Any number of culprits could be causing your car ac to blow cold then warm air including. If i have the truck running and use the heat then try to use the ac it will just blow hot air and will not switch back over to cold air.
My Car Air Conditioner Blows Cold Then Warm Completely
They left the car running in the service bay and quickly started to troubleshoot with me standing there.
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Car ac blows cold then hot then cold again. If i turn the knob to full cold max ac and high fan speed it will eventually blow cold air for several minutes. When it gets above 90 degrees out side it will start blowing hot. Said it sounded electrical by the symptoms.
Moisture in the ac system can also cause an ac blows cold then warm condition any time you lose refrigerant from your cars ac system that leak allows air and moisture to enter. Normal acs non inverter work in the following way the ac compressor runs continuously till set temperature is reached in the room the compressor then switches off but the blower fan in the wall mounter unit keeps running. Update 6122013 went back to honda yesterday when the ac was actively not working.
A leak in the ac system a small refrigerant leak is the most common reason a cars ac gradually loses its cool. If i use the ac and for some reason turn the temp control up too much it will start to blow hot air and wont switch back to cold. After an hour or two down the road the ac will swing from blowing hot air to cold air.
Durint this time t. If you simply add more refrigerant every year without fixing the leak you build up too much internal moisture. When driving the ac air will blow cold then not as cold and back and forth but will keep the cab cool.
This happens se read more. Questions about ac intermittently blowing cold air then hot then cold again. The frequency from hot to cold is that it blows hot about 1 2 minutes then cold for 5 10 minutes.
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