James,
Yes it was me.
First you should measure there is voltage inside the switch. As you now know
how to open it, that's I think the easiest way.
If not the feeding circuit is faulty - check the diagrams.
If there is voltage, have the swithc reassembled and then you should use
your ears very well: when the rocker of the switch (mine at least) is rocked
slowly, it does not actuate the contacts. flip the rocker quickly and you'll
hear the contacts move!
When this works, measure there is voltage on the fan motor.
If not - there is something wrong in the circuit from the switch.
If ok - check the motor (brushes etc.)
Easy motor check is to use a separate 12V source for the motor. This can be
obtained from the fusebox f.i.
Good luck.
Cheers,
Hans
p.s. sorry for the late reply - I have some other time priorities
-----Original Message-----
From: James Schulte [mailto:schultejim@prodigy.net]
Sent: Friday, November 09, 2001 6:03 PM
To: paul.hunt1@virgin.net; Mgs@autox.team.net
Subject: Re: Heater switch and fan.
Paul,
I found a new switch in my box of goodies and it worked fine. I also
cleaned the old switch inside and out with electrical spray cleaner and
dabbed it with dielectric grease on all contact points (as suggested by
another lister, I think it was Hans) and it works as well. However the
fan still does not. I cleaned and greased all points on the fan with no
luck. How do I take the fan apart and check the insides?
Jim
78B
70B
paul.hunt1@virgin.net wrote:
>Your diagnosis of the switch seems ok, but when you jumpered the switch did
>you still have good voltage on post 1? A high-resistance on the green
could
>supply enough power to light your lamp but not to power the motor.
>Similarly did you check that you had voltage at the connectors by the fan
>motor? If you have voltage on both the green/yellow and the black the
>problem is a bad ground. If it is on neither it is bad wiring between the
>switch and the motor. If it is on the green/yellow but not the black it is
>a bad motor, but always check both sides of ther bullet connectors.
>
>PaulH.
>
>
>
>
>>Hi gang,
>>I think I have a bad heater switch and a bad fan for the 70B. I'm using
>>a test light to check this so stick with me. I get power from the double
>>green wires on post 1 of the switch when I turn the ignition on. When I
>>flip the switch to on , no power transfers to post 2 or 4 on the
>>switch. If I jump the switch and connect the green and the
>>green/yellow wires, I get power to the fan but the fan doesn't run. I
>>disconnected the ground wire from the fan and tried to ground that wire
>>to a body bolt that was unpainted. No luck. I conclude that the fan is
>>bad and the switch is bad. Am I right or is it another problem I'm
>>
>missing?
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