Quote:
Originally Posted by sourdough
This is why I was hoping the OP would share what water heater he had. If he tested at that switch on the heater and had no 120vac where to check next depends on the model of the heater (relay vs non relay). Maybe he'll get back or maybe he figured it out?? I believe you are the one that alerted me to that relay (which I now carry a spare).
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If the OP has an inside switch for electric mode and one for LP then there HAS TO be a remote relay installed in the junction box to supply 120 volts power the thermostat and heating element even if there is still an outside switch on the Wh for electric mode
Usually the models is SWxxDEL for dual mode LP me electric operation
Images from the service manual