DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Electrical and Wiring > Help with Outside Garage Lighting


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Old 02-15-2017, 04:58 PM  
nealtw
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Yes I have a gas heater out in the garage. The breaker is in the garage. The panel in the garage has breakers one for heater, 2 x outlets, and one for the garage inside lights.
I was thinking of maybe a low voltage switch like a thermostat wire, running back to the house in the unexplained conduit.


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Old 02-27-2017, 03:15 PM  
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Hi again,

Sorry it took so long for me to get back with my findings. I have been busier than I thought. Any who, I did a little more investigating and this is what I found yesterday.

So before I said I thought the wire with the red from the suspect switch at the house was going to the non working receptacle in the garage. After reinspecting the wires at both the switch and the receptacle I noticed that the copper wires at both ends were of different gauges. The switch side with the red had bigger copper wire and insulation and the part was off-white or older looking than the garage receptacle side. That side the wires were the same size as the majority of the wiring throughout the house switches and receptacles and the color was much whiter and cleaner looking than the switch side. Which to me indicates newer wiring.

So now I am lost as to what goes to the garage. Looks like I have to open everything up in the house to first find this red wire part to eliminate it and to at least see where it goes and then try to look for the receptacle wires.


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Old 02-27-2017, 03:28 PM  
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I think you will find the rid wire goes to an outlet in the living room. The garage is a different problem but best we find that red wire first.
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Old 02-27-2017, 09:58 PM  
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Ok, probably tomorrow I will start opening up switches around the house.
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Old 03-08-2017, 04:00 PM  
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Back again, sorry again for taking so long with results, just very busy.

So after the suggestion about trying to find the other end of the red wire to that switch and to first look on the same circuit for that red wire. Here is the what I found. I did find 3 red wires on two separate switch boxes. Upon further investigation on the red wire hooked up to the no-working suspect garage light switch, I noticed that wire has the green fabric looking sheathing on the outside(older wiring). Also the white, black, and red wires that come from it are all bigger gauge than the rest of the wiring in that switch box or for any other switch box from what I can see.

So far all wiring I have seen so far have all the same size/gauge of wiring except for that wiring going to suspect switch, which leads me to think that wiring is not on the same circuit but may go somewhere else in the house. I see a lot of green fabric type wires going into the breaker panel.

Anywho attached are the pics of the red wiring on the two other switch boxes that I found. What do you think? And where should I go from here?




Forgot to mention that red wire found going to the flood light switch to the rear of house also have the green fabric sheathing but the wire gauge is like all the rest = smaller.

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Old 03-08-2017, 04:17 PM  
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So you never found the green cable with the red wire anywhere?
There are a few reasons for using a three wire including a red. But you are correct in looking for the one with green fabric.

If you have any breakers that are 20 amp, they would require and bigger wire.
15 amp breakers feed 14 gauge wire and 20 amp feed 12 gauge.
12 is bigger than 14.

It may not mean anything as there would be no rule on over sized wire.

The green wrap on your cable indicates that it would have been original to the house and all the cable that has vinyl wrap is newer.

We have not seen the older wire in the garage.

Where is the breaker box?
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Old 03-08-2017, 05:34 PM  
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The 14/3 in your photos may be a 3 way switch arrangement mentioned in post #18.
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Old 03-08-2017, 06:43 PM  
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Back again, sorry again for taking so long with results, just very busy.

So after the suggestion about trying to find the other end of the red wire to that switch and to first look on the same circuit for that red wire. Here is the what I found. I did find 3 red wires on two separate switch boxes. Upon further investigation on the red wire hooked up to the no-working suspect garage light switch, I noticed that wire has the green fabric looking sheathing on the outside(older wiring). Also the white, black, and red wires that come from it are all bigger gauge than the rest of the wiring in that switch box or for any other switch box from what I can see.

So far all wiring I have seen so far have all the same size/gauge of wiring except for that wiring going to suspect switch, which leads me to think that wiring is not on the same circuit but may go somewhere else in the house. I see a lot of green fabric type wires going into the breaker panel.

Anywho attached are the pics of the red wiring on the two other switch boxes that I found. What do you think? And where should I go from here?




Forgot to mention that red wire found going to the flood light switch to the rear of house also have the green fabric sheathing but the wire gauge is like all the rest = smaller.
Picture didn't show up earlier.

Everything in all three boxes go off with one 15 amp breaker?
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Old 03-08-2017, 06:47 PM  
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Breaker box is in the basement. Is it safe to open the box up and just take a look to see if I can see this 12 gauge wire? I am sure if that's the next step then I should turn off main breaker first before doing anything near the breaker panel.
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Old 03-08-2017, 06:51 PM  
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Breaker box is in the basement. Is it safe to open the box up and just take a look to see if I can see this 12 gauge wire? I am sure if that's the next step then I should turn off main breaker first before doing anything near the breaker panel.
Take a few pictures while you have it open.


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