2000 Pontiac Bonneville blower

Heater problem
2000 Pontiac Bonneville 6 cyl Two Wheel Drive Automatic 150k miles

The car sat without running for 2-3 months in the cold (minnesota) weather. Upon starting again, the blower would not work. There was a hot electrical smell the first time. I have replaced the HVAC fuse twice, even though it looked OK. I have concluded that is probably not the problem. What happens now when the fan switch is turned on, sounds like the blower tries to run, very sluggishly, two times for a couple of seconds, and then nothing. Turning the system off and trying again seems like it resets and I get the same result. Any ideas on what the problem is, and also how to get at the blower unit.
Thanks