Excessive Amperage Broke My Fan !?

[drrogla]

You could posibly put a large capacitor paralel to the fan to filter the spikes I guess. Would this help guys?

 

[firebird67hotrod]

excessive amperage

Have you tried connecting the fans positive straight to the battery with an inline fuse, and the negatve to a switched relay. I have connected mine this way with no problems.

 

[Dean Huster]

The fan is controlled by a pic. It reads in the coolant temp sensor and triggers a NPN transistor to connect the relay coil to ground.

Talk about a Rube Goldberg overkill !! Next think you know, it'll be a PC running Vista to control the thing. Anybody ever hear of a thermostat?

 

[ke5frf]

Is it a North American term then?, it's certainly not a European one, and not something I've ever seen in any American texts.

I don't know about North American vs European, but an over-current condition caused by a motor with bad bearings or an over-burdened or seized rotor is often called "LOCKED ROTOR AMPS"...and we often use the term "amperage" to signify current draw with electrical systems, especially AC/home wiring etc, motors, contactors, and refrigeration.

Not so much with (ordinary) *electronic* circuits because they rarely draw more than an amp or two anyway.

As far as the fan motor is concerned, is this occuring in the wintertime or a cold environment?

The time frame wasn't specified.

I have a general motors vehicle that has a "secondary intake" fan associated with the manifold. I get a check engine every few months because I have a bad checkvalve that allows condensation to backflow and either rust the bearings or freeze and sieze the motor in cooler months.

Instead of replacing it for the third time I have decided it is an unnecessary nuisance warning with minimal effect on my fuel efficiency and emissions. I'm a year away from replacing the vehicle anyway.

At any rate, just a thought if Ice may be your culprit, or at least might have been for one of them.

 

[ke5frf]

Also remember, my question may be dumb for those of us in the Northern hemi who are just coming into the winter months, but I know Southern hemi posters abound here as well.

 

[tcmtech]

FYI this thread is about 4 plus years old since the last relevant post.

Odds are he doesn't have the car any more let alone the problem!

 

[Sceadwian]

It's all firebirds fault! Nahh not really. I thought electromaster was going to look into providing more obvious warnings and or locking threads that had reached a certain age.