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Frost on the AC Unit - Heating & Cooling

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  • scarel Jul 01, 2008

    Now the outdoor unit work but the blower inside is not blowing any air through the vents



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Plugged air filter
low refrigerant
blocked supply or return vents
incorrectly sized unit
failing compressor
restricted line set
plugged metering device
thermostat turned to low
stuck contactor relay
Failed circulatory blower motor
Failed indoor blwr run capacitor
improperly wired (or damaged) control wiring

That is about all I can come up with for your topic. Maybe we could narrow things down a little with some more information from you. Thanks!

Posted on Jul 01, 2008

  • Don Berry Jul 01, 2008

    We are starting to narrow things down a little. Does it sound like the inside fan is running? If it is running then that most likely the evaporator coil is frozen into a large block of ice. This will cause a reduction in air flow. Let me know.



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