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-   -   Low Voltage Light Switches...40 year old house (http://www.diychatroom.com/f18/low-voltage-light-switches-40-year-old-house-2011/)

derekspudich 03-08-2006 12:51 PM

Low Voltage Light Switches...40 year old house
 
I have been surfing the web and stumbled upon this website. I hope to post and check it often! Anyway, Has anyone encountered a 40 year old house with a low voltage system for the overhead lighting? All of my light switches are marked only with "3A 25V" and "Made in the U.S.A.". Does anyone know if these can be replaced (mine are in need of repair. Also, how does this system work and WHY was it ever used!? Any thoughts....Anyone???

joed 03-08-2006 05:51 PM

There is a master control box somewhere for this system. Those low voltage switches turn on relays in the master controller that actually turn on the lights. It was a early version of the computerized system you see now that allow control of any light from anywhere in the house.

The problem may not be the switch. It could be the relay in the master control box.

derekspudich 03-08-2006 10:41 PM

There is no problem with the system except for the discoloration of the relay switches and wall plates. Only one switch is currently bad and I know this because I can see that its broken. I know where the master control box is now (Remember seeing it in the attic when I re did the insulation). Does anyone know where you can buy these switches and wall plates? Also, does anyone know if their are any hazards with this type of system? Thanks for the quick response!:)

derekspudich 03-08-2006 10:48 PM

Also, any websites that discuss this type of system would be excellent also, since I have not been able to find out any information on them so far.

eleservtech 03-09-2006 06:56 AM

most of the switches ive seen like this are made by lutron. Try their website or find a electrical supplier in your area who deals with lutron. good luck

edmz 11-13-2007 05:33 PM

My house too!
 
I have the same system. It's kinda wacky. Have you found the switch covers for it?

-dave

derekspudich 02-11-2008 03:09 PM

I have not found anything on these switches. Thank God nothing has gone wrong with these switches or master control box yet! I would just like to replace these switches and make them the room look nicer. The switches are all brown and do not match the current look of the house.

InPhase277 02-11-2008 03:32 PM

Quote:

Originally Posted by derekspudich (Post 96970)
I have not found anything on these switches. Thank god nothing has gone wrong with these switches or master control box yet! I would just like to replace these switches and make them the room look nicer. The switches are all brown and do not match the current look of the house.

How many terminals does the existing switch have? Can the relay be operated by touching the wires togther that go to the switch?

If it is just two wires, then any single pole switch with at least the rating you stated should work.

InPhase277

chris75 02-11-2008 03:45 PM

You can check out this site, http://www.touchplate.com/ they were very popular in the day...

Here is a catalog, see if the switches look like yours...
http://www.touchplate.com/cutsheets/...07_low_res.pdf

220/221 02-11-2008 07:37 PM

Here is what your master control box will look like....probably in the attic.

http://i8.photobucket.com/albums/a8/...DSC01442-1.jpg


Good luck:laughing:

goose134 02-11-2008 10:04 PM

220, oh that's just evil. It MAY look like this:http://img155.imageshack.us/img155/6316/img04361xa2.jpg


Just kidding. This is an IBM lighting control unit from the 50's 220's image is the real deal, albeit a bit 'done up' shall we say?

rddrappo 12-27-2008 01:42 PM

Just stumbled upon this forum and this thread. A friend called me the other day, he has a low voltage system, and all the lights in the house are on, switches won't work. Does anyone know how to fix this?

Yoyizit 12-27-2008 03:52 PM

Quote:

Originally Posted by derekspudich (Post 96970)
Thank god nothing has gone wrong with these switches or master control box yet!
I would just like to replace these switches and make them the room look nicer.

You post schematic for master control, we fix if necessary.

Any wall switches should work to replace these 3A, 25v spec'd switches.

Those posted photos are probably from the hyperdrive control for the Enterprise.

chris75 12-27-2008 04:18 PM

Quote:

Originally Posted by rddrappo (Post 203120)
Just stumbled upon this forum and this thread. A friend called me the other day, he has a low voltage system, and all the lights in the house are on, switches won't work. Does anyone know how to fix this?


One of the buttons is probably stuck. They do that once they get old.

rddrappo 12-27-2008 07:49 PM

Problem solved. Turns out my buddy installed a regular decora rocker for his garbage disposal, and the switch was left on and the disposal unplugged. The switch was feeding constant power to the relay, just as a stuck switch would do. I turned it off, and everything works fine now. I got the satisfaction of telling him how easy a fix it was, and that he's slept with the lights on for two days for no reason!:thumbup: Thanks for your quick response, I appreciate it.


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