Water Heater Elements


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Old 01-02-04, 11:47 AM
M
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Water Heater Elements

Not sure if this is properly plumbing or electrical, but here goes anyway. I've suspected for a while that one of the elements in my hot water heater was bad. I turned off the power, disconnected the leads from the two elements, and measured the resistance across their terminals. One read about 20 ohms but the other read zero - a dead short even on the Rx1 scale of my multimeter (albeit a cheap one). This kind've surprises me, as I expected an element would fail by burning out and would thus read infinite resistance.

So, what should the resistance be on a good element? I think I do have a bad one but want some of the expert advice I find here. If it matters, the water heater is a 50 gallon Ruud that's about 7 years old.
 
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Old 01-02-04, 12:45 PM
HVACELECT
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the one that reads 0 is bad but since you have themm both out why not replace them now so there will be no era and this will guarantee the system will work for a few more yearws
 
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Old 01-02-04, 01:12 PM
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Thanks. Not a bad idea.
 
 

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