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Join Date: Sep 2011
Location: Florida
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Originally Posted by GHEN View Post
Hi all,

1987 NA 944. Looking at Clarkes Garage HVAC-01 there is a B/W photo labeled "HVAC system controls".

Switch #1 is labeled "Ventilation Switch".

2 questions:
  1. Is that the button with a small "arrow" shape on it?
  2. What does it do?

Additionally, my A/C and/or heater only blow when the fan switch (#3 on the aforementioned photo) is set at "4".

It won't blow at all on settings 1-3. Any thoughts?

As always thanks in advance!

Q2, it’s the blower resisters, they will need replacing or cleaning by soaking in vinegar, search there is a tutorial in here. They are attached to the blower motor assembly under the hood and they are easy to get to.
Mike A
1986 944 (Street); 1986 944 (Track); 1986 951; 1989 951 (3.0L 8V); 2000 996 Cab.
Old 09-30-2019, 01:59 PM
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