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Ej341 timer has two black wires. Which goes to live and which goes to load?

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Night sentry-solid state timer model ej341-70


Copy following links for EJ341 timer manual:
http://waterheatertimer.org/pdf/EJ341-manual.pdf
http://waterheatertimer.org/Intermatic-timers-and-manuals.html

May 27, 2012 | Solar Intermatic Single Pole Model Ej341c...

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Dear Sirs, I try to change Intermatic E1343 solid state timer to normal 2 ways switch. I saw the cable in 3 colors : black, red and blue. do ou know the menaing of each cables? if you can email me...


I think you mean Ei343 instead of E1343.
I have manual for EJ341 and EJ343 that shows wiring for single-pole and 3-way.
I believe the EJ343 is wired same as Ei343 since Intermatic Load rating chart groups these timers together.
http://waterheatertimer.org/pdf/Intermatic-EJ343-timer.pdf

Load-rating chart:
http://waterheatertimer.org/pdf/Load-ratings-for-Intermatic.pdf
Load chart implies this is 120Volt in-wall timer for inductive and tungsten loads up to 400Watts.

Now here's something to remember.
When any timer is wired for 3-way, the timer replaces one of the 3-way switches.
The other 3-way switch remains, but the other 3-way switch has to be rewired differently so that 3-way timer works correctly.
When removing timer from 3-way circuit, don't forget to re-wire the remaining 3-way switch so it works correctly.

To convert your timer to operate single-pole: Timer Black wire connects to Hot wire from circuit breaker. Timer Blue wire connects to wire going to Light. Red wire is capped off.

To see similar wiring illustrations for newer generation Intermatic timer, open following link:
http://waterheatertimer.org/ST01C-program.html#ST01C

Aug 01, 2011 | Garden

1 Answer

I am replacing an old SS5 timer with this new one (ST01C) to control two sconces in my dining room. My question relates to the wiring. My old timer has three leads. The new one has four. In the switch...


Open following link to see clear drawing and instructions for wiring ST01C timer.
Page also has EZ programming steps:
http://waterheatertimer.org/ST01C-program.html#ST01C

Red wire is capped.
Blue wire goes to Load (wire to sconces)
Black wire connects to Line wire (wire from breaker)
Green wire goes to ground.
If you are uncertain about Load and Line wires, just connect them either way, turn power ON, push on-off button, it lights don't come on, then reverse wires.
I have tested this timer, and information here is correct.
Don't forget to install CR2 battery, otherwise display will not show.

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Mar 01, 2011 | Intermatic Inc. ST01C Digital In-Wall...

2 Answers

Where can i buy a intermatice ej341? we live in delray beach, florida


1) I searched Intermatic for EJ341 and showed no result:
http://www.intermaticstore.com/

2) I searched internet for EJ341 and showed a guy replacing EJ341 with GE 15086
http://www.fixya.com/support/t6267843-am_replacing_old_intermatic_model_ej341

3) Intermatic makes timer with similar number: EJ351 push-button-dial-type timer, which is available with internet search
http://www.intermatic.com/products/timers/consumer%20indoor%20timers/in-wall%20timers.aspx

4) You can choose from many timers on market today:
http://waterheatertimer.org/Programmable.html
http://waterheatertimer.org/Countdown.html
http://waterheatertimer.org/Woods-timers-and-manuals.html
http://waterheatertimer.org/GE-timers-and-manuals.html
http://waterheatertimer.org/UPM-timers-and-manuals.html

5) Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Jan 22, 2011 | Solar Intermatic Single Pole Model Ej341c...

1 Answer

I am trying to wire a timer switch in a four gang outlet box and the timer switchhas a red, black, white, and green wire. The existing switches in the box are all wired with two black wires and one copper...


Your switch has two black wires.
One of these wires goes to Load (light fan motor)
The other wire is hot. And this wire probably connects back to other switches in box making it easy to identify.

Timer-black wire goes to hot wire.
Timer-red wire goes to Load wire.

Timer green wire goes to bare ground wire.

Timer white wire runs the clock located inside timer. So timer clock is just like alarm clock, and needs its own power.
In back of 4-gang box are white wires that are twisted together and covered with wire nut.
These are neutral wires.
Timer-white wire connects to neutrals, and this completes clock circuit.

Dec 07, 2010 | Intermatic Inc. EJ500C Digital Wall Switch...

1 Answer

For an intermatic EJ341 spring wound timer, there are two black wires that are connected to two black wires from the wall outlet. If looking at the back of the timer (not at the dial knob), which wire...


