Article I developed my own method of cutting access holes in walls where I needed to install wiring. I cut the hole holding my compass saw at an approximate 45 degree angle with the blade tilted inward. This makes it much easier for patching. See the photos at the end for the patch jobs.
I labeled the black wire that is the LOAD that goes to the existing light fixture with red electrical tape.
I needed to cut access holes in the ceiling and the wall in order to get the new cable down to the existing switch location.
The ceiling had trusses for joists which made it easy to fish the new cable across. The wall was more difficult because of the medicine cabinet, the closet behind this wall, and the close proximity to the door. The holes above were cut with the saw angled at 45 degrees. I used to use my keyhole or my compass saw for cutting these holes.
However since I purchased my oscillating multi-tool I have been using it for cutting access holes in drywall. After I cut the access holes in the drywall I had to drill some holes using my half inch Milwaukee Angle Drill. I had to drill up through the top plate of the wall to get into the ceiling. I also had to drill through some of the wall studs in order to get the new cable over to the existing switch location.
Above is the new Romex cable that I installed next to the existing wiring which will be used again when the new switches are installed. Before I removed the old switch box I held the new old work plastic switch box on the wall and traced a line for cutting out the opening.
It is easier to remove the old box with the bigger hole. I start to pull the wires through into the new two gang old work switch box a little at a time. As I push the box closer to the wall I continue to pull each wire until the box sits inside the wall. The almost finished switch installation. The homeowner wanted her existing locator light switch installed with the new bath fan switch.
The holes above were patched by using the old pieces of drywall that were cut out. The drywall edges on the wall and the cut pieces were each buttered with a thick coat of joint compound. After the piece is pushed into place some compound will ooze out. Use a wide blade putty knife and smooth it down. The joints do not need to be taped due to the angle cut of the drywall. Let the joint compound dry overnight. Next day smooth it a little with a damp sponge or fine sandpaper and then apply a second coat.
A third coat may be needed to finish. For large ceiling pieces I will install a block of wood or two to screw the piece of drywall into to keep it in place until the compound dries. The old ceiling fan had a plastic housing which made removal easier. I just kept breaking pieces off with my pliers. The new Panasonic bathroom fan housing with a dusty interior from my work.
I usually wipe them down before installing the motor and grill. There is supposedly a way to "release" these wires from the switch. I find it easier to cut them using a wire cutter. If you've not done so already, now would be the time to turn the power off to these switches.
In the picture below, you can see that I'm ready to install the new switches. I've added two new neutral wires to the connection went up a size with the red wire nut and stripped all wires, ready to go. Typically when installing a single, three-way, or four-way switch, you buy different switches.
Lutron provides its digital switches with the functionality to do all of these switching configurations. When you first open your new Lutron switch, you'll see a blue wire. Not something you would expect. The first image below shows both sides of one of these new switches. The bottom black screw on the left is where you connect your power line. While the middle silver screw will connect to your new neutral wire. The top left brass screw will be used to connect with the fan or light.
The brass screw will be for a single-location configuration, which is what I'm installing. For a multi-location install, the brass screw and the blue screw on the opposite side are for your "traveler" wires. These extra wires facilitate multi-location control. Since I'm not doing a multi-location install, I don't use the blue screw. An additional view from the backside of the switch:. The included instructions also give you some useful diagrams to help you out. Both switches are single-location.
They are not 3-way or multi-location controls. At this point, all the necessary connections are complete for the new Lutron digital switches. The next step is to get everything back into the electrical box. That seems impossible from the looks of this picture?
While the new switches are not that deep, you'll need every bit of horizontal and vertical space you can get. In my case, there was some extra drywall mud on the inside of the box. The mud wasn't a big deal when the electrician installed a standard switch. For me, it needs to go. I've always used an older straight-edged screwdriver, with a light hammer type tool e. Gently crack the dried mud alongside the edge of the box and remove it. You will also need to break off the three metal tabs on the inside of both switches.
Unless you do this, you will not be able to mount both switches side-by-side. In the image below, I've broken off the top one on the left side switch only. I did break off the other five before mounting the switches. Rewiring your bathroom circuit to allow fan and light to be operated independently. This electrical repair project is best performed by a licensed electrical contractor or certified electrician.
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Connect a light and a fan to a new switch. Wiring a bathroom light and exhaust fan. From the switches 3 wire cable runs to the ceiling outlet box.
Go for any convenient location, however. Use a drywall saw to make the hole. Then you want to use the remodeling box. Because in most case, it directly anchors with the drywall.
Have a look at the wires of fan. It should have two pairs of wires including black and white. You need to pull three-conductor cables.
It must be with bare, black, and white wire. Or go for a 2-conductor cable that does not include a red wire. Then you need to attach the fan and light to the cable. In case of having only one hot wire, simply twist it with black cable from switch. You can use pliers to twist them together properly.
This is for putting the fan and light on different switches. Sometimes a unit may have different colors used for wires. In that case, you need to follow the instructions given on installation manual. Finally, twist all white-colored wires together.
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