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My electric water heater is reading 120 volts on each element is this correct for 240 system?
Wiki User
∙ 14y ago
IT depends, You should read 120v on each element, but instead of reading from hot to ground on each element you need to check voltage across both elements and read 240v... so take your meter and put one lead on one hot and the other lead on the other hot of the element and you should read 240 if you dont your only getting one phase to your hotwater heater. What that means is your house has two different phases of 120v coming in, we call it A and B phase. on your panel you have breakers that are numbered on the left side 1,3,5,7.... and on the right 2,4,6,8... reason being breaker 1 and 2 are side by side left to right and are on the same phase and as you go down the panel it alternates phases 3,4 B phase. that why when you see a breaker that is a 2pole or a double breaker there ontop of one another like circuts 1,3 or 2,4 cause loads or appliances that require 240 volts it has to be 120v from both phases A,B to get 240v. Hope this helps!
Will Rogers II
Wiki User
∙ 14y ago
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