Why is it that when one defrosts the windscreen of a car,(full heat) the A/C compressor kicks in. This happens to all the cars I have driven with Air Conditioning.
2007-01-27 21:57:22 · 4 answers · asked by l1011graham 2 in Cars & Transportation ➔ Maintenance & Repairs
This is on all cars with A/C. Reason is the as the outside air is drawn in it goes through the A/C and the moisture condenses on the elements. Then through the heater core and gets warm. So you have warm DRY air to defrost your glass.
Ever see a car on a hot day sitting, idling with the A/C on and water dropping on the ground? Same principle, the moisture in the air condenses on the A/C before entering the cockpit.
Easy Cheesy.. have a good day
2007-01-27 22:10:55 · answer #1 · answered by shovelkicker 5 · 2⤊ 0⤋
Shovelkick gives a good explanation of why you hear the A/C compressor running in defrost. And he,s exactly right.
2007-01-28 00:06:52 · answer #2 · answered by Iknowthisone 7 · 0⤊ 0⤋
You may be hearing the blowers kicking in not the a/c.
Does it feel like cold air is blowing unto your windows.?
Check your settings in your car..or have your thermostat check to see if it is working properly.
2007-01-27 22:05:12 · answer #3 · answered by Angus. 4 · 0⤊ 5⤋
Just as shovelkick said.....
2007-01-27 23:01:23 · answer #4 · answered by Anonymous · 0⤊ 1⤋