Install a dimmer switch "Electrical Beginners Guide"

Install a Dimmer Switch - In this electrical beginners guide i will show you how to change a light switch for a dimmer switch. I will show you step by step how to mark up the existing wiring, how a dimmer switch works and also include a wiring diagram comparing the switches.
link for the dimmer switch amzn.eu/d/gmITlz6
If you are not competent or confident undertaking electrical work then should contact a qualified electrician
00:00 Introduction
00:48 Isolate the electricity and prove dead
01:58 Light switch connections including dimmer switch
02:35 How light switches and dimmer switches work and wiring diagram
04:06 Fitting the new Dimmer switch
05:17 Testing the new Dimmer switch
#electrician #renovation #homeimprovement

[@markshaz8691]

Best explanation of this, thanks very much subbed.

[@FixitwithFowler]

Hi, thanks for your comment and an extra thank you for subscribing!

[@alastairbarkley6572]

Thanks for posting that. A very clear explanation and the diagrams were helpful.
But... "a variable resistor that limits the current..." Well, yes, the spindle IS connected to a variable resistor but that's setting a trigger point for the control electronics inside - NOT directly controlling the lamp current. Does this matter? The majority of cheaper dimmer switch are of so called 'Leading Edge' type and these use TRIAC technology. Triacs 'chop' the AC waveform - dimming is achieved by limiting the 'ON' part of the AC cycle, not its amplitude (height).
You CANNOT test a triac dimmer with a simple multimeter. It's not a rheostat/potentiometer/variable resistance. Numerous CZcams videos claim, falsely that you can. You can't repair them either. Best test for a suspect dimmer switch is to replace it with a known good unit.

[@FixitwithFowler]

Hi, firstly, thanks for your comment 👍. I always try and put things into simple terms so that the majority of my viewers can understand it without too much technical gargen. As an electrician, I have found that electrical videos tend not to perform very well on my channel.