Heater temperature control doesn't work. on 1999 Chevrolet Lumina

Regardless of whether I set the control to hot or cool I get hot air all of the time.

by in Battle Creek, MI on June 17, 2013
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1 answer 1 comment
ANSWER by , June 20, 2013
my email is chevyase@aol.com please email me your email and I will send you a Diagnostic Worksheet to figure it out.
COMMENT by , June 20, 2013
goaliedavid5@comcast.net