Situation: installing new switches for 3-in-1 heater/fan/light fixture. Old custom switch set (broken) had three switches and an indicator light. New generic set has three switches and an outlet. Unfortunately as my dad attempted to install, and then as I troubleshot, exact identities of wires were lost. However, I did identify one wire which had no load and therefore tripped the breaker whenever connected to a closed switch. I connected that one to the outlet, and now the outlet works. However, in the process something happened which disabled the rest of the system.
So, currently: the fan/heater/light have been tested and verified to work (by a separate power source). The junction box has about a 110 VAC drop across each switch. Each switch is verified to work. None of the switches cause the fan, heater, or light to turn on, yet the outlet in the same junction box works. What could the problem be? I learned electricity on cargo ships so I am not used to troubleshooting residential circuits. Would there still be a voltage drop across the switches (when opened) if the cable going up to the unit burned through at some point? I inspected all of the cable that I could get to from the attic, and there was no evidence of burning/shorting, but there is a portion that I can't get to in the wall to inspect. I am looking for the next best troubleshooting or repair step.