On Tue, 02 Jun 2009 19:06:46 -0400, wrote:

I installed a Genie Excelerator opener about 5 years ago. It has
worked well up until last night's nearby lightning strike. We lost a
variety of electronic things. The opener still works except for the
safety sensor system. The sending side is not lit and the opener acts
as one would expect - It opens just fine, but you must hold the button
to close it. Is there a common part that fails in these situations? I
can order a new board or a new set of safety sensors, but I thought
one of you might have a hint as to which one is more likely to have
failed. The voltage across the two terminals is only a few
millivolts. That points to the board, but I suppose one of the
sensors could have shorted. I think I'll go disconnect the sensors
and see what the voltage does. In the mean time, any input is
appreciated. ...Pat

Update to the above post... With the sensors (safe-t-beam)
disconnected, there is still no voltage at the terminals where the
sensors connect. I also noticed there is a green led flashing 5
times. The manual says that means a safe-t-beam fault. Anyone know
how to get to the circuit board? It looks like the whole thing must
be disassembled. I can see the board through vent cracks in the base
plate, but actually getting to it to inspect or change parts looks to
be very difficult unless there is a secret one of you knows;-) ...Pat