hi charles, & any others interested...

i removed the "blower" per ur helpful instructions & found the "white fan"
to be full of, what looked to me like some sort of insulation; gray with
flecks of red, etc.

i removed the debris & wiped clean. this helped a lot, but there was still
a lil rumble so i removed the "middle silver diaphram" (motor?) via the 2
screws & removed any debri, etc.

now, i have 2 questions before i proceed.

1) i can't seem to get electrical current to blower. so i again removed
the "middle silver diaphram". there r 2 small silver squares attached to
copper wire + 2 springs. there r also 2 slots...
DO THE SQUARES SLIDE INTO THE SLOTS? they ARE NOT there right now. &
WHERE DO THE SPRINGS GO?

2) before i removed the "middle silver diaphram". the blower was still
rumbling a little. when i push up on the black housing, it seems to stop
(or get a LOT better). the 3 mounting screws only seem to get so tight,
thus the looseness seems to be causing a vibration.

is that the way the screws are, or could the housing be stripped where the
screws insert?

thnx again for any help,
frank