7 Common Mini-Split Issues and How to Repair Them

July 12, 2021

Having mini-split installation done is a fantastic way to solve comfort problems in your residence. These systems don’t have to have ductwork to provide energy-efficient heating and cooling. Like any other home comfort system, they can have problems occasionally. Here are seven of the most common mini-split troubles 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 expected for a drain line to be clogged with mold, force water to back up and drip. Call Lanz Furnace and Fireplace at 608-291-3606 for assistance and we’ll get your drain unclogged quickly.

2. Mini-Split is Making Noise

Mini-splits typically don’t make much noise when they’re on. But there are a couple of instances where they might create sounds.

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

You shouldn’t be worried if you hear these noises because they’re normal. However, if your mini-split keeps going into defrost mode, it’s a hint that something is off, like low refrigerant, a flawed circuit board or defective sensors. Your Lanz Furnace and Fireplace HVAC technician will be able to locate and correct the problem rapidly.

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 the issue. Like we discussed prior to this, icy coils can be the consequence of low refrigerant, a failing circuit board or broken sensors. Contact us at 608-291-3606 for support.

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

If your mini-split is not cooling or blowing cold air, there may be a refrigerant leak. Your mini-split AC needs refrigerant to transfer heat and keep your house pleasant. These leaks must be repaired by a licensed HVAC professional, so call us at 608-291-3606 for support.

5. Mini-Split is Not Dehumidifying

Much like an air conditioner, a mini-split is efficient at dehumidifying during the summer. However, this could be interrupted by mold in the condensate drain line. Another reason your mini-split air conditioner may not be dehumidifying very efficientlyis if it’s too big. A system that’s too big will cool down an area too fast without having a chance 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 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 could have a mold issue. Have a specialist like Lanz Furnace and Fireplace inspect 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 probably experiencing a refrigerant leak. Another surefire sign that you don’t have enough refrigerant is a lack of cool air. Call us at 608-291-3606 for support.

Fish

If your mini-split smells like fish, the following things things could be wrong. In some situations this smell means there is an electrical problem or that there’s a leak. Nevertheless, contact us at 608-291-3606 for assistance.

7. Mini-Split Will Not Power On

If your mini-split will not power on, look at the remote first. If the batteries are dead, your mini-split won’t run. In most experiences, putting in fresh batteries will solve the trouble. If you’re still running into trouble, call us at 608-291-3606.

Turn to Us for Your Mini-Split Repair Needs

When you need mini-split repair or air conditioning repair in Monroe, get in touch with the company your neighbors and friends have depended on since 1887. Quality service, fair prices and your comfort are our highest priorities! Contact us at 608-291-3606 to request your appointment right away.