H Halftrack New member Joined Feb 22, 2015 Messages 10 Reaction score 0 Points 0 Location Alabama Jan 14, 2016 #1 The AC light flashes on and off when I turn on AC. AC does not work.. 1991 GMC Sierra 1500.. Replaced HVAC control abut 1 year ago with same problem. Now I have the same problem with the new HVAC control... Any suggestions???
The AC light flashes on and off when I turn on AC. AC does not work.. 1991 GMC Sierra 1500.. Replaced HVAC control abut 1 year ago with same problem. Now I have the same problem with the new HVAC control... Any suggestions???
M Mjordanlmj New member Joined Jan 24, 2021 Messages 1 Reaction score 0 Points 1 Jan 24, 2021 #2 Low on freon will cause it to flash
