"James Sweet" wrote in message
news:eGGvf.455$ww5.161@trnddc01...
wrote:
My first action would be to contact the mfgr and see what replacement
parts are available and costs, etc. Also ask for a schematic. Try
Googling on the model number.

H.R.(Bob) Hofmann

If they sanded off the numbers they most certainly won't supply a
schematic.

I'd first suspect cracked solder joints, if those are all ok then look
into the power component, almost certainly a triac which controls power to
the motor. If all else fails you could build a new speed control from
scratch, they need not be very complicated.

J is correct ... of components - look first at the Triac .. most TO-220
versions are 400 V or 600 V models at no more than 4 to 8 amps.

gb