Electric hot water heater 7 years set at 120 deg. but water is 145 deg.
When I turn therm up it clicks at 140 and clicks again when I turn it down
to 120. Could this be a bad element causing the overheating?
A bad element can indeed cause overheating. If the element
faults to the sheath internally, current will flow to ground
thru that part of the element all the time. The thermostat
won't interrupt it because they only open one pole.
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