7 Common Mini-Split Problems and How to Repair Them

July 12, 2021

Having mini-split installation done is a great solution for solving comfort troubles in your house. These systems don’t require ductwork to provide energy-efficient heating and cooling. Much like any other home comfort system, they can run into troubles sometimes. Here are seven of the most typical mini-split issues and how you can fix 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 problem 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. Reach Northern Comfort Inc at 507-387-6596 for support and we’ll get your drain unblocked promptly.

2. Mini-Split is Making Noise

Mini-splits usually don’t create a lot of 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 switches into defrost mode to prevent itself from freezing over.

You shouldn’t be alarmed if you hear these noises as they’re normal. However, if your mini-split keeps switching into defrost mode, it’s a symptom that something is off, including insufficient refrigerant, a faulty circuit board or broken sensors. Your Northern Comfort Inc HVAC technician will be able to pinpoint and solve the problem fast.

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 mentioned prior to this, icy coils could be the effect of low refrigerant, a bad circuit board or malfunctioning sensors. Reach us at 507-387-6596 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 move heat and keep your home cold. These leaks must be fixed by a licensed HVAC pro, so call us at 507-387-6596 for support.

5. Mini-Split is Not Dehumidifying

Similar to an air conditioner, a mini-split is effective 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 oversized. A system that’s too big will cool down a room too fast 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 grab 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 Northern Comfort Inc 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 probably encountering a refrigerant leak. Another sure clue that you don’t have enough refrigerant is a lack of cool air. Contact us at 507-387-6596 for assistance.

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. Regardless, reach us at 507-387-6596 for support.

7. Mini-Split Will Not Power On

If your mini-split will not power on, examine the remote first. If the batteries are dead, your mini-split won’t turn on. In the majority of instances, putting in fresh batteries will solve the trouble. If you’re still experiencing trouble, call us at 507-387-6596.

Turn to Us for Your Mini-Split Repair Needs

When you need mini-split repair or air conditioning repair in Mankato area, call the company your neighbors and friends have trusted since 1975. Quality workmanship, fair prices and your comfort are our highest priorities! Call us at 507-387-6596 to request your appointment today.