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How to wire a 4 way light switch

Need to control a light from 3 or more locations, then you need a 4 way circuit. Here is how they are wired.




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fan speed control on 2 way circuit


1) Guessing you have 3-way switch where 2 different switches control same Load (light, fan, motor). Unknown wiring, and unknown if fan and light are wired separately.

2) Google search for 3-way fan switch shows Leviton IPF05 with simple straight-forward wiring. Link below has instruction manual, and Live chat button located to right of LEVITON
http://www.leviton.com/OA_HTML/ProductDetail.jsp?partnumber=IPF05-1LX&section=47082&minisite=10251

3) It appears that the Leviton device must replace Line side switch.
http://waterheatertimer.org/images/GE-15312-3-way-circuit-600.jpg

4) Uncertain if this device also controls fan since the wiring is so simple.

Feb 22, 2013 | AMS Lutron SFSQ-F-HO Skylark Single-Pole...

1 Answer

Where is the cooling fan relay located on a 94 Chevy Beretta 3.1?


It is located at the rear of the engine compartment behind the right strut tower. Thyere are 3 or 4 relays there in a cluster. The one you want has 4 wires: 2- RED 1- LIGHT BLUE and 1- DARK GREEN.

Both of the RED wires are HOT at all times. They come from fusible link [G] located at the starter solenoid (RUST colored).

The LIGHT BLUE wire goes to the cooling fan. This one should be hot whenever the Powertrain Control Module (PCM) turns the relay on. One of the RED wires provides battery positive voltage to the LIGHT BLUE wire when the PCM grounds the relay primary (coil) circuit to operate the relay.

The DARK GREEN wire is the relay control circuit from the PCM. One of the RED wires feeds battery positive voltage to the relay coil and the PCM controls the relay by providing GROUND for the relay coil. The DARK GREEN wire goes to Connector #2, PIN #2 at the PCM.

May 12, 2012 | 1994 Chevrolet Beretta

1 Answer

The Casablanca 88U33M Scandia Ceiling Fan only has three wires, a black, a white, and a green wire (ground). How do you wire the fan and light on seperate switches?


If you want to control both the light and the fan using 3-ways, then just wire 2 sets of the 3-way circuits. For this you need two sets of 3-wire between the switches, and one 3-wire cable from the switch location to the fan/light box.

At box #1 (a 2 gang box), you will run a power cable (marked cable #1) into it. From there you run 2 sets of 3-wire cables (identified as cable #2 & cable #3) to the other switch location, which will also be a 2-gang box (box #2).

Also from box #1, you will run a 3-wire cable (cable #4) to the fan/light box (box #3).

Hook up is as follows:

Box #3: connect black of cable #4 to black (fan), connect red of cable #4 to blue (light), connect white of cable #4 to white (fan/light), and connect the bare to the green.

Box #2: Connect white of cable #2 to identified terminal on 1st 3-way switch (#3). Connect red & black of cable #2 to the remaining screws of 3-way switch #3. Next connect white of cable #3 to identified terminal of 2nd 3-way switch (#4), and connect black and red to remaining screws. Tie all grounds together and terminate to both switches.

At box #1, connect black from cable #1 to whites in cables #2 & #3, using a wirenut. Connect white in cable #1 to white in cable #4. Connect black and red in cable #2 to 3rd 3-way switch (#1) and connect black and red in cable #3 to 4th 3-way switch (#2). Connect black in cable #4 to identified terminal of 3-way switch #1, and connect red in cable #4 to identified terminal on 3-way switch #2. Tie all grounds together and to the switches

Jul 04, 2011 | Casablanca Fan (88U33M) Ceiling

1 Answer

it was wired for a 4 wire flat trailer plug. the plug was ripped off and now there are wires coming from both tail lights and the drive lights on rear passenger and trailer dont work. Green, Black, brown/w red stripe on left, and Yellow, brown, and brown/w red stripe on right. what do I do to wire this back properly to a new plug? Thanks, Joe


You need to install a 3-2 wire converter. I suggest a CURT 56175 then
1.Using a test lamp, identify the corresponding wires in the harness for the left turn, right turn, tail lights and brake lights. 3. Temporarily remove the vehicle's negative battery cable from the battery. 4. Using wire taps, attach the input wires of the tail light converter to the corresponding vehicle harness wires identified in step 2 as indicated.
Converter Brown Wire: Tail Light Circuit Converter Yellow Wire: Left Turn Circuit Converter Red Wire: Brake Light Circuit Converter Green Wire: Right Turn Circuit
5. Locate a suitable mounting location for the ground eyelet on the vehicle near the converter on vehicle's frame or cross member.
And your ready to tow!

Mar 08, 2011 | 1999 Plymouth Grand Voyager

1 Answer

I know the circuit diagram but how do you


If the power originates at the location of the light (or other item being switched) you need a 3-core cable from there to to each switch location.
If the power originates at one of the switch locations you need a 2-core cable from there to the fixture and a 3-core cable to the other switch location. (If the cable to the second switch location is routed through the junction box at the fixture then you only need 4 cores from the first switch to the junction box--three switch wires and the neutral wire for the fixture.)
In all cases described above the ground (earth) wire is separate and not included in the count.

Oct 21, 2009 | Lutron CW-2-SS Claro Two-Gang Screwless...

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