AC will run fine for a few hours then stops blowing cool air

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Old 06-05-13, 09:52 PM
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Question AC will run fine for a few hours then stops blowing cool air

I have a split system, it is very old, but has run pretty well until now. I have cleaned the coils (inside) with a soft brush. It runs great for a few hours, the air is very cool but then it freezes up (I assume), and the air flow is very poor and it isn't very cool so I cut it off for fear of burning up my compressor. Does anyone have any idea what may be going on?
thanks for any help.
 
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Old 06-05-13, 11:11 PM
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Classic symptom of a low refrigerant charge. It is not a do-it-yourself job to add refrigerant.
 
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