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1990 NG air con / interior fan

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kempster1

Posts: 262

Joined: Sat Mar 05, 2005 12:32 pm

Location: King Island

Post Mon Jun 09, 2014 10:50 pm

1990 NG air con / interior fan

Air con fan has stopped working....
Can not find a fuse or an online wiring diagram ...

Any help with common issues or a wiring diagram for the fan before I pull things apart?

Peter
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date

Posts: 529

Joined: Tue Jan 15, 2008 1:33 pm

Location: Cooma NSW

Post Tue Jun 10, 2014 5:15 pm

Re: 1990 NG air con / interior fan

Does the fan work on High setting only? If it does, it is the resistor which controls the fan speed. The resistor will be located in the underside of the fan casing and will have several wires going to it. You will get access to it from under the evaporator unit inside the cabin.

If the resistor bank is stuffed, the obvious place to look is a wrecker - a later model resistor bank would probably fit. If you are a real tightarse (like me, who enjoys a challenge), you can get some resistance wire and make your own resistor. It will probably be the first stage resistor (there will be 3 stages). The hardest bit is getting good contact because soldering resistance wire is a very hard job to do. From memory, the first resistor stage was about 3 ohms. The resistor coils protrude into teh fan housing and use the airflow to cool the resistors.
<<

kempster1

Posts: 262

Joined: Sat Mar 05, 2005 12:32 pm

Location: King Island

Post Tue Jun 10, 2014 10:19 pm

Re: 1990 NG air con / interior fan

Fan does not work on any speeds...
Have managed to find a wiring diagram today...

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