A word of advise from my experience: Chances are you wil see some rust when you get the motor out the blower plastic assy. Clean it thoroughly using an electric (not electronic) cleaner spray before lubbing it. You probably will need to repeat the lube process after a month or so, but that's better that having to pay for a new blower motor.

Same happened to mine 3 weeks after warranty expired, did the process described, and no further problems so far, and it saved me about 120$