What is the water termperature of the hot water at the kitchen faucet?
If the water temperature at the faucet is within 10F of the temperature set at the control, then likely its a false indicator. Reset the unit wait and re-check temperature again.
If unit continues to report overtemp, but your measurements of actual water temperature show otherwise, likely the control board is at fault, replace control board.
Did you measure the actual water temperature at kitchen faucet with a kitchen thermometer or are you still guessing?
I do not need to measure the temp to know that it is scalding hot, I have the temp on the water heater set as low as it will go. Thanks
Didn't know if you were relying on temperature reading from water heater. Now everyone knows it's a true overtemp.
So the controller knows, as you do, the temperature is too high yet it is unable lower temp. So likely the relay is stuck closed and likely its an integral part of the control board.
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SOURCE: high water temp
Have you done a reset on the board?
The reset function is used to restart the Temperature Control System after an error condition has been detected and
corrected.
Reset the control by pushing the red reset button on the controller. After a reset, the control performs self diagnostics
before normal operations begin. This takes approximately 10 minutes.
Then do the following if the flashes don't stop.
1. Make sure upper and lower access doors and insulation are
properly in place
2. Check element circuits for resistance of 5 - 25 ohms
3. Replace element if necessary and reset control system
SOURCE: Bradford White Water Heater Model: M165R6DS13
Immediately turn off power to heater. One of two things has happened. Either: A. The electrical contacts in one of the thermostats has welded together, necessitating replacement of the thermostat(s). (in this case I would recommend replacing both upper and lower thermos) or B. The lower element has burnt through, and