Electric hot water heater keeps tripping on overheating of water. I installed a new thermostat and it still keeps tripping.
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A hot water heater is like a bomb just wait for an agitator to set it off.
The danger this can cause is deadly. Please contact someone who has expertise in the diagnosing of Hot water heaters. There are so many reported accidents in the failing of the heater to work, including deaths of children and teachers in a school. I am not telling you this to scare you, but to protect. Even if you skilled in the repairs, apparently the problem is something you have not yet mastered. Call someone quick and don't attempt to light it again until a qualified worker comes.
answered 6 months ago
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The thermostat is a switch. When the temp drops to the preset setting, it allows current to flow until the preset temp is reached then opens and current flow stops. The limit switch is what protects the water heater from overtemp(should the t-stat fail to open). After that, the pressure relief valve will open dropping the pressure in the vessel if it reaches 150 psi or 210 degrees. Now, if it keeps tripping on limit, the problem lies in the part of the circuit before the limit . You've replaced the t-stat. What is the water pressure going to the water heater? Is the t-stat wired correctly? The heating elements are operated by the t-stat. It opens or closes the hot leg. I think your problem is the t-stat wiring. Either you have a junk t-stat again or somehow the t-stat is being bypassed allowing the current to flow to the elements and because the current never shuts off, the limit switch has taken over the role of t-stat everything is in series in the control circuit.one of the hot legs goes to the elements, continues to the t-stat, then to the limit. Find where it bypasses the t-stat allowing voltage to continue and you will have solved the problem.
answered 6 months ago
