[TR] very off topic

[Dave1massey at cs.com]

Most, if not all, openers have a spring loaded limit switch that will shut 
the system down if there is a hang-up.  I suspect that it is responding to 
an increasing stiffness in the system.  It may be, as you say, in need of 
grease.  Or maybe the spring adjustment has backed off a bit.  I'd start there. 
 If the door is opening easily then it probably is the opener.

Dave

In a message dated 12/6/2013 1:31:23 PM Central Standard Time, 
dave at ranteer.com writes: 
> anyone know anything about garage door openers?
> 
> mine works some of the time.
> 
> the rest of the time it opens maybe 6 inches and stops.  hit it again then 
> it
> closes.  if I pull the release I can open the door no problem.  not an 
> urgent
> issue because I only keep LBCbs in there.
> 
> does it just need grease or something?  or should I replace it?  doesnbt
> seem worthwhile to pay somebody to do that when supposedly Ibm a mechanic