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7 Common Mini-Split Troubles and How to Fix Them

July 12, 2021

Having mini-split installation done is a fantastic solution for solving comfort difficulties in your home. These systems don’t require ductwork to give energy-efficient heating and cooling. Like any other home comfort system, they can have troubles sometimes. Here are seven of the most frequent mini-split issues 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 might be an issue 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 spill. Call Three Rivers Heating & Cooling at 503-213-4433 for assistance and we’ll get your drain unplugged quickly.

2. Mini-Split is Making Noise

Mini-splits typically don’t create a lot of noise when they’re running. But there are two times where they may 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 turns on defrost mode to prevent itself from freezing over.

You shouldn’t be troubled if you hear these noises since they’re expected. However, if your mini-split keeps switching into defrost mode, it’s a clue that something is off, including low refrigerant, a bad circuit board or broken sensors. Your Three Rivers Heating & Cooling HVAC technician will be able to find and correct the problem quickly.

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 problem. Like we talked about previously, frozen coils could be the consequence of low refrigerant, a bad circuit board or defective sensors. Call us at 503-213-4433 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 home comfortable. These leaks must be fixed by a licensed HVAC tech, so contact us at 503-213-4433 for help.

5. Mini-Split is Not Dehumidifying

Much like an air conditioner, a mini-split is effective at dehumidifying during the summer. However, this could be halted by blockages 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 big will cool down an area 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 grab your attention 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 might have a mold issue. Have a professional like Three Rivers Heating & Cooling inspect and rinse the condensate drain and drain line, if necessary.

Vinegar

If your mini-split smells like vinegar or has a sweet odor, you’re possibly experiencing a refrigerant leak. Another sure clue that you don’t have ample refrigerant is a lack of cool air. Call us at 503-213-4433 for assistance.

Fish

If your mini-split smells like fish, the following things things could be wrong. In some situations this smell means there are electrical issues or that there’s a leak. Regardless, reach us at 503-213-4433 for support.

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 switch on. In the majority of experiences, putting in fresh batteries will resolve the situation. If you’re still running into trouble, reach us at 503-213-4433.

Trust Us for Your Mini-Split Repair Needs

When you need mini-split repair or air conditioning repair in Portland, call the company your neighbors and friends have trusted since 2019. Quality workmanship, reasonable prices and your comfort are our main priorities! Call us at 503-213-4433 to schedule your appointment right away.