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Old 11-28-2011, 07:34 AM   #1
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Default Exhaust Fan nightmare


A friend wanted to replace a timer that works their bathroom exhaust fan. The one in there is the wind up type that makes noise until it clicks off.
They decided to spring and get the push button professional looking type. When they hook it up the fan immediately turns on and they can't turn it off.
It's not the switch as they got a replacement one and it does the same thing.
The box has a black and white coming in.
They tested to see which one has the load and it's the white one.
Can anyone help get this thing going? Thanks in advance.
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Old 11-28-2011, 07:42 AM   #2

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Have you gone over there? We cannot help none electricians work on their homes. Sorry.
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Old 11-28-2011, 07:42 AM   #3
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You'll soon hear from others on here that you should hire a pro.
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Old 11-28-2011, 07:53 AM   #4
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I'll come fix it but I'll need compensation for travel time and arrangements.
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Old 11-28-2011, 08:06 AM   #5
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Tie the microwave to the stove circuit
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Old 11-28-2011, 08:54 AM   #6
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Originally Posted by mcclary's electrical View Post
Tie the microwave to the stove circuit
That may fly in your neck of the woods, but here in North Alabama we are required to tie the microwave to the A/C disconnect.
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Old 11-28-2011, 01:47 PM   #7
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are these the same folks that are always humping upstairs ?
If you are going to sit back on your laurels and armchair quarterback the NEC, you will always be 3 years too late. Start threads now for the next code cycle proposals and do something about it
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Old 11-28-2011, 04:38 PM   #8
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Most electronic timer switches have a neutral, in fact, I think they all do. Based on what you said, you have a switch loop coming into the box, and DO NOT HAVE A NEUTRAL. Therefore, you cannot use that, or any other, electronic pushbutton timer switch.

What's the model number of the switch you are trying to install?
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Old 11-28-2011, 05:05 PM   #9
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I love the fact the white wire is the load....anywho you cant get there from here. You will need a 700 HT3 for the timer....
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