I replaced the water heater switch on my 321 and new switch stays lit all the time. The package says it will light when on, am I doing something wrong or is the switch messed up? The original one just lit up when we flipped it on.
You've got the hot feed and the wire to the water heater reversed.
Swap those two on the back of the switch. All will be fine after that.
You've got the hot feed and the wire to the water heater reversed.
Swap those two on the back of the switch. All will be fine after that.