[Barnsnake]

A couple of things to consider:

1. Daisy-chaining the wiring for switches is a bad idea. It's OK for something like instrument lights, but for control circuits it can create troubleshooting nightmares. Each should be independently fused.

2. If those switches are triggering relays, one or more of the circuits may be switching the ground rather than the power. A relay can be wired either way and if there is a thermal switch involved it's likely controlling the ground.

Do those switches have separate connectors for the LED indicators or do they get their power from the controlled circuit? If there are not dedicated connectors for LED power and ground, item 2 above would cause strange behavior, especially if the switches are chained together.