![]() ![]() Using this information and copying the wiring configuration from the old to the new switches does not, however, copy the various switching patterns of the old light switch. ![]() Some research on the internet suggests that old common=new L1, old L1=new L2, and old L2=new 元. The old switch is marked L1, L2 and common, whereas the new switch is marked L1, L2 and 元. Instead, the second switch in the upstairs hall controls a light in the loft. From downstairs the upstairs hall light can be switched, but the downstairs hall light cannot be controlled from upstairs. It is, as far as I can tell, a 2 gang 2 way switch shared with the downstairs hall. However, things are a little more complex with the upstairs hall light switch. Works fine.Are there any electricians who can advise with fitting new light switches? It's perfectly straight forward with 1 gang 1 way switches and fitting new Crabtree switches in place of the old (1980s?) switches is fine. I bought a new one, wired it according to the directions rather than trying to wire it in the same 'pattern' as the old one. When I tried swapping the black wires around: POP! :-) It fried something inside the new Lutron. This worked but the switch was upside down. Therefore, I wired the house ground from the box to the post where GROUND was on the old switch (on the new one, this is the side where there is just one screw) and put the two black wires on the other two screws (where they were on the old switch.) Not knowing where the green wire should go, I wired it to what I incorrectly assumed was the ground. My mistake was that I put the wires in the same 'locations' as was on the old Lutron dimmer that I was replacing-in the same pattern. What you should have done was left the wire that was plugged in near the copper screw where it was, and moved the wire that was plugged in near the brass screw and plug it in near the other brass screw on the opposite side. Swapping the black wires would not have solved the problem, but it shouldn't have damaged the dimmer either. Hello Allen, you are correct with putting the green wire on the dimmer with the bare copper wire in your wallbox. I cut the power and put the old unit back and that works. ![]() Then, when I turned the switch OFF, the Lutron unit made a loud POP! and then it would not work at all. The problem is that when I turned on the power again, the light was on. I have a single pole switch and I'm replacing an older Lutron dimmer (that caused flickering with my LEDs) with a newer TGCL-153PH-WH. Is that what you meant? Swap places for the two black wires? The light worked and dimmed great but-as with this person-the switch worked in reverse (up for off/down for on.) So, I cut the power and switched places for the two black wires. I plugged in the black wires in the holes where they were on the old unit. ![]() I wasn't sure what to do with the green wire on the new Lutron unit, so I attached it and the ground wire from the electrical box to the ground on the Lutron unit. In the electrical box are a ground wire and two black wires. What you need to do is take the wire that is attached to the brass screw above the copper screw, and move it to the brass screw on the opposite side of the copper screw. Hello chuckc3, This is a very simple fix. ![]()
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