On 23 May 2005 10:15:43 -0700, wrote:

Well, unfortunately I'm still having problems with my garage door not
going down on warm days. I've scrutinized the tracks, but there's no
obvious point where the rollers bind. It goes up fine, it's only when
I try and lower the door that the garage door opener unit flashes and
the door reverses.

I experimented with blocking the sunlight from the infrared beams
without success, though I still haven't actually switched them out. But
my tests made me think the problem lies elsewhere.

Perhaps a good lubricating would do the trick? Should a special type
of grease or oil be used on the tracks, or would WD-40 work just fine?

-Fleemo

I haven't followed this thread too closely so perhaps you have already
tried closing the door manually. Disconnect the door from the opener.
There is usually (always?) a rope you can pull to disconnect the door from
the trolley on the opener. You can usually stick a small bolt, nail or
screwdriver through a hole to keep the spring loaded catch from engaging
the trolley while you are testing.

With the door open, push the door closed exactly like the opener would. A
properly balanced door will close with very little effort. The force
required to open and close the door should be about the same. If you
notice an extra effort is required to close the door, the door needs
adjusting and you should call a repair person to make the adjustments for
you. If the door goes down easily, the problem is either in the opener or
with the IR detectors.

I don't know what type of grease is suggested for the roller track, but
WD40 will not do any good. It might temporarily do a little good on the
the roller bearings but I doubt this is the problem since the door opens
without problem.