Old 04-16-02, 09:02 AM
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Question Ice

I opened my A/C unit to find ice on the coils and compressor. I did this because I wasn't getting much A/C. Using the hose, I cleaned off all of the ice and cleaned out the inside of the unit. I also changed the filter. What caused the ice? Can I expect this to occur again when I turn on the unit? I'm keeping the unit off all day to make sure it is defrosted. The unit is a Heil model PA 95

Last edited by ramcat; 04-16-02 at 09:49 AM.
Old 04-16-02, 11:02 AM
Mike Swearingen's Avatar
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I'm not an HVAC pro by any means, but usually ice is due to poor air flow, low freon, etc.
If you've cleaned the coils, have you had the freon checked?
Old 04-16-02, 12:39 PM
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Check your indoor coil--it could be dirty--this will also cause ice.
Old 04-16-02, 02:39 PM
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Haven't had the freon checked yet, but I have noticed that the fan keeps running even when the A/C is turned off at the tstat.
Old 04-16-02, 06:57 PM
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Either your t-stat is in the on postion for the fan, or you'll need to check your fan relay to see if it is stuck shut.
Old 04-18-02, 08:26 AM
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It seems the problem was in the wiring. For some reason, a short developed between the hot wire (RED) and the Compressor (YELLOW). Luckily, there was an extra wire (BLUE), so I exchanged them and everything works fine. Thanks for all the suggestions.

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