So I've replaced the thermostat and eco, and the water heater will continue to heat the water until it is pouring out of the relief valve, when it is running on electric. This is the same thing it wa...
You should be able to disconnect power and then thepower wire from relay contact pins. You should not have continuity if the relay is good. Bad relay would have continuity. Should be able to just replace the relay. Open control box and get the exact part number.Relay
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