AC Repair
An AC not cooling in Parker, CO is most common on the hottest July and August afternoons, when the system is working its hardest. The fan runs, but the air from the vents feels warm or barely cool. Here are the usual causes and what you can check yourself.
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Low refrigerant. Usually caused by a leak. The system cannot move enough heat.
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Dirty condenser coil. Cottonwood fluff, dust and grass clog the outdoor coil.
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Failed capacitor. The outdoor unit hums but the fan or compressor does not start.
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Thermostat setting. Fan set to ON, or the system set to Heat or Auto.
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Frozen evaporator coil. Ice on the indoor coil blocks airflow.
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Set the thermostat to Cool, fan to AUTO, and a few degrees below room temperature.
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Replace the indoor filter.
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Check the breakers for the indoor and outdoor units.
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Look at the outdoor unit. Is the fan spinning? Clear away plants and debris.
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Gently rinse the outside of the condenser coil with a garden hose, with the power off at the disconnect.
If the AC is blowing warm air and the outdoor fan is not spinning, turn the system off. Running it that way can damage the compressor. A failed capacitor is the most common cause.
Call if the air stays warm after these checks, if you see ice on the lines, or if the outdoor unit hums without starting. Parker, Colorado has dry air and strong sun, so attic and upstairs rooms heat up quickly once the AC falls behind.
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You call the line and describe what the system is doing.
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Your call goes to an independent local HVAC contractor who serves Parker.
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The contractor asks a few questions and sets up a visit that suits you.
Common reasons are a dirty filter, a dirty outdoor coil, a failed capacitor, or low refrigerant from a leak. Check the filter and thermostat first.
If the outdoor unit is not running, the indoor fan only moves room air. A tripped breaker or failed capacitor is often the cause.
If it blows warm air or you see ice, yes. Turning it off can protect the compressor until a contractor looks at it.
AC still not cooling in Parker? Call (303) 647-3227. We connect you with an independent local HVAC contractor who works on air conditioners.
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