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Unknown switch with LCD display

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[#1] Posted: 04/25/2012 - 5:07:10 PM
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I ran into this dimmer-looking switch for the second time, first time it's outside a bathroom of a 5 year old town house. I thought it was some kind of control for the bathroom fan, but didn't seem to be working. This time it's on a 3 year old high rise condo, inside a closet that facing front entrance door, still looked the same, still seemed not controlling anything.

Does anyone seen this before and know what is it for?

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Severna Park, Maryland
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Unknown switch with LCD display
[#2] Posted: 04/25/2012 - 5:35:41 PM
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Looks like a programmable switch. Maybe for radiant floor heating.
John Dirks Jr - Arundel Home Inspection LLC - MD license: 29827
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Unknown switch with LCD display
[#3] Posted: 04/25/2012 - 5:51:27 PM
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It's just a digital wall switch timer. Very commonly used for controlling outdoor lighting.
Bill Kibbel, Historic & Commercial Building Inspections - Old House Resources
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Unknown switch with LCD display
[#4] Posted: 04/25/2012 - 6:09:55 PM
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Intermatic EJ500C Indoor Digital Wall Switch Timer

Similar models by Honeywell and Westek. Probably everybody else too.
The programmable controls are under the white plastic square portion that also serves as a touch on/off pad. Pry it off to access.

Download Attachment: intermaticej500c.pdf
695.81 KB

Bob Kenney
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"We are masters of the unspoken word, and slaves to those we speak." Winston Churchill
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Unknown switch with LCD display
[#5] Posted: 04/25/2012 - 6:19:14 PM
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Use was ID'd by Kibbel
Cheers,

Nolan E. Kienitz
Nolan's Inspections, LLC
Dallas Home Inspections
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Unknown switch with LCD display
[#6] Posted: 04/25/2012 - 9:26:35 PM
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Thanks everyone for pitching in, but I'm still not really sure, because in both cases, the switches were in interior rooms, far away from any exterior wall, and in the case of the high rise condo, it's on a 26th floor and not much is on the outside. And when I play with the switch, nothing happened, no display at all. Could both be faulty?
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Unknown switch with LCD display
[#7] Posted: 04/25/2012 - 11:57:00 PM
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I've seen them used to control exhaust/ circulation fans.
Brandon

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Unknown switch with LCD display
[#8] Posted: 04/26/2012 - 06:20:00 AM
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I find them from time to time and I ignore them! Kind of like trying to figure out a lawn irrigation system or some of those new thermostats that are on the market! Just a pain in the butt!

I do note them in my report and tell my client to get the owner to demonstrate their operation to them.

Scott Patterson
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Unknown switch with LCD display
[#9] Posted: 04/26/2012 - 06:25:29 AM
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The neighbors are pissed. Their lights kept going on and off.

Or...

Brandon's right and they controlled the exhaust fans. When controls are hidden in closets it usually means that the builder didn't want the occupants dinking with them.

Tom

http://clearcreekhomeinspection.com/

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Dr Joe Lstiburek
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Unknown switch with LCD display
[#10] Posted: 04/26/2012 - 07:38:57 AM
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Quote: Originally posted by Scottpat

I find them from time to time and I ignore them! Kind of like trying to figure out a lawn irrigation system or some of those new thermostats that are on the market! Just a pain in the butt!

I do note them in my report and tell my client to get the owner to demonstrate their operation to them.


Agree with Scott, write it up as unknown, tell clients to ask owner the purpose, if bank owned call an electrician.

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Unknown switch with LCD display
[#11] Posted: 04/28/2012 - 8:39:50 PM
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Quote: Originally posted by Jerry Lozier

Quote: Originally posted by Scottpat

I find them from time to time and I ignore them! Kind of like trying to figure out a lawn irrigation system or some of those new thermostats that are on the market! Just a pain in the butt!

I do note them in my report and tell my client to get the owner to demonstrate their operation to them.


Agree with Scott, write it up as unknown, tell clients to ask owner the purpose, if bank owned call an electrician.
I got a note from a realtor last week. There was no electric baseboard heat, thermostat display was blank. It took 6 or 7 phone calls before the owners were able to install two AA batteries in the thermostat. The heat came on, and everybody could finally relax.

BTW, that timer switch also takes a couple of batteries, probably the little wafer jobs.

www.allsafehome.ca
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Unknown switch with LCD display
[#12] Posted: 04/28/2012 - 11:20:11 PM
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I see those all the time. They're programmable timer switches and they normally control the whole house air change fan.

ONE TEAM - ONE FIGHT!!!

Mike

Vancouver, BC
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Unknown switch with LCD display
[#13] Posted: 04/29/2012 - 10:22:15 AM
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Thanks everyone for your input. Seems like we have come to a consensus. Next time I see one of these, if it has no display and not respond to control, I'll open it up to check if it needs batteries. And then write it up as "possibly a timer switch for exhaust fan, ask owner for instructions."

Thanks again

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Unknown switch with LCD display
[#14] Posted: 04/29/2012 - 12:41:20 PM
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Quote: Originally posted by normw

Thanks everyone for your input. Seems like we have come to a consensus. Next time I see one of these, if it has no display and not respond to control, I'll open it up to check if it needs batteries. And then write it up as "possibly a timer switch for exhaust fan, ask owner for instructions."


It isn't, "possibly a timer switch," it, "is," a timer switch. It might, "possibly," control an exhaust fan. There is a difference.

Jim Katen, Oregon
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