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Run jumpers to fan connector to test at full gallop
Posted by Lu (more from Lu) on Sat, 14 Dec 2002 21:13:28
In Reply to: Re: Classic bad fan motor symptom, how old is fan (nm), marty, Sat, 14 Dec 2002 11:23:54
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See if it starts lurching directly off of battery. If it is solid and steady, go to metering the output of the controller as it runs the fan. See if it has intermittent output. Follow on to its input signal measured to grd. That will see if ACC is giving good drive signal. Remember to visually inspect the regulator transistor in the controller. Cracked solder joints on the transistor leads.
posted by 12.221.113...
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