I have just fought my last fight with diy garage door openers! The motor
holds up, but the door refuses to open OR close when cold weather comes in.
I have had the door checked several times and it is fine. I am now looking
at the Allstar MVP opener or the Chamberlain LiftMaster opener, either to be
installed and maintained by a garage door company. If there are any
problems, let THEM take care of it. The Allstar is all metal gears, but I
can not find any info about the Chamberlain. The Allstar is a full roller
chain, no cable. The Chamberlain is the belt drive. The Allstar 20 year
warranty covers the entire drive train and only 2 years on the electronics.
The Chamberlain's lifetime waranty covers only the motor and belt, and 5
years on everything else. The Allstar supposedly has a "shock-absorbing
door arm" to "soak up the sudden stops and starts of typical use, protecing
the door and opener," however I see nothing in the manual about this arm.
Anybody have any personal experience with either of these units? Thanks.