Hello! New poster here. Hoping I can find some assistance or new thoughts/avenues to try.

My wife and I purchased a home and inherited the malfunctioning garage door opener. The status when we viewed the home, was the latch for the trolley was zip tied so that the door wouldn't engage. Owner said they couldn't get it to work anymore. There is some minor damage to the aluminum slat door to the right side.

The garage door raised and lowerered by hand pretty easily. I then tried the unit (GDO, garage door opener) and it was able to raise the door, but would only close the door if I held the wall button down.

I replaced the photo eye because the sending unit was lit, but the receiver even right up against the sending unit was not lighting (both were green lights, but one never lit up). Upon using a Chamberlain replacement, the orange/green both light when placed next to each other.

After replacing eyes, the issue with needing to hold the button down to get it to close cleared up. However, my door now stops about a foot shy of the floor.

I have read the manual and viewed numerous posts on adjusting limits etc. I have messed with the down and up limits and even viewed the contact bar beneath the housing while the motor operates with both the trolley engaged and not engaged. It doesn't appear to me to be the limits or the down/up force, as I have tried all ends of the spectrum, lowest, highest, of each, etc.

However, when the trolley is not engaged with the door it works fine, goes all the way up and goes all the way down and stops where it should.

The tension springs look fine, no malformations or mishapen sections. The right track LOOKs okay, however the last wheel at the end (top) of the garage door has popped out of the track. I can put it back in and run the door, but it frequently comes out. I have tried to bend the track back but its too thick of steel. I've tried tightening bolts etc. and banging out the damage to the aluminum door. Again no real resistance when raising/lowering by hand.

My feeling now is that it is this track needing replacing or even possible the damaged panel on the door. I think it is having a similar effect that limit adjustment would, in that when the door reaches the point of the bent/damaged track, no matter of adjustment to limit or force is enough to tell the operating unit to continue putting the door down.

To clarify, when it stops a foot short, it also starts reversing back up, as if it doesn't have enough force down, etc.

Any insight would be awesome.

Also, Not sure if its from me messing with limits etc. or if it was there from years of use, but the nylon gear is worn. Not worn out yet, but there were a good amount of shavings. Still runs the door okay besides the last foot, but im sure it will need to be replaced soon.

Anyone here have any experience with tightness of the chain on the chain drive? Or adjusting the fastening arm from the trolley to the door? Would any of that have an effect on the force on the machine/limits?

paying another $50 for track would suck after paying 30 for new eyes, but it would be better than 150 for a new opener, new door, etc.

Many thanks!