5 Mini-Split Noises You Should Never Ignore in Crawfordville, FL

August 26, 2024

Ductless mini-split systems continue to gain popularity in Crawfordville, FL, because of their efficiency and excellent heating and cooling benefits. However, like any HVAC system, ductless mini splits can experience issues from time to time. Read on to learn more about ductless mini-split noises and what they mean.

1. Cracking or Popping

These common noises occur when the indoor air handler unit expands and contracts. Although it may sound concerning, it isn’t an immediate cause for alarm. However, if the sounds become louder or more persistent, you should have an HVAC professional take a look.

2. Rattling

Rattling sounds can originate in the outside condenser unit or an indoor air handler. Possible reasons for the rattling sounds include:

Loose air handler cover
Loose fan assembly in the outdoor unit
Debris in the outdoor unit

3. Gurgling

Mini splits have an internal thermometer that triggers defrost mode if the temperature around the outdoor coils gets too cold. The system does this to ensure proper heat transfer and prevent the unit’s coils from freezing up.

Generally, you don’t need to worry about this noise unless the unit seems to defrost continuously. If this happens, you might have low refrigerant levels, a malfunctioning control board or a faulty valve sensor.

4. Buzzing

Never ignore humming or buzzing noises, as they often indicate electrical issues such as a loose connection. These sounds can also indicate that the system is drawing too much electrical current. Turn off your mini-split system and schedule a repair appointment to figure out the primary cause and its solution.

5. High-Pitched Whistling

High-pitched whistling or humming can indicate a refrigerant leak. The issue may be just a faulty valve or hole in the refrigerant line, and repairing these is fairly easy. However, damage within the evaporator or condenser coils sometimes causes a refrigerant leak, which is much more costly to repair.

You want your system to run efficiently, so it’s best not to ignore noises. Call Advanced Air Care, Heating & Cooling LLC in Crawfordville, FL to schedule our ductless mini-split repair service today.

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