7 Common Mini-Split Troubles and How to Repair Them

July 12, 2021

Having mini-split installation done is a good approach to solve comfort troubles in your home. These systems don’t need ductwork to provide energy-efficient heating and cooling. Much like any other home comfort system, they can run into issues sometimes. Here are seven of the most common mini-split troubles and how you can solve 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 be clogged with mold, force water to back up and drip. Reach M & S Heating & Air LLC at 301-363-4699 for support and we’ll get your drain unplugged rapidly.

2. Mini-Split is Making Noise

Mini-splits usually don’t make much noise when they’re operating. But there are a few instances where they could make sounds.

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

You shouldn’t be worried if you hear these noises because they’re expected. However, if your mini-split keeps turning on defrost mode, it’s a sign that something is wrong, including insufficient refrigerant, a bad circuit board or malfunctioning sensors. Your M & S Heating & Air LLC 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 could be to blame. Like we mentioned previously, icy coils could be the effect of insufficient refrigerant, a bad circuit board or defective sensors. Call us at 301-363-4699 for assistance.

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 uses refrigerant to transfer heat and keep your home cool. These leaks must be repaired by a licensed HVAC professional, so call us at 301-363-4699 for help.

5. Mini-Split is Not Dehumidifying

Much like an air conditioner, a mini-split does a great job at dehumidifying during the summer. However, this might 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 too large will cool down a room too fast without having time 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 tell you that something is wrong. Here are five of the most typical 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 pro like M & S Heating & Air LLC check and rinse 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 sufficient refrigerant is a weak flow of cool air. Call us at 301-363-4699 for help.

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 301-363-4699 for support.

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 the majority of experiences, putting in new batteries will solve the trouble. If you’re still running into trouble, call us at 301-363-4699.

Depend on Us for Your Mini-Split Repair Needs

When you need mini-split repair or air conditioning repair in Mechanicsville, contact the company your neighbors and friends have trusted since 2012. Quality service, fair prices and your comfort are our top priorities! Call us at 301-363-4699 to book your appointment right away.