Are you replacing 3-way switch?
EJ351 is single pole
You have to test these wires to see what each one does.
Two of the black-white wires will be Hot from breaker box... other wires will go to lights or forward to another switch or outlet box
The black hot wire will connect to one of the wires on timer....
The hot wire will also feed into the black wires that go forward to other switches and outlet boxes.
http://waterheatertimer.org/Basic-house-wiring.html
http://waterheatertimer.org/How-to-wire-switches.html
http://waterheatertimer.org/How-to-wire-timers.html
Gene
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SOURCE: Re: wiring the FV-08VKS1
The black and white in the fan box are the main power and neutral for normal (low speed) of the fan. The two reds are the signal wires. It is basically a switch loop. You will actually need a total of 4 conductors (plus a ground) in order to run the high and low speed of the fan. The four conductors consist of 1) power from one switch to power up the fan, 2) neutral, 3) signal going to second switch, 4) signal going back to fan from second switch in order to run high speed. Without four conductors you can still run the high speed only by tying the two red wires in the fan together. This would be like always having the second swith in the on position. Hope this helps.
SOURCE: I bought a Utilitech 7 day digital in wall timer,
HI .. if the switch has only a black and white wire attached, and there are no other wires in the wall box, then you cannot use this timer switch. You need to return it and get a timer that does not use a neutral connection. The wires you have are a switch leg from the light and there is a white wire but it is not a neutral.
If there are other wires in that wall box , tell me and we can chat more about how to remedy this .
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SOURCE: Help with Woods 59018/59028 7 day digital timer
The usual connection for this type timer is the house black power to the timer black, the house white power to the timer white and the , the light black wire to the red timer wire.
If you only have two wires, one black and one white, at the switch location, then you cannot use this style timer , as it needs a neutral. You should return this timer and get one that does not require a neutral connection.
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SOURCE: I have purchased a Utilitech
What you have a single pole light switch you are replacing with the timer. As you say you have 2 black wires. One black wire is the incoming power wire and the other black wire goes up to the light. On a normal single pole switch is makes no difference which of the screws you connect it to. Of course with the exception of the ground screw. Tie all the white wires back together that are in the wall box and shove them to the rear as they are not needed to make this connection. The correct connection is to connect one of the black existing black wires in the wall switch box to the black wire on the timer. Now connect the other black wire to the blue wire on the timer. The red wire is not used in a single pole connection and is only used in a 3 way switch connection, so just put a twist connector on it and shove it back in the box. To recap, connect black wire on timer to either black wire in box. Connect the other blue wire to the other black wire. Do not use the red wire. Hopefully you did not hurt the timer by connecting it incorrectly. If it does not work after setting the timer up according to the instructions you have ruined the timer by wiring it incorrectly. Hopefully no damage has been done.
SOURCE: GE digital timer. Instructions say to: 1)
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.
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