Forum Discussion
wasatchmtnatvr
May 27, 2013Explorer
If you have the dual switch for water heater with red light lense in the middle also make sure you shut of the 120vac system switch. It uses a 12 vdc circuit with a relay to activate the 120 vac wtr. htr. system. it is the one with a lightning bolt picture next to it. this relay will draw dc amps.
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