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Question: Having problems with my water heater heating my water too hot. I turned the thermastats all the way down to 110, but out of the tap it seems way hotter, cant keep your hands there long anyway! I dont quite understand how to diagnose an a/c electric circuit, but live in the middle of nowhere and was hoping for some help. Searched the archieves but cant seem to figure out what is wrong. I was thinking the thermastats where bad, but here an audible click when the upper and lower are turned up higher, and there is about a 220 volt drop across both heating elements. Stumped!!, any input would greatly be appreciated. I was gonna try a infared temp gun on both heat element areas to see if could condemn one of the thermastats that way, but unsure if it will be a accurate diagnosis.
Answer: First get a thermometer and get an objective reading of the water temp. I don't know if you are just sensitive to hot water. Knowing the temp of the heating element is irrelevant. It is either very hot or not. The element itself is not temp regulated. There should be 220V across the element when it is on and 0V when it is off. Turning the thermostat knob should be able to achieve both on and off states. If it is always on, that's definately a cause of hot water, there must be another thermal breaker keeping it from boiling if that is the defect. The thermostat or sensor still may be defective if it is far out of calibration but otherwise working.
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