RE: Heater control and Bently [84 5000]

["Livolsi, Stephane" <livols1@investorsgroup.com>]

Same problem on my 86 5KTQ. Here's one thing that I found....

pull out the control head (in the dash, with the buttons and lights) and
unplug it.  Now take a look at the silver contact material on the
control head where you just removed the plug.  On mine, a large portion
of some pins was flaked away and I figure is probably not making good
contact. HTH

Regards

Stephane Livolsi
180 Yorston St
Williams Lake, BC, V2G 3Z1
ph 250-392-2637
fax 250-392-2693

'86 5KTQ stock (if you don't know what it means, you aren't in the club)


>----------
>From: 	Ameer Antar[SMTP:ameer.a.antar@uconn.edu]
>Sent: 	November 9, 1999 9:00 PM
>To: 	quattro@audifans.com
>Subject: 	Heater control and Bently [84 5000]
>
>I just joined the list. I have a problem with my heating system. I've been 
>told many times to get a Bently, but I can't afford the $100+ bucks for a 
>new edition and I can't seem to find anyone who has an old edition [single 
>volume] that they have an extra of. If there's anyone who has one for a 
>reasonable price, I'm interested. Now for my problem:
>
>I bought an 84 5k turbo [non-quattro] for $500. When I got it, the A/C head 
>control unit display was intermittent. I could still use the buttons to 
>change from say economy to defrost even without the display working. I 
>figured it was loose wires, but I checked them all with no luck. Now the 
>display never comes on, and I can't dial in any settings. No heat and it is 
>cold in CT! I opened the head unit looking for loose wires or bad 
>components, but everything was perfect. I even resoldered all the joints. 
>There may be a bad transistor or chip but I can't tell.The blower motor 
>works fine when I put 12v across it, so the motor is fine, but I still 
>can't get the system to work at all. I was told it could be the programmer 
>or the blower motor controller. I looked at these components and they seem 
>to LOOK fine. What usually goes bad in situations where this absolutely no 
>display on the head unit? I would think I had a bad head unit, but maybe 
>the head unit display requires the programmer and blower motor control to 
>work. What test could I do on the system to try and narrow down my 
>possibilities? I can probably get these parts from salvage yards, but I'd 
>like to spend my money on what I abs. NEED to, which I realize is hard to 
>do on these cars.
>Also, some more info. When I got the car it would always put out hot air. 
>The programmer usually controlled the vac. valves correctly, but 
>sluggishly, but mainly had problems moving the lever which controlled the 
>heat level. You could manually push the lever over to cold sometimes, but 
>other times it would not budge. I took off the programmer and the motor 
>assembly. The gears inside look fine as well as the motor and brushes. 
>However it was near impossible to move the gears using the lever, but if 
>you turned the motor manually the lever slowly turned with no resistance. 
>Maybe it's like that due to all the gear ratios. The weird thing is that 
>the motor is intermittent. When I applied 9V across the motor directly it 
>wouldn't always run. Coaxing it doesn't usually help. There was sparks 
>across the terminals so maybe there is a short, but when I opened the case, 
>the brushes and commutator look fine, I think. Any tips on this assembly or 
>should I just get a salvage unit and replace the motor?
>Thank you very much for taking your time out to read this. Any help is much 
>appreciated.
>
>
>a m e e r a n t a r
>
>http://24.8.96.139
>