Question about Coleman Propane Forced Air Heater w/Electronic Ignition (50,000-80,000 BTU)

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Central air unit

Unit keeps freezing over-we cleaned out front and back unit as instructed by a repairman but it still keeps freezing over

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Make sure you let the blower run for a while after it freezes to make sure there is no more ice. Then run the unit. Check the refrigerant lines the large copper line that has insulation on it should be cold to the touch. If it runs for 10 minuits and is barely cold or warm you are low on refrigerant. If its starts out nice and clod then check your filter and retun ductwork for blockage you should not have noisy return air vents or that can indicate you have too small a return.

Also are the outdoor unit and indoor coil a match? Same tonage?
Is the furnace big enough to handle the tonage? (fan size)

Posted on Jul 27, 2009

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