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I recently replaced a failing pressure relief valve on my 1700 series raritan water heater. It all went fine, but while working on it, I’d turned off the A/C breaker for my hot water heater, so it wouldn’t be hot (or be receiving electricity). After I finished the job, I left it in the off position. When I returned to the boat, the water heater had heated the water. To test it further, I emptied the hot water from the tank and turned off not only the water heater breaker, but the main A/C breaker (which should turn off all incoming A/C power I believe). But when I returned to the boat a couple days later, the water was fully heated again. I’d love to hear if anyone else has experienced anything like this. If so, how do I resolve it; I don’t want the water heater working, unless I throw the switch. Is it possible for a breaker to fail with the circuit closed? (Ie – so that it won’t turn off?)
I’d appreciate any help. Kinda confused.
Thank you,
Paul
“Talisman” -
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I doubt this is helpful, but only way I can figure for what is happening is if the HW heater is receiving power through an inverter. I wired mine this way so I could make HW using battery power (works well, just have to monitor battery power closely). Guessing you probably know the system well enough to know this isn’t the case, just thought I would throw that out. It might be conceivable if the HW were wired this way any you were plugged into shore power you would never notice
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I recently replaced a failing pressure relief valve on my 1700 series raritan water heater. It all went fine, but while working on it, I’d turned off the A/C breaker for my hot water heater, so it wouldn’t be hot (or be receiving electricity). After I finished the job, I left it in the off position. When I returned to the boat, the water heater had heated the water. To test it further, I emptied the hot water from the tank and turned off not only the water heater breaker, but the main A/C breaker (which should turn off all incoming A/C power I believe). But when I returned to the boat a couple days later, the water was fully heated again. I’d love to hear if anyone else has experienced anything like this. If so, how do I resolve it; I don’t want the water heater working, unless I throw the switch. Is it possible for a breaker to fail with the circuit closed? (Ie – so that it won’t turn off?)
I’d appreciate any help. Kinda confused.
Thank you,
Paul
“Talisman”this is very strange – you should trace the wires from the hot water heater and find out where they are getting power. First I would keep power on the 110v panel but shut off hot water heater circuit breaker then put electric meter on the water heater connections to conform it’s still getting 110v -?then repeat the process and shut off panel 110v – if you’re still getting 110v then it’s hot wired to 110v coming from your incoming 110connector – or maybe an inverter is converting 12v to 110 but you have to trace the wires and reconnect them to your water heater circuit breaker -usually a bad breaker means it won’t provide power
Joe Shimkonis
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