Before you tear things apart, your best bet is to get the Helm manual. Then
study the electrical circuit diagrams. Sometimes the symptoms show up at the
motor, but the cause is intermittent wiring over by the driver's switches or
going through the driver's door.
Just in case it has poorly-touching contacts, generally from lack of
use, try holding the switch in the "down" position while bumping(with your
or someone else's fist) the door panel in several spots to hopefully make
one or more bumps occur as close to the pw-motor as possible. Sometimes,
this will make it begin working again. If so, be sure to use it several
times a day for next 2-3 days--about 15 times total over the extended
period--not consecutively whereas the contacts may overheat. Good luck, &
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