Never Seen This Before! Water Heater Problem Please Help - Plumbing - DIY Home Improvement | DIYChatroom

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Old 02-13-2011, 06:16 PM   #1
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Never Seen This Before! Water Heater Problem Please Help

I have searched all through the plumbing/hot water heater post on this site and could not find my problem.
which is i have a GE hot water heater that has 2 heating elements and of course 2 thermostats.
A few days ago i noticed that water was coming out around the pop off valve which is on top of the water heater. i replaced the pop off valve and it did not stop so i turned down my thermostat to 90 degrees and it would keep heating well above 150. i replaced both thermostats and it still keeps heating like the thermostats are not cutting the power off to it. i can get the thermostat to click on and off by manually turning the temp up and down but i cant get the power to stop going to it . it's like it has a continuous stream of power.
right now I'm cutting it off at the breaker box just letting it heat up long enough for a shower ect....
please post any suggestions you may have I've spent 2 days looking on the Internet for answers and came up empty handed


Last edited by JOSH76; 02-13-2011 at 06:40 PM. Reason: re wording
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Old 02-13-2011, 07:46 PM   #2
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Perhaps the thermostats (correct ones for this model?) are not wired or installed correctly?


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Old 02-13-2011, 07:58 PM   #3
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Assuming that your wiring is correct, sounds like your thermostats are not pushed firmly against the tank so do not have good heat transfer from the tank. Or maybe your tank is rusted preventing good heat transfer to the thermostats. Without good heat transfer from the tank to the thermostats, the thermostats will not switch at the proper temperature.

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Old 02-13-2011, 08:47 PM   #4
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How are you testing for power,

Are you testing across the leads at the element with a multimeter and showing 240 volts all the time?
Are you using a light up voltage indicator that is just showing you have voltage at the element?

It is common for the thermostat to only interrupt one incoming line, the other incoming line connects to the high limit and directly to the element, the power goes through the element and right back to the thermostat. It is only when the thermostat is closed and completes the circuit that you have 240 volts across the element and heating will occur.
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Old 02-14-2011, 07:55 AM   #5
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thanks every one for your time
i will be trying the suggestions today
and i will post what i figure out and if that don't work ill let you know
again thanks
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Old 02-14-2011, 08:13 AM   #6
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How old is this unit? It may be time for a new one!
Sometimes it's just easier, unless you just cannot afford one.
One guy I know had people out 4 times before they 'fixed' his problem.
For what he paid, he could have had a whole new unit installed!
(Which is what he ended up doing a few months later, btw)



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hotwater heater , overheating , plumbing

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