"Rich"

Don't bypass the unit, it's there for a reason! Even if you don't
have children or pets of your own, you never know who's going to pay
you an unexpected visit. Replace the unit with a universal unit:
http://www.new-garage-door-parts.com...e-devices.html

Not sure of the details of his opener, but it's likely these won't work.
These are designed to be retrofitted between an existing switch and an older
opener. Most modern openers, including his, it sounds like from how it's
behaving now, have a separate circuit that needs to be satisfied for normal
operation.

It's very unlikely any aftermarket products will satisfy the circuit. He
would likely be throwing away money.

Most of these sensors send a series of pulses to the main opener, so they
are not trivial to bypass. He could try - it may be as simple as shorting
the circuit as someone else mentioned - but it is unlikely to work if the
opener is less than 10 yrs or so old.

I would either cough up the cash or get a new opener. Actually, I would
bypass it, but I know a little more about electronics than most.

As someone also mentioned, it could be the aiming between sensor heads is a
little off. This is the most likely problem.


- Nate