Switch has 2 wire > one of these wires is Hot and it connects to Timer black wire > the other wire goes to Load and connects to Timer red wire.

If you get these two wires reversed, timer will not run, so switch them. You know timer is running when dial on front of timer rotates with passing time. You can test for Hot wire by taking out switch, separate wires, turn on power, test each wire to bare ground, tester lights up with Hot wire.

Timer white wire goes Neutral. This wire is necessary to run clock inside timer. Locate Neutral wire inside box >> it is usually two or more white wires twisted together and pushed to back of box. If you do not have a Neutral wire, connect Timer white wire to bare ground wire ... until you can hire electrician to run additional wire to box.

Oct 05, 2010 | Hardware & Accessories

1 Answer

I am replacing an old intermatic model EJ341 spring wound timer with a GE15086 digital in wall timer. The old intermatic timer has two black wires from each side (I dont know which one is hot). Each of the...


GE 15086 is a 7-day programmable timer. It has more wires than spring-wound timer because clock motor runs on 120V circuit, just like ordinary electric clock. The clock on spring wound timer operated by a spring.
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If I understand correctly, the old timer has 2 wires. One of these wires is the Hot wire ... and that wire will connect to GE timer black wire.
The other wire from old timer goes to Load ... and that wire will go to GE timer red wire.

Instructions on a lot of these timers say, it timer doesn't work, then reverse the two wires described above ... this is because timer only works when Timer black connects to Hot.

You can also turn on power and test each wire that came off old switch to bare ground wire. When tester lights up, that is Hot wire.

GE timer Green wire connects to bare ground wire.

Moving on to GE timer white wire. This wire is necessary for the clock to run. This wire connects to Neutral wire which is usually white. You can test for Neutral by testing Hot wire to each white wire in box ... when tester comes on, that is Neutral.

If you do not have a white Neutral wire, then connect GE timer white wire to bare ground wire. This is not code, but it will work fine until you hire electrician to run Neutral into box.

Oct 03, 2010 | GE Electrical Supplies

1 Answer

GE digital timer. Instructions say to: 1) connect Hot/live wire of main to black wire of timer, 2) connect neutral (White) wires together, 3) connect Hot/live wire of load to red from timer. 4) green to...


Find the Hot wire:
Your switch has 2 wires. One of these wires is Hot, and one goes to load. Disconnect wires from switch. Turn on power. Do not stand on wet surface. Test each wire to bare copper wire. When tester lights up, that is Hot wire. The other wire goes to load.

Connect wires:
Hot wire goes to Black timer wire
Wire to load goes to Red timer wire
White wire connects to white wires that are twisted together
Bare copper wire connects to Green wire from timer

How to connect white wire to white wires that are twisted together.
a) Strip white timer wire so you have 1-1/2 " of bare wire. Stranded wire will wrap around other wires easily.
b) Remove wire nut. DO NOT UNTWIST wires.
c) Hold all whites together so bare copper lines up. Wrap stranded copper around the twisted wire.
d) Replace wire nut, or use larger wire nut. Twist real tight. Do not use tape. You can solder the connection.
e) When done, pull on white time wire to make sure it is held tight. Push whites back into box.

Sep 25, 2010 | UPM Programmable Wall Switch Timer

1 Answer

Installing a GE digital wall timer. Instructions say" connect Hot/live wire of main to black of timer. Connect Hot/live wire of load to red of timer. connect white of (neutral) to white of timer. green...


Review:
Black goes to Hot wire from breaker box
Red wire goes to Load (light, fan, motor)
White wire goes to Neutral
Green to bare copper ground wire

Orientation:
Your original switch had 2 wires plus bare ground.
One of these wires is Hot, the other goes to Load.
You said original wires are Red and Black

How do you find Hot wire?
-Your original switch had 2 wires.
-Remove timer from box.
-Pull original 2 wires out where you can test them
-Turn on power
-Use regular tester
-Tape tester leads to wood sticks so your hands stay away from voltage
-Power is on
-Test each original wire to bare ground wire
-When tester lights up, that is Hot wire ... this wire connects to Black wire on timer
- The other wire goes to Load so it connects to Red wire on timer

How to test for Neutral wire
Test Hot wire to your white wires - No need to untwist them.
When tester lights up, that is Neutral
White wire from timer connects to Neutral.
Green goes to ground wire.

How to reset timer
I'm not sure which timer you have. Probably GE 15086. Reset is small round button below HOUR button. Use paper clip and push-in reset until timer flashes 12 o'clock.

Sep 25, 2010 | Intermatic Inc. EJ500C Digital Wall Switch...

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