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The Thermostat is not cycling the compressor off causing the evaporator to become solid with ice therefore decreasing the units ability to cool the air. Because air flow over the evaporator is greatly reduced due to ice blockage. Your coils are in need of a good cleaning or you have a leak in the system... probably the first. A good service call can get this done and is relatively inexpensive. This is something that an advanced handyman can do but i would suggest against it if you are not familiar with HVAC systems. Call A professional if possible... it will save you time and money in the long run. Hope this helps Terry

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โˆ™ 2007-12-18 01:59:28
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Q: What would cause the inside part of your air conditioning to frost over?
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Low freon, likely means you have a leak.

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I am working on my daughters but the first thing would be low on freon. Recharge it with a kit from AutoZone or similar store and ask them where the low side cap is. Read the directions on the can and just do it. If it takes freon, the can will get very cold and form frost.

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It is likely that the repeated freeze-thaw cycles would cause the crack or fracture to widen and lengthen hi.

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