I removed a 678 unit installed in 2007 in a adjacent shower with another 678 unit. In removing the unit the other unit stopped working. The o
The other unit is on a different switch naturally, one was a guest bathroom back to back with the master bath room. There were only the black hot wire and the white neutral connected to the unit where the fan and light plugged into to. I believe the two unit are on the same breaker, but different switches. I am at a lost unless the breaker is blown. Have any clue.