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With the info you provided it sounds like you have a issue with a low refrigerant charge or a restricted air flow a the furnace, this will create a freeze up effect at the indoor coil. look for ice buildup at the indoor and outdoor unit where the copper lines attaches to the unit. If you do..
1- Make sure you have a clean filter in your furnace, if it is very dirty, shut off your ac unit for a few hours to let ice melt with only the indoor fan running.
2- With a clean filter try the AC and look at the outside copper lines, the big one should be wet and cold, with no ice and the small one should be warm, and top fan should be exhausting warm air.
3- After doing step 1 and 2 you still have issues, you are probably low on refrigerant and will need service.
Best regards ***** ***** and your close ones, have a nice summer.