Two red wires, 1 black wire and a green wire. In the box in the wall I have two black wire and 1 white. What do I connect to what? Help. This is for an electric box that has 1 click on/ off switch and the other right next to it has a dimmer that I want to replace. There is another switch on a wall opposite this switch I want to replace. I have a Trimatron push on/off dimmer switch.

I'm assuming from your question the 4th wire in your electrical box is a bare copper wire which is the ground. The green wire gets wire-nutted to that. The white wires get wire-nutted together. I'm guessing you have two switches installed in the wall for the fan because there is a black and red wire coming from your electrical box (one for the light and one for the fan) connect the two black wires together. The red wire is then connected to the blue wire in the fan which is the light.

1) Woods 59000 series in-wall countdown timer has extra wire to run electronic clock circuit inside timer, just like plugging in ordinary alarm clock.

2) Open following link for wiring instructions, and to download online manual:
http://waterheatertimer.org/Woods-timers-and-manuals.html#59000

3) Instructions:
How to wire 59000 and 59017 in-wall timers
1) Timer-green-wire connects to bare ground wire.
2) Switch has 2 wires. Take switch wires and connect to timer-black-wire and timer-red-wire. Choose either one for now.
3) In back of electric box are white wires twisted together and covered with wire nut. Connect timer-white to these wires.
4) If electric box does not have white wires described above, then connect timer-white to bare ground along with green wire.
5) Turn on electricity, and push ON-OFF button. If lights come on, timer is wired correctly. If lights do not come on, then reverse timer-red and timer-black wires.

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What timer are you installing?

Intermatic battery-operated timer with red, blue, black and green
Green connects to bare ground
Red is capped off.
Blue connects to one wire
Black connects to other wire
Push on-off button: if light comes on, timer wiring is correct.
If light does not come on, then reverse blue and black wires.

Other in-wall timers except Aube have red, black, white and green
Green goes to bare ground
Red connects to one wire
Black connects to other wire.
White: in back of electrical box are white wires twisted together and covered with wire nut. Connect white white to these other white wires.
If box does not have white wires described above, then connect white wire to bare ground along with green wire.
Push on-off or override switch: if light comes on, timer wiring is correct.
If light does not come on, then reverse red and black wires.

I've tested these timers.
Here's what to do:
1) Connect green to bare copper
2) Switch has 2 wires. For now, connect these two wires to timer-black and timer-red. Choose either one.
3) In back of wall box are white neutral wires twisted together and covered with wire nut. Timer-white wire connects to these white neutral wires. This action gives power to time clock.
4) If wall box does not have white neutrals described above, then connect timer-white to bare ground wire. Bare ground connects to neutral busbar in breaker box.
5) Turn on power and click manual override button or switch. If lights turn on, timer is wired correctly. If lights do not turn on, then reverse timer-red and timer-black wires.

The following diagram is for timers with green, black, white, and red wires:
If your timer is different, add a comment with model number.




Manual says:
Timer-black-wire to Hot; Timer-red-wire to Load (lights)
Timer-white-wire to Neutral.
Here's what to do
1) Timer-green-wire connects to bare ground wire.
2) Switch has 2 wires. Take switch wires and connect them to timer-black-wire and timer-red-wire. Choose either one for now.
3) In back of electric box are white wires twisted together and covered with wire nut. Connect timer-white to these wires.
4) If electric box does not have white wires described above, then connect timer-white to bare ground.
5) Turn on electricity, and push manual override button. If lights come on, timer is wired correctly. If lights do not come on, then reverse timer-red and timer-black wires.

Old timer: Intermatic EJ500 & ST01C timers have a battery. Battery operates the clock motor. Red wire is for 3-way circuit [a hallway with 2 switches is a 3-way circuit].

Utilitec timer, clock runs on 120Volt circuit instead of battery. So clock has to have power.

How to connect wires:
Black timer wire connects to hot wire from breaker box.
Red (or blue) timer wire goes to landscape lights.
White timer wire connects to white neutral wire [or if no neutral is available, connect to bare ground wire].
Green timer wire goes to bare ground wire.

How to find black hot wire and white neutral wire inside box: Disconnect and separate wires so you can test. Use ordinary tester. Power is on. There is only 1 black hot wire inside each electrical box. Test each black wire to bare ground until tester light comes on > that identifies the black hot wire. Next, test black hot wire to white wires until tester light comes on > that is the neutral wire. Exception: This test does not necessarily work with 3-way switches since they reverse each time switch is thrown.

1) Wires in box:
Black looped to to next switch is Black hot wire
Other Black goes to fixture

2) Connect timer wires
Black timer wire goes to Black hot
Red (or Blue) timer wire goes to fixture
White wire connects to white neutral wires (usually connected together with wire nut and pushed to back of box)
Green goes to bare ground wire

No you do not. You have a 220 system. What you do to hook it up is. In the box in the wall you should have 3 wires. 2 black and one white. Then on the cooktop you have the 3 wires 1 black, 1 red, and 1 white. You take the black from the cooktop to the black in the wall box. Take the red to the other black in the wall box. then take the whites and put them together. Now if you have a green or bare wire that is the ground. Just hook that to the wall box.

If you have any questions please ask.

The wires on your new switch are intended for black = power .. white = neutral . and red = lights .. with two black wires on the old switch I am assuming that there is a bundle of white wires in that wall box, the white timer needs to join that bundle ... then you need to determine which black wire is the power from the electrical panel ( voltage tester) and connect to the black timer wire .. the red timer wire connects to the other black wire in the wall..

Please Vote !!

L1 and L2 connect to the black and red. White connects to White. Green connects to the electrical box if it is made of steel and is grounded. Otherwise the green connects to the whites