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I've installed light switches in other parts of our house, but there is one pair of dimmers that mystifies me. One is a normal dimmer and one is supposed to be a three way dimmer, but the latter is wired incorrectly so that the dimmer and remote switch must be both on at the same time.

There are three bundles of wires coming into the box and I have no idea what is supposed to be wired to what.

I've drawn up diagram of how they are currently wired.

In all other boxes in the house there is one bundle per switch and the wire colors are consistent. In this case there are 3 bundles used for two switches and the whites from two of the bundles are tied together for some reason. I have no idea which wires from the 3 bundles should match up with the wires on the new dimmers.

I've installed light switches in other parts of our house, but there is one pair of dimmers that mystifies me. One is a normal dimmer and one is supposed to be a three way dimmer, but the latter is wired incorrectly so that the dimmer and remote switch must be both on at the same time.

There are three bundles of wires coming into the box and I have no idea what is supposed to be wired to what.

I've drawn up diagram of how they are currently wired.

In all other boxes in the house there is one bundle per switch and the wire colors are consistent. In this case there are 3 bundles used for two switches and the whites from two of the bundles are tied together for some reason. I have no idea which wires from the 3 bundles should match up with the wires on the new dimmers.

EDIT 2:

Here are the voltages between the two grounds and every other wire. The things to note are:

• There is a 17 volt difference between the two grounds.
• The only live wire appears to be W2 (white from bundle 2). This seems crazy. How did the old dimmer 2 ever work if it wasn't connected to a hot wire?
• The difference between G1 and W2 is 102, but the difference between G3 and W2 is 47.

VOLTAGES (G1 is ground from bundle 1. W2 is white from bundle 2, etc.):

    G1  G3
G1  0   17
B1  1   21
W1  1   21
B2  1   20
W2  102 47
B3  19  1
W3  18  0
G3  17  0
R3  19  1

I've installed light switches in other parts of our house, but there is one pair of dimmers that mystifies me. One is a normal dimmer and one is supposed to be a three way dimmer, but the latter is wired incorrectly so that the dimmer and remote switch must be both on at the same time.

There are three bundles of wires coming into the box and I have no idea what is supposed to be wired to what.

I've drawn up diagram of how they are currently wired.

In all other boxes in the house there is one bundle per switch and the wire colors are consistent. In this case there are 3 bundles used for two switches and the whites from two of the bundles are tied together for some reason. I have no idea which wires from the 3 bundles should match up with the wires on the new dimmers.

I've installed light switches in other parts of our house, but there is one pair of dimmers that mystifies me. One is a normal dimmer and one is supposed to be a three way dimmer, but the latter is wired incorrectly so that the dimmer and remote switch must be both on at the same time.

There are three bundles of wires coming into the box and I have no idea what is supposed to be wired to what.

I've drawn up diagram of how they are currently wired.

In all other boxes in the house there is one bundle per switch and the wire colors are consistent. In this case there are 3 bundles used for two switches and the whites from two of the bundles are tied together for some reason. I have no idea which wires from the 3 bundles should match up with the wires on the new dimmers.