7 Common Mini-Split Problems and How to Fix Them

July 12, 2021

Having mini-split installation done is a wise solution for solving comfort troubles in your house. These systems don’t have to have ductwork to deliver energy-efficient heating and cooling. Like any other home comfort system, they can experience problems 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 get clogged with mold, force water to back up and drip. Reach Morgner Inc. Air Conditioning & Heating at 314-262-4541 for help and we’ll get your drain unblocked quickly.

2. Mini-Split is Making Noise

Mini-splits usually don’t generate much noise when they’re on. But there are two times where they could create sounds.

  • Popping or clicking: This can be because of the plastic housing expanding or contracting while the system is on.
  • Swooshing, crackling or gurgling: This can occur if your mini-split turns on defrost mode to keep itself from icing over.

You shouldn’t be alarmed if you hear these noises since they’re typical. However, if your mini-split keeps turning on defrost mode, it’s a clue that something is wrong, like low refrigerant, a bad circuit board or malfunctioning sensors. Your Morgner Inc. Air Conditioning & Heating HVAC professional will be able to pinpoint and resolve the situation rapidly.

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

If your mini-split is not heating or blowing hot air, ice on the coils could be to blame. Like we mentioned prior to this, icy coils might be the result of insufficient refrigerant, a bad circuit board or defective sensors. Contact us at 314-262-4541 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 needs refrigerant to transfer heat and keep your house cold. These leaks must be resolved by a licensed HVAC tech, so reach us at 314-262-4541 for assistance.

5. Mini-Split is Not Dehumidifying

Similar to an air conditioner, a mini-split does a great job 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 properlyis if it’s too big. A system that’s too large will cool down a room too fast 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 usual smells and what they mean.

Musty, Sour or Mildew

If your mini-split smells musty, sour or like mildew, you may have a mold issue. Have a specialist like Morgner Inc. Air Conditioning & Heating check and clean the condensate drain and drain line, if required.

Vinegar

If your mini-split smells like vinegar or has a sweet odor, you’re possibly dealing with a refrigerant leak. Another sure hint that you don’t have enough refrigerant is a weak flow of chilled air. Contact us at 314-262-4541 for assistance.

Fish

If your mini-split smells like fish, a couple of things could be wrong. Sometimes this smell means there is electrical trouble or that there’s a leak. Nevertheless, reach us at 314-262-4541 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 instances, putting in fresh batteries will fix the issue. If you’re still running into trouble, reach us at 314-262-4541.

Depend on Us for Your Mini-Split Repair Needs

When you need mini-split repair or air conditioning repair in St. Louis, call the company your neighbors and friends have depended on since 1965. Quality workmanship, competitive prices and your comfort are our top priorities! Contact us at 314-262-4541 to request your appointment now.