Check charge in lines-you can get a guage at most auto parts stores.
Check for fuel and spark to the cylinders
you should go to the place that you bought it from and let them replace it because if you do it you risk tripwireing the radio meaning that it wont work
if it is broken then take it in to the shop
They do this when the unit gets low on refridgerent. Which is r134-a.
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sounds like a blend door concern or vacuum concern
It starts cold
check the belts
so that u wont get flakes in ur hair
because its to cold
check your fuses for both problems.
must have air in the cooling system