Are they 3 phase blowers or 2 phase blowers? Generally you can use an ohm 
meter to verify that the coils are not open, if they are then the only 
choice is to take them apart and re-wind them. Any good electric motor shop 
can do this (they could also make them two phase for you :-) Look up 
appliance repair for a place that repairs industrial fans and blowers. Also 
they are probably replaceable...

--Chuck

At 04:23 AM 5/30/01 +0000, Gunther Schadow wrote:
>Hi,
>
>I've two VAX 6000 in my garage. I have 6 blowers (larger about
>10" diameter), each machine needs two blowers, but only 3 of
>the blowers I have work.
>
>The machines have been turned off to be replaced and were at
>a good storage room anywhere between 6 and 2 months before I
>got them and tried starting them up. Seems like after
>having spun for 10 years 24/7 those blowers did not tolerate
>the long rest at all. Now they are dead. What can I do?
>
>The blowers still turn easily by hand and look completely
>innocent. There is no smell or sound or anything. Just won't
>turn. Even if I help them start manually I do not sense
>noticeable sustained rotation when power is applied to them.
>There is no externally visible dirt, much less than on a PC's
>blower after only two years of home use!!
>
>I could open them up and look, but maybe some wizard here
>can give me some more targeted ideas. With 3 out of 6 this
>seems to be a more common problem! I'm afraid they are non
>replaceable so I must repair them somehow.
>
>thanks
>-Gunther
>
>
>--
>Gunther Schadow, M.D., Ph.D.                    gschadow@regenstrief.org
>Medical Information Scientist      Regenstrief Institute for Health Care
>Adjunct Assistant Professor        Indiana University School of Medicine
>tel:1(317)630-7960                         http://aurora.regenstrief.org