Ron wrote:
After scanning many message boards about Sears/Craftsman garage door
openers, I found a lot of problems with their logic boards.

Yesterday I had a Sears technician troubleshoot a chattering
originating from the long screw in the channel (3/4hp screw drive
model), and he mentioned not to use 100w light bulbs due to excessive
heat, especially on the logic board side -- the one where the wires
connect. Even though my GDO is rated for 100w bulbs. He says the
heat is the main cause of logic board failure. He recommends only up
to 60w.
For some reason, that makes a lot of sense. Indeed with the 100w
bulb in there, the plastic casing even with the metallic reflective
foil became very hot.

SO, reduce the heat by using lesser wattage bulbs. Hmm...wonder how
compact flourescents would work.

BTW, the chattering...he squirted WD-40 (?!?) and declared the
sound as normal. Sucky tech, but at least got some good advice from
him.

Good advice about the lights. I always go one level lower than
specified on any fixture. In my garage I have compact florescent lamps and
they are working fine. The 11W spiral jobs fit fine and give more light
than the 40's I had before.

--
Joseph Meehan

26 + 6 = 1 It's Irish Math