thats exactky what was happening with mine that got me so fed up. to add to it, the whole running while the starter was cranking. it really got to me...

take care,
adam

relay and temp sensor
 

you can buy a relay and temp sensor at your local autozone comes with a temp sensor and a relay.
run the main power directly to your battery, use a strong ground,use an acc. position in your fuse box or find a wire under the hood that is only on with the key (make sure it has a constant 12volts) also run a lead from your a/c so when your a/c comes on the fans automically come on.
the part is made by hayden automotive
listed by imperial automotivepart number 226206 fan controller
instructions come with it the only thing i didn't like and did not follow instructions on was thermostat mounting.
also automatically turns the fan on when the temp gets to 195 and shuts off at 165.
put dual electric fans on my f-150 using this kit and love it
good luck ;)

That was the single best reply in this entire thread. He is absolutely right.

Take care,
-Chris

if i had a fan without a temp control on it already i would do that. but with the fragile electronics the black magic fans have its not possible...

thanks,
adam