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Old 02-05-2011, 01:12 PM   #1
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Water Heater not heating


I have a water heater 10 years old not heating we checked the top heating element and it is 240 and the checked the bottom out at 120 could this be the problem

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Old 02-05-2011, 01:24 PM   #2
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Water Heater not heating


It might be the upper element needs replacing, but at ten years old, I would consider replacing the whole thing, unless you are as cheap as me, then try to repair it.

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Old 02-05-2011, 01:32 PM   #3
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Water Heater not heating


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Originally Posted by pepsi3656 View Post
I have a water heater 10 years old not heating we checked the top heating element and it is 240 and the checked the bottom out at 120 could this be the problem
No hot water at all? If so, then probably your upper heating element is burned out.

The way electric water heaters work is that the upper thermostat supplies power to the upper heating element. When the temperature in the upper portion of the tank reaches the upper thermostat setting, that thermostat switches its contacts and supplies power to the lower thermostat, which in turn supplies power to the lower heating element. When the temperature in the lower portion of the tank reaches the lower thermostat temperature setting, the lower thermostat opens its contacts and removes power from the lower element. At this point, power is not applied to either element.

So if the upper element is bad, the lower element can never get power. Also note that power is only applied to one element at a time but never both simultaneously.

***Only do the following if you are competent in electrical work.***
To see if your upper element is bad, turn off the circuit breaker feeding your water heater. Double check that there is no voltage to the heater using a voltmeter. Remove one wire to the upper element. Use an electronic meter to measure the resistance of the element. It should be a low ohm reading like about 10 to 20 ohms. If the element is open, it will be obvious.

HRG

Last edited by Homerepairguy; 02-05-2011 at 02:01 PM.
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