Every time I turn my heater on I have to shut the A/C light off. Is there a way to fix?

 

No.

There is a common misconception that "air conditioning" means "air cooling". Not true.

Using the air conditioner in conjunction with the heater dehumidifies the air. This makes the heat more comfortable, and keeps your windows from fogging up.

In fact, for quite some time all (nearly all?) cars kick the A/C on when you turn on the defroster, again to keep the windows clear of condensation.

It's not hurting anything -- don't worry about it.

 

Yep. Normal and a good thing.

 

Guess I could stop switching off then...

 

Now that's what I'm talking about! I keep turning the damn thing off and getting mad when I forget. At least it is supposed to happen.

 

put the air mode to your face, the ac will not auto turn on.

 

I'll let ya know how it goes

 

This always annoys me too. I know it is a good thing, but when the AC is on, one radiator fan runs all the time. I prefer my car to be quiter, so I turn off the AC. Please note I am using AC not in the air cooling way.

 

It's good to know it's supposed to happen. I've always turned mine off when I put the heat on!

 

Does it steal power if your in heating mode but the AC light is on??

 

moved

 

But does it eat more gas when the light is on?

 

Technically yes, but you won't notice it unless you drive around floored all the time.

 

I always wondered about this too. Now that I see what is going on, my first thought it "this is a very stupid design flaw". If I want heat, I want heat - not air or a humidifer!

 

What you think is a fan is the compressor from the AC. Compressor saps power. Even with power of the Z, if I wanted the compressor on I would turn it on. While many if not most cars have an "econ" button that keeps the compressor off or default to no AC, all I can think of is that there was no asthetic place to put the button on the climate control so they didn't do it. It's one of the few things I don't like about the car. I can take the trade off though.

 

My AC does NOT automatically come on. I do not use the AUTO function of the left **** though. I currently set it to the FEET position, and the AC does NOT come on. Now, if I switch to any of the defrost positions, it does come on.

Such a simple solution!

 

Your A/C compressor is designed to turn on in wintertime heat modes like DEF because it is lubricated by the refridgerant; and by leaving the car's A/C system dormant during the winter months it is likely the pump and/or other seals in the system will dry out and cause the all too common system leakage...Costing big $$$ to repair come summertime...
I'm pretty sure that the air in the wintertime is "dry" enough, especially up here in Canada, that the compressor is totally useless. However, it must be run for short periods for lubrication...

 

My a/c is comes on too now, when i dont want it.