Crftsman garage door opener problems

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Hello,

My old Craftsman door opener was having problems closing, it was here
six years ago when I moved into the house so I have no idea how old
it was. It would open just fine, but after the weather turned cold
it did not want to close. I had the same problem last year so I decided
to just replace it.

On to the real problem:

I purchased a Craftsman door opener (model #53975) and tried to simply
replace the old unit with the new one. Things seemed to go well, it only
took a few hours to swap in the new opener for the old one and install
Sensor Beams. I expected to have problems with the beams but both lights
glow steadily with no flickering that I or my wife can see.

However the new unit will not close or open with or without the door. The
Inner Trolley (which is near opener) will move maybe 4"-6". Most of the
time it will than reversal itself and return to the starts point. A few
times it will stop and I have to hit the door control button to get it to return to it's starting point.

I used almost nothing from the new door kit, a few nuts & bolts along the
the Safety Sensors. I also used the new Control Console and new wires. I
had hoped no to have to use anything else but that may be what my problem
is.

Any advice will be greatly appreciated.

Thanks,

Ken Henderson