7 Common Mini-Split Issues and How to Repair Them

July 12, 2021

Having mini-split installation done is a smart way to solve comfort troubles in your house. These systems don’t require ductwork to provide energy-efficient heating and cooling. Similar to any other home comfort system, they can have issues occasionally. Here are seven of the most common 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 could be a problem with the condensate drain or drain line. It’s expected for a drain line to get clogged with mold, force water to back up and drip. Call Connolly Electric & Mechanical at 928-639-4251 for help and we’ll get your drain unblocked rapidly.

2. Mini-Split is Making Noise

Mini-splits usually don’t generate much noise when they’re running. But there are two times where they might create 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 worried if you hear these noises as they’re normal. However, if your mini-split keeps switching into defrost mode, it’s a hint that something is off, including insufficient refrigerant, a faulty circuit board or broken sensors. Your Connolly Electric & Mechanical HVAC technician 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, ice on the coils may be the issue. Like we talked about previously, iced-over coils may be the consequence of insufficient refrigerant, a failing circuit board or malfunctioning sensors. Reach us at 928-639-4251 for help.

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

If your mini-split is not cooling or blowing cold air, there might be a refrigerant leak. Your mini-split AC needs refrigerant to move heat and keep your home cool. These leaks must be fixed by a licensed HVAC pro, so reach us at 928-639-4251 for help.

5. Mini-Split is Not Dehumidifying

Much like an air conditioner, a mini-split is efficient at dehumidifying during the summer. However, this may be halted by blockages in the condensate drain line. Another reason your mini-split air conditioner may not be dehumidifying very well is if it’s oversized. A system that’s oversized will cool down an area too quickly without having time to dehumidify it. Mini-split size is based 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 may have a mold issue. Have a specialist like Connolly Electric & Mechanical 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 sufficient refrigerant is a low concentration of chilled air. Reach us at 928-639-4251 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. Either way, contact us at 928-639-4251 for help.

7. Mini-Split Will Not Power On

If your mini-split will not power on, check the remote first. If the batteries are bad, your mini-split won’t run. In the majority of experiences, putting in new batteries will solve the issue. If you’re still experiencing trouble, call us at 928-639-4251.

Rely on Us for Your Mini-Split Repair Needs

When you need mini-split repair or air conditioning repair in Cottonwood, get in touch with the company your neighbors and friends have depended on since 1997. Quality repairs, fair prices and your comfort are our top priorities! Reach us at 928-639-4251 to schedule your appointment now.