a licensed HVAC tech, so contact us at 636-206-4250 for support.

5. Mini-Split is Not Dehumidifying

Similar to an air conditioner, a mini-split is efficient at dehumidifying during the summer. However, this can be interrupted by clogs in the condensate drain line. Another reason your mini-split air conditioner may not be dehumidifying properlyis if it’s oversized. A system that’s too large will cool down a room too quickly without having a chance 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 get your attention 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 might have a mold issue. Have a pro like Air Alliance Team inspect and rinse the condensate drain and drain line, if needed.

Vinegar

If your mini-split smells like vinegar or has a sweet odor, you’re likely encountering a refrigerant leak. Another sure sign that you don’t have sufficient refrigerant is a lack of cold air. Call us at 636-206-4250 for help.

Fish

If your mini-split smells like fish, the following things things could be wrong. In some instances this smell means there are electrical issues or that there’s a leak. Nevertheless, reach us at 636-206-4250 for help.

7. Mini-Split Will Not Power On

If your mini-split will not power on, examine the remote first. If the batteries are out of juice, your mini-split won’t turn on. In most experiences, replacing the batteries will fix the trouble. If you’re still experiencing trouble, contact us at 636-206-4250.

Turn to Us for Your Mini-Split Repair Needs

When you need mini-split repair or air conditioning repair in Ballwin and St. Charles, call the company your neighbors and friends have trusted since 1993. Quality workmanship, reasonable prices and your comfort are our top priorities! Call us at 636-206-4250 to book your appointment today.