Cause they're gummed up with ****. Need to disassemble them, clean them
with brake cleaner, and relube the end bushings.


s


"Bob F" wrote in message
. ..
I've seen a number of older exhaust fans that start very slowly. Turn them
on, they barely turn for up to several minutes, then finally speed up
fairly quickly to normal operating speed. Can anyone suggest why this
happens, and a way to fix them to operate properly?