"horton" wrote in message
om...
Now that the weather has dropped to the low 30's, my garage door opens up
erratically. When it opens, it stops 1/4 of the way; then I reopen it
again and opens up 1/2 of the way, and so on. There's no problem closing
it, just the opening part. It doesn't do this during hot weather. I've
lubed all the necessary parts, to no avail.

Check the clearance of the door with the door frame behind the weather
stripping. If there is insufficient clearance, the door will bind when each
panel tries to make it around the corner at the top of the door. I had to
add a 1/4 inch spacer at each mount to get enough clearance because the wood
shrank that much from the time that the door was mounted in the summer when
it was hot and humid.

Also, if the door is wooden and you have experienced a lot of rain recently,
the door may have absorbed enough water to make it difficult to impossible
for the drive motor to lift the door properly.

Make sure that you are using the recommended lubrication and in the correct
places as some lubricants may actually become worse than no lubrication in
cold weather.