No blower on a 1986 Vette

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Jun 26, 2010 | 08:03 PM

rrwebster

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Instructor

Joined: Jun 2010

Posts: 116

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From: Webster Florida

No blower on a 1986 Vette

Just picked up my new toy...

if I push the buttoms for auto to bi-level etc I hear noises like stuff is moving but I don't have any blower action.

I just ordered a service manual... I removed all the connectors at the heater unit and blower and sprayed with contact cleaner... still nothing.

I push the heat and cool buttons and the temp changes...

Any thoughts?

thanks in advance for any input.

Robert

Jun 26, 2010 | 09:40 PM

rodj

Le Mans Master

Joined: Aug 2000

Posts: 8,838

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From: Australia

Try running 12V to the blower motor to see if it actually works first
if it does you have to work through the control side of wiring

Jun 27, 2010 | 12:15 AM

rrwebster

Thread Starter

Instructor

Joined: Jun 2010

Posts: 116

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From: Webster Florida

is that the single pole input or the two pole input?

Jun 27, 2010 | 01:19 AM

rodj

Le Mans Master

Joined: Aug 2000

Posts: 8,838

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From: Australia

Quote:

Originally Posted by rrwebster

is that the single pole input or the two pole input?

There is a plug on the blower motor.
Disconnect that and put 12V on one terminal and a ground on the other to see if motor runs

Jun 27, 2010 | 08:58 AM

AGENT 86

Team Owner

Joined: Jan 2003

Posts: 20,333

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From: Summerland B.C. Canada

Here is the HAVC electrical from my 86 FSM, should help diagnose the blower issue.

http://members.shaw.ca/dankai/HVAC%20Electrical.pdf

Here is more info on your HVAC, in case you need more info.

http://members.shaw.ca/dankai/HVAV'S.pdf