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Tbone95 
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Joined: 31 Aug 2012
Location: Michigan
Points: 11688
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 Topic: Garage Door Safety Beam
Posted: 18 Jan 2025 at 9:54am |
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How do you semi-permanently defeat these? Is it simply a switch inside? Is just 2 wires each…Are the sensors typically interchangeable between brands? Got one Genie (not working right) and one Stanley working that I could use for troubleshooting. Need to be frugal for now!😎
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sparky
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Joined: 13 May 2011
Location: So. Indiana
Points: 1612
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Posted: 18 Jan 2025 at 10:53am |
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Mount them together nose to nose.
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It's the color tractor my grandpa had!
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Tbone95
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Location: Michigan
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Posted: 18 Jan 2025 at 11:31am |
Yeah, in the process of doing that I ended up finding the broken wire!  Thanks
Edited by Tbone95 - 18 Jan 2025 at 11:35am
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
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Posted: 20 Jan 2025 at 11:58am |
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Mine are up above a couple inches apart. Small children and pets beware....
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Tbone95
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Posted: 20 Jan 2025 at 12:45pm |
 SteveM C/IL wrote:
Mine are up above a couple inches apart. Small children and pets beware.... |
The question really comes down to, if you had a bad one, can you fool the unit into thinking everything is fine.
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Harvey/pa
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Joined: 11 Sep 2009
Location: York Co. Pa.
Points: 1019
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Posted: 20 Jan 2025 at 1:15pm |
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mounted mine above the door on the header pointed at each other, has worked for 30 years...Harvey
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
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Posted: 20 Jan 2025 at 4:05pm |
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Tbone, i dont thing you can " wire around it".... everyone just tapes them looking at each other...... If one goes BAD, i think you are screwed..
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Like them all, but love the "B"s.
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Gary
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Joined: 13 Sep 2009
Location: Peterborough,On
Points: 5529
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Posted: 20 Jan 2025 at 9:58pm |
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I found this on the internet, SO IT MUST BE TRUE !
G
Use Reflective Materials
Reflective materials can be employed to bounce the infrared beam back to the sensors, creating the illusion of an uninterrupted path. For garage door sensor bypass. place reflective tape or similar materials on surfaces near the sensors to achieve this effect.
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steve(ill)
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Posted: 20 Jan 2025 at 10:03pm |
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that does NOT eliminate the sensor... that was his question.. reflexting the beam is useless... WHY ?
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Like them all, but love the "B"s.
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Tbone95
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Location: Michigan
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Posted: 20 hours 33 minutes ago at 8:28am |
steve(ill) wrote:
Tbone, i dont thing you can " wire around it".... everyone just tapes them looking at each other...... If one goes BAD, i think you are screwed.. |
Thanks Steve, I figured as much. As I mentioned, I found a broken wire and everything is working now, but while my thinking was getting ahead of my doing I was wondering if they could just be eliminated.
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Les Kerf
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Joined: 08 May 2020
Location: Idaho
Points: 900
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Posted: 11 hours 34 minutes ago at 5:27pm |
Tbone95 wrote:
steve(ill) wrote:
Tbone, i dont thing you can " wire around it".... everyone just tapes them looking at each other...... If one goes BAD, i think you are screwed.. |
Thanks Steve, I figured as much. As I mentioned, I found a broken wire and everything is working now, but while my thinking was getting ahead of my doing I was wondering if they could just be eliminated. |
I would have to study a schematic but there has to be a way to wire around it. It is simply sending a go/no go voltage.
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jaybmiller
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Joined: 12 Sep 2009
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Posted: 11 hours 26 minutes ago at 5:35pm |
um, it might not be a steady beam..... I've seen them where the beam is actually pulsed ( high frequency ) so someone with a flashlight can't 'fake' the beam to open the garage door.
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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steve(ill)
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Location: illinois
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Posted: 11 hours 16 minutes ago at 5:45pm |
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its not an ON- OFF switch... If the door is OPENING and you stand in front of the beam, nothing happens... If the door is CLOSED and you stand in front of the beam, nothing happens.. If the door is MOVING DOWN and you stand in front of the beam, the door reverses direction.... There is LOGIC involved... not just OPEN- CLOSE ( on - off).
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Like them all, but love the "B"s.
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Les Kerf
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Joined: 08 May 2020
Location: Idaho
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Posted: 9 hours 30 minutes ago at 7:31pm |
jaybmiller wrote:
um, it might not be a steady beam..... I've seen them where the beam is actually pulsed ( high frequency ) so someone with a flashlight can't 'fake' the beam to open the garage door.
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Yes, I worked with photo eyes for years in the sawmill business, there are many types of photo eyes and not all of them use visible light, various frequencies, etc. The 'logic' is dealt with at the controller, the photo eye just says 'blocked/not blocked'.
Lacking the schematic and the ladder diagram it is difficult to know just where to tap into the system to defeat it. Maybe not a good idea anyway  |
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