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HVAC Mechanical Issues for Do-It-Yourselfers

Mechanical issues with an air conditioner often result in frantic calls to HVAC professionals or other local experts. Although problems shouldn’t be frequent, it is possible for many homeowners to perform do-it-yourself repairs instead of paying for professional assistance.

Clogged Filters

With use, air conditioner filters will accumulate debris. Anytime the unit stops cooling effectively, homeowners should remove the filter to check it. If it is impossible to see light passing through the filters, a simple replacement should have the HVAC unit working again without issue.


If cooling stops abruptly, the thermostat may have inadvertently been switched into the “off” position, or it may have been programmed to turn off. Consumers should verify that the thermostat is on and double-check its programmed schedule before calling for service.

Clogged Drain Lines

Drain lines route water out of the unit. Over time and with frequent use, these lines may accumulate debris and algae. By clearing the clog out of the line, homeowners can prevent costly water damage to air conditioners.

A little investigative effort may save money in HVAC repairs. If consumers cannot resolve problems, they should call a professional to fix the issue.

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