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What causes my evaporator to freeze up - Heating & Cooling

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This can be caused by a few things.Check for a clean air filter. If the filter is dirty the air flow is slowed and lets ice form and over time the coils freeze over. The next thing to look for is a dirty evap coil. Same thing. if the coils are dirty the air flow is restricted and causing freeze ups. if this all looks ok then its time to call in the pro's. For environmental purposes all HVAC techs are citified to handel freon in the correct way. They will check the system for leaks and repair them followed by a freon recharge.

Posted on May 12, 2009


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dirty or obstruccted evaporator coil,
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and the most frecuent is LOW on R-22 Refrigerant. Check lines, look for wet looking spots and greasy/oily stuff on the lines.

Good luck!! Rate this post!!

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My condensor in the furnace ices up which restricts the airflow. Is this normal. When I shut off the air conditioner the ice melts and causes a minor flood in the furnace. thanks

The indoor coil or "Evaporator Coil" (condenser is the outside coil in air conditioning) should never freeze when an air conditioning system is installed, maintained and serviced properly.
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Please rate this solution.

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