The best diagram for a 3 way switch.

By | February 10, 2017

This video explains a 2 way switch with an intermediate switch in the middle very well. The key is not to get hung up on the labels of the intermediate switch but to use a multi meter to figure out the parallel or the cross over position. This is because the intermediate switch could be labelled in various ways. Sometimes it’s L1, L2, L3, L4. Sometimes it’s L1, L1, L2, L2.

 

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