I have a very old Genie model 404 garage door opener (Screw Drive)
does not work more than a few seconds and then dies. It does not lift
the door at all. Sometimes it runs for a couple of a second in one
direction and then a couple of seconds in theother and stops. Does
anyone know what may be the problem.
I repaired one several years ago that had a bad
optical rotation sensor on the end of the motor.
It's possible that the controller is detecting a
fault condition due to a bad sensor and shutting
down. If the controller has a current sensor, it
may be detecting a high current draw and shutting
It does not seem like that it has the power it used to have even when
it runs for a few seconds. My Genie is very old. Probably 70's or
1980's. Do you think it still has optical rotation sensor? Do you
think it's repairable or I should just get a new one. Do you think
the cold weather is causing it to act like that?
Without seeing the thing it's hard to say but
I've been repairing equipment for a long time
and an item that I would repair for myself may
not be cost effective for someone to pay me to
repair for them. Replacement parts for the 404
are readily available but I often wind up repairing
the bad circuit boards myself. The rotation sensor
which Genie calls an " Opto-Luctor" is not expensive.
In fact all the parts for the opener are not that
expensive if ordered online. The electrolytic
capacitors on the circuit boards and the motor can
go bad before anything else. If you think the motor
capacitor is defective, you could take it to an
electric motor repair/rewind shop and ask them if
they would check it for you. Here are some links
to parts suppliers and possibly a source of tech
support for any questions you may have.
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