[Armstrongsmith]

I have 2 chamberlain liftmaster 1/2 hp garage door openers. One stopped working 2 years ago because the sensors are messed up, and now the 2nd one stopped working for the same reason. I tried lining them up next to each other so the beam of light would be totally aligned, but no cigar. I tried cutting the wires and completing the circuit, nothing. I thought I could just easily bypass the sensor by shorting it or whatnot. Not the case. Has anybody had trouble with these? Anybody know how to bypass the sensors so the door can go down again