Hot air from [near] pedal with A/C off... - ZR-1 Net Registry Forums

Schrade · 08-31-2014

What's the default position of the temp blend door, with A/C off?

I did about 60 miles yesterday, and on the highway, I could feel heat coming from under the dash, with the air off.

Does the temp blend door have a default position? Or does it stay where it last was? I remembered afterward that I had heat max'ed while idling in the carport, checking for exhaust leaks.

geezer · 08-31-2014

Possibly lost A/C logic. Try disconnecting Neg. Bat. for a minute or so , reconnect & test functions of control head.
If it doesn't reset go into the diag. mode by pressing & holding fan up & down at the same time for 5 sec. - 00- then push Auto Fan . The LCD will show any codes .
00 -no fault
01 or 02 Temp door motor circiut

other fault codes provided if you need.

Suspect the neg. bat. reset will solve this.

08-31-2014	#1
Schrade Join Date: Dec 2012 Location: NC Posts: 1,786	Hot air from [near] pedal with A/C off... What's the default position of the temp blend door, with A/C off? I did about 60 miles yesterday, and on the highway, I could feel heat coming from under the dash, with the air off. Does the temp blend door have a default position? Or does it stay where it last was? I remembered afterward that I had heat max'ed while idling in the carport, checking for exhaust leaks. __________________ I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG]

08-31-2014	#2
geezer Join Date: Aug 2010 Location: ottawa canada Posts: 156	Re: Hot air from [near] pedal with A/C off... Possibly lost A/C logic. Try disconnecting Neg. Bat. for a minute or so , reconnect & test functions of control head. If it doesn't reset go into the diag. mode by pressing & holding fan up & down at the same time for 5 sec. - 00- then push Auto Fan . The LCD will show any codes . 00 -no fault 01 or 02 Temp door motor circiut other fault codes provided if you need. Suspect the neg. bat. reset will solve this.