Spinning by hand, with the belt on, both fans will rotate freely, for a couple of seconds. At most, I hear a faint squeak on the driven one -- but when I first heard it last week, it was very loud, the way my idler pulley sounded about a week before it self-destructed.
I am going to assume, with the 3.2 (volts??) shown in the diagnostics, it should move freely, so rust or corrosion or dry grease or messed-up brushes/commutator is making that impossible, without giving it a push by hand.
I did not know the motor could be serviced. I will try that but will still buy a replacement, since I suspect I will need it
Quote:
Originally Posted by Diseasel300
Disconnect the belt and spin the driven motor. If it sounds rough, seems tight, the fan freewheels for a long time, or the bearings make a clicking/clanking sound as it spins, plan on replacing the bearings at a minimum. Good bearings will be smooth and quiet. They'll also have a very slight drag to them due to the grease inside.
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