7 Common Mini-Split Troubles and How to Fix Them

July 12, 2021

Having mini-split installation done is a wise solution for solving comfort problems in your home. These systems don’t have to have ductwork to give energy-efficient heating and cooling. Much like any other home comfort system, they can run into troubles occasionally. Here are seven of the most typical mini-split problems and how you can resolve them.

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

If your mini-split is dripping water or not draining water, there could be a situation 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 leak. Call Home Comfort Heating & Air at 763-276-0617 for help and we’ll get your drain unblocked promptly.

2. Mini-Split is Making Noise

Mini-splits typically don’t make much noise when they’re on. But there are two times where they might create sounds.

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

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 clue that something is up, like not enough refrigerant, a faulty circuit board or malfunctioning sensors. Your Home Comfort Heating & Air HVAC professional will be able to find and resolve the issue quickly.

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

If your mini-split is not heating or blowing hot air, frozen coils may be the issue. Like we talked about previously, icy coils can be the consequence of insufficient refrigerant, a bad circuit board or defective sensors. Call us at 763-276-0617 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 relies on refrigerant to transfer heat and keep your residence comfortable. These leaks must be resolved by a licensed HVAC pro, so call us at 763-276-0617 for assistance.

5. Mini-Split is Not Dehumidifying

Like an air conditioner, a mini-split is effective at dehumidifying during the summer. However, this may be interrupted 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 oversized will cool down a space too rapidly without having time to dehumidify it. Mini-split size is calculated 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 likely have a mold issue. Have a professional like Home Comfort Heating & Air check and clean the condensate drain and drain line, if necessary.

Vinegar

If your mini-split smells like vinegar or has a sweet odor, you’re likely dealing with a refrigerant leak. Another certain clue that you don’t have enough refrigerant is a low concentration of chilled air. Call us at 763-276-0617 for help.

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, call us at 763-276-0617 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 switch on. In most situations, replacing the batteries will resolve the problem. If you’re still having trouble, call us at 763-276-0617.

Trust Us for Your Mini-Split Repair Needs

When you need mini-split repair or air conditioning repair in Elk River, call the company your neighbors and friends have relied on since 2019. Quality workmanship, reasonable prices and your comfort are our highest priorities! Contact us at 763-276-0617 to schedule your appointment today.