Simple question but all my HVAC stuff is in boxes. With the A/C unit on the E9s being kinda an afterthought, is it possible to direct dehumidified A/C air to the defrosters or not?
AC air to defrosters?
- Thread starter jefflit
- Start date
I'm thinking not, but I could be wrong.
AC will dry the air out so eventually it should defrost the windows if you have both heat and AC on.
AC will dry the air out so eventually it should defrost the windows if you have both heat and AC on.
Theoretically, yes, if the “vent” lever is thrown open, some chilled air can go back through the heater box and then out through the defrost vents or the floor vents. But it’s so little air that when I’ve tried to figure this out myself I could barely feel anything coming out at all. It’s bound to be warmed up by the heater core at that point also.
There is no way for the heater and AC fans to both operate at the same time.
Right. I noticed that on my 2002. As soon as you turn on the AC blower, the heater fan switches off.
