wiring timer switch - three black wires

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  #1  
Old 10-21-18, 06:44 PM
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wiring timer switch - three black wires

hey guys,
i am stumped. pictured is my setup i am working with. i got an intermatic 7 day timer switch to replace the switch on the left, that controls my front house lights (three lights). the right switch controls a foyer light (two switches operate the same light).
i can not figure out how to wire the intermatic switch on the left. it has red, black, white, and green wires - which i know what they all do. i actually did wire it up, but it did not turn on (i also tried adding a skylark dimmer to the other side at the same time, but realistically both will not fit in this box).
how can i wire the intermatic switch? i looked up a bunch of threads and i just couldn’t get it to turn on (and hopefully my wiring of the dimmer switch was not affecting this switch). help!

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Last edited by PJmax; 10-21-18 at 10:28 PM. Reason: cropped, resized, labeled pics
  #2  
Old 10-21-18, 07:01 PM
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Welcome to the forums.

I'm guessing you're having a problem posting a picture...... How-to-insert-pictures
 
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Old 10-21-18, 07:14 PM
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thanks, now they are all flipped sidways, FML LOL. i just can't figure out all the black wires in this freakin box.
 
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Old 10-21-18, 10:17 PM
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My best guess.

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White to neutrals..
 
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Old 10-22-18, 07:20 AM
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Alright, so I did connect the red wire from the timer switch to the TOP black wire and the bottom two black wires to the black wire on the timer switch. then grounded, then ran the white neutral to the big group.

got nothing. i swapped the red/black from the timer switch with the other blacks (vice versa), and still nothing.

does getting the timer switch to turn on correctly need the hallway switch to be operating correctly? isn't it passing hot through it? i only ask because like i said, i tried wiring in a skylark dimmer at the same time and was wondering if i screwed that one up.
 
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Old 10-22-18, 11:15 PM
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The hallways switch looks to be a three way switch and should have no bearing on the timer.

If you short the three black wires together that were on the old switch and the lights work......
then the timer has an issue.
 
 

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