Troubleshooting Ductless AC

Your Ductless AC Troubleshooting Guide in Gatlinburg, TN

June 25, 2025

Your ductless air conditioner in Gatlinburg, TN, will typically operate with high efficiency and low noise. However, similar to all HVAC systems, ductless air conditioners will still encounter occasional problems. Here are some tips for troubleshooting your ductless AC equipment:

The Ductless AC Won’t Turn On

If your ductless AC system doesn’t turn on, it may be as simple as a tripped breaker that you can reset. If that doesn’t solve the issue, contact your AC repair specialists to inspect the individual components to identify any problems with internal wiring.

Lack of Sufficient Cooling

When the ductless AC system isn’t cooling the room sufficiently, it may be an easy fix. In many cases, a clogged or dirty filter is the culprit. Clean your filters every two weeks to help prevent this issue.

There are instances where an undersized system doesn’t have the capacity to cool the space it’s in. In this case, your AC installation specialist will measure the volume of the space and recommend an appropriately sized mini-split.

The Ductless AC Leaks

Each ductless AC system utilizes refrigerant that flows through a condensate line from the outdoor condenser. Condensation builds up on the surface of the line, drips into a pan and moves into a drain. A clogged condensate drain forces water back into your system, which will cause it to drip onto the floor.

Compressor Malfunction

If your ductless AC system runs continuously despite the temperature you have it set to, there could be an issue with the outdoor compressor. Only an HVAC professional can address issues with this component, as this requires specialized skills. A repair or replacement is necessary to return the system to its intended efficiency.

When you notice that your ductless AC struggles to cool your home or seems to be malfunctioning, refer to these tips to remedy the issue. If you come to the conclusion that you need professional help, don’t delay in calling in the pros. Contact LB Chase Mechanical for all things related to ductless AC systems, including troubleshooting, maintenance and repairs.

Image provided by iStock

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