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The black for the timer is connected to the incoming hot black feeding the box. The blue wire is the hot coming out (controlled by timer) going to the light. The light gets the blue and a white neutral wire.
GE 15312 instructions
okay, so the black for the timer is connected to the incoming black from the feeder box. this is where i'm still confused...where does the blue wire (hot coming out and going to the light) get attached if i only have a white wire and ground in the box? if I attached the blue wire (hot coming out) to the existing white wire in the box, where to i connect the neutral white wire from the timer?
Ok it sounds like you have a switch loop. Was there a standard light switch connected to the black and white before the timer?
Does the white wire have any black tape on it?
On the end?
You do not have a neutral in to connect here. You will need a different 'non neutral' timer for this location.
Some timers do not require a neutral white wire for power, this one does and you will not be able to use it.
hmm...just bought the house recently, so i don't know what was there prior, but the switch loop makes sense.
i'm actually trying to replace an existing timer that got fried when our basement flooded from irene, so the current timer has it's blue wire connected to the white wire in the feeder box...so i think you're theory makes a lot of sense and that you're right...i'll have to find a timer that doesn't require a neutral wire
Yes, this switch does not have a neutral, it's switch loop.
They have the non neutral timers available too.
yep, totally makes sense. thanks so so much! i guess it's back to home depot for me. Thanks again!