This condition mostly happens to the bottom element since any particulate matter that precipitates from the heated water will eventually gather and accumulate on the tank bottom. When the water temperature in your water heater exceeds 180°, the red reset button (also known as the high-limit switch) trips. JavaScript is disabled. This is often caused by a nearby lightning strike. When this happens, the heating elements begin to work harder and overheat. Elements of the same wattage input may be longer or shorter than their counterparts because of a low, medium, or high watt density construction. By my calculations the 250 volts has changed the rated 4500 watts to 4882 watts and I think this is what is burning out the elements. I lost my hot water today. Okay, with that out of the way, let’s look at the possible problems that are causing your electric water heater to trip your breaker. I got the perfect solution any sparky should know. When the sediment builds up high enough, it will burn out the lower element. Here’s the most likely problem: The water in your water heater is getting too hot. They are designed to allow current through, which will cause them to heat up and in turn heat the water. It's easy enough to determine form the nameplate. I don't have the time or inclination to argue or debate this subject. We have two sets of elements that we use for it ,for the last 5+yrs. After replacing the elements and getting things running again … Twice in the last year, the lower element has burned out. Your water heater should be non-simultaneous, using only one 4500 watt element at a time. Another electrical situation that may affect your heating elements is when lightning strikes the power lines, which results in spikes into the electrical system. Immersion faults can usually be diagnosed by testing 3 resistances: - Across the 2 heating element terminals Should be in the region of 20 ohms but can vary slightly. The lower element is needed to heat up the cold water coming in when you are using hot water. Electric water heaters use water heater elements as a way to heat the water using electricity. once a year we change elements,(replace the lime built-up one with the cleaned one, then clean the crusted one with vinager and use it for next years switch). If the water heater really has two elements at 4500 watts each, then a #10 and a 30 amp breaker are undersized. A power surge caused by an electric utility or a lightning strike may result to sudden voltage increase that can burn the water heating elements. Poorly installed heaters, heater controls and gas connections can cause explosions. What causes burned wires on electric water heater thermostat? Another possibility is that you have a faulty heating element or elements. For other immersion heaters used for smaller applications, an improperly placed element may be exposed to air above the water line and burn out. Sediment or dry fire are your primary causes for element failure. I have a EeMax [email protected]@ 38kW/240v tank-less Hot water Heater. Only electric water heaters use heating elements to heat water. They are designed to operate only when submerged in water. In order to prevent cross-contamination, make sure to return the same heating element to the receptacle it came from. So the red reset button on your electric water heater keeps popping out and needing to be reset. Burned wires create a lot of issues within the home. If this is not the problem, you may have issues with the pilot or the burner. the tank because a hot water tap was not open while the heater was being filled. Usually, when the heating elements fail, they simply burn out and the only way you’ll notice is that the water isn’t as hot as it once was. Electric water heaters are more efficient than gas-powered ones. It takes several seconds for the copper heating element to burn out. 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