David Scheidt wrote:
> I took the bottom cover off. No stripped gears (they've still got
> grease on them!), rpm sensor eyes are clear (I even cleaned them),
> limit switches aren't jammed. I can rotate the motor shaft by hand,
> and it feels smooth, with no notches or slop. That says "electronics"
> to me. New logic board is $90, available next week. New opener is
> somewhere between $150 and $300, can get it today. Wonder if they
> still sell one that will fit all the mounting brackets?
Darn! Thought for sure we'd have ya fixed up?!
Could also be bad wiring to the sensors. Mine had all the wires brought
together and the conductors (2 or 3 22ga) twisted together and stuffed
under the screw terminals, which was flaky. I crimped some spade lugs
on short sections of wire and brought those out above the unit, and made
the connection with wire nuts and zip-ties.
I was seeing circuit boards for $30 and less, with some shopping around.
Is it a chain-drive? The current Chamberlain ones available at Lowes
have a fancy looking housing, but the mounting rails *might* be
compatible. If I could have bought the identical unit lcoally and just
bolted the "box" in place and not screwed with the trolley, brackets,
hangers, etc I would have gone that route.
-Wayne
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