I described the problem at 2' and he
believe it needs new, larger springs.

Actually if they are using the same wire size & diameter spring the
newer spring would need to be shorter then the ones you have now for
them to have more lifting power w/ the proper amount of turns. Once
again it all depends on the weight of the door & the size of the drums.


Since you have a 16x7 it most likely has 4" drums, so you take the full
weight of the door w/ no tension & multiply it by .29 (that's point 29)
to get the IPPT (inch pounds per turn) of the springs. If there is 2
springs you divide the calculated weight by two & then look on a chart
to find springs w/ that IPPT & make sure that the springs are rated for
at least 10,000 cycles w/ 7-1/2 turns on them. (Most of our guys in
Florida weigh the door & then call in to the office to have someone use
a software program to calculate the proper springs). If it's done right
you should be able to easily lift the door off the floor & to the full
open position w/ one hand.

I'm not a big fan of DYI openers either, but if everyone had to use 5
different openers in 15 years (new one every 3 years on average) I
don't think anyone would continue to buy them & the stores wouldn't
carry them. They may not be the very best in my opinion, but they
should last alot more then 3 years.

Good luck in getting your door fixed properly!!! Unfortunately as you
have found out there are alot of people in this type of business that
don't have a clue how the doors are really suppose to work.

Doordoc