It most likely is low on refrigerant and needs to be recharges. It could be an electrical or mechanical problem, as well.
Another reason could be choking of the radiator cooling coils which blow hot air out from the back of your AC. This generally happens if the external part of your room AC is situated around potential choking materials lying loose such as waste, birds feathers etc. The radiator fan sucks such loose material into the radiator coils which get choked, resulting in back-flow of hot air of the radiator into your room. It also adversely affects the cooling cycle as the gas does not get cooled adequately, in the radiator.
The Air Conditioner is on
Well the main reason why your car blows out cold then hot is because the air conditioner may not be working properly. You should go to the car shop and get it fixed.
the system is probably out of coolant.
If the ambient (air) temperature rises and the A/C blows warm air, it probably means that you need to add freon.
Two basic reasons:The air conditioner is brokenThe air control doors that switch from hot to air-conditioning are jammed or broken.
Well, you can open it to find out. But mostly, you will know they are not working if the air conditioner blows hot air, or stops working all together.
Possibly needs recharged with refrigerant. You can check low pressure side with a guage.
An air conditioner blows out heat
Gert your air conditioner recharged.
Central Air Conditioners are installed into your house to provide cooling air in every room using a duct system. They are very refreshing on a hot day.
sounds like you need to replace either the thermostat or the temp control switch
Move to somewhere cold or take it to a repair shop and have the leak fixed and the refrigerant recharged.