Hi i'm an apprentice electrician still at college so bear with me because this might be a silly mistake but i have recently been re-wiring a house and we installed a intermediate switch. This was wired in singles and two core between the switches so the feed comes down at the 1st switch and switch back up at the third and the two strappers connected into L1 and L2 through-out the circuit. The problem is when you have the third switch either on/off the other two swithces do not work, if the the third switch is in the right position the first two switches work as normal. Can anyone help please?
Thanks in advance
Thanks in advance