Light fitting with power but no 3-way switch function

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Controlling a light with two or more switches

This page describes how to use 3-way and 4-way switches to control lights from two or more locations. This is the first of several related pages explaining how to control lights with multiple switches. Click here for an overview of all these pages.

A light or lights can be controlled by more than one switch. The usual practice in home construction is to use 3-way switches. "3-way" is the electrician's designation for a single pole double throw (SPDT) switch.

A 3-way switch is shown below. Slide your mouse over it to see it change state (requires Javascript enabled):

Here is a typical circuit in its four possible states.:

The switches must create a complete circuit for current to flow and the bulb to light. When both switches are up, the circuit is complete (top right). When both switches are down, the circuit is complete (bottom right). If one switch is up and one is down, the current...

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Ceiling Fan Installation

I have just installed a ceiling fan (with light kit)in my gameroom but I am not sure about the wiring. The fan has a black and white wire and the electrical box has a black, red and white. I am putting the fan on a dual switch so I what the fan controlled on one switch and the light on the other. But the problem comes in on how to do the wiring when I only have one hot wire coming from the fan. Does anyone know how I should handle this so that each switch controls a functions?

Depending on what products you used and how you connected everything, the light kit should have its own black (sometimes blue) wire. You may have connected this to the fan's black resulting in only one hot wire. You can connect the hot wire from the light kit directly to the hot wire from the switch.

Ceiling Light Wiring

I have a ceiling light with a pull chain switch. I want to add a second porcelain keyless lamp base to another part of the...

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Whilst I'm sure that we would all agree with that as generalisation, in this case I think that the neon screwdriver has served a useful purpose - since the neon goes on and off in response to operation of the switch, it shows without almost any doubt that L voltage is getting to the fitting (albeit it could be through a high impedance connection) - which I presume is why flameport concluded that there was probably a 'disconnected neutral'.

Confirming that would, of course, theoretically be easy with a 2-pole tester, since it would show ~230V L-E, but little or no voltage L-N, at the fitting. However, even then one could get misled if one used a high-impedance 2-pole tester (which most of them are), since it might show a fairly normal L-N voltage even if there were a very poor connection in the neutral. ... one has to remember that (high impedance) 2-pole testers are not necessarily a panacea.

Kind Regards,...

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A three-way wall switch is a variation of the standard single-pole switch that makes it possible to control a ceiling light or other electrical fixture from two different locations in a room. In a hallway or large room, for example, installing three-way switches at both ends lets you turn the light fixture on or off from both locations.

An additional switch adaptation, four-way switches, are used in conjunction with three-way switches to control lighting from more than two locations.

This is not common in most homes, but you may see it in very large rooms, such as open-concept, kitchen/great room home layouts, where a central bank of lighting fixtures might be controlled from more than two entry points

Screw Terminals on Three-Way Switches

If you examine a three-way switch, you will notice several differences when compared to standard single-pole switches. First, the body of the switch will be thicker and bulkier than a single-pole switch. And the...

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VENDOR'S PART NOMANUFACTURER'S PART NUMBERITEM DESCRIPTIONLEAD TIMERE-80PRID: PRIMUS MOTOR: 100602Primus Motor ELMO type CF160J/2-20-RS-3T-3599. Weight:: kgs (ea): 80.006-8 WEEKSRE-80PRAID: unknown: TI2950MORWM016TERMINAL BROWNRE-80PRBID: unknown: TI2950FERMOREWTERMINAL ENDRE-81PRID: LEGRAND: 0395-05Legrand MARKER, NUMBERS FOR VIKING 3 TERMINAL BLOCKS HORIZONTAL FORMAT NUMBERS 1 TO 10 A PACK OF 1000 PCS4 WEEKSRE-82CAID: SONY: DSC-W350Sony CAMERA, DIGITAL COMPACT, 14 MEGAPIXELS, 4X OPTICAL ZOOM, COLOUR: BLACK2 WEEKSRE-83ID: HILTI: TE-CX-14/27HILTI DRILL BIT SIZE 14mm X 200mm LONG: TYPE SDS+2 WEEKSRE-83AID: HILTI: TE-CX 16/27HILTI DRILL BIT SIZE 16mm X 200mm LONG: TYPE SDS+2 WEEKSRE-83BID: HILTI: TE-CX 17/22HILTI DRILL BIT SIZE 17mm X 200mm LONG: TYPE SDS+. COMES ONLY IN 17 X 150mm "ONLY" PLEASE SEE TECHNICAL DATA2 WEEKSRE-83CID: HILTI: TE-CX-18/32HILTI DRILL BIT SIZE 18mm X 150mm LONG: TYPE SDS MAX. COMES ONLY IN 18 X 200mm "ONLY" PLEASE SEE TECHNICAL DATA2 WEEKSRE-83DID: HILTI: TE-YX...
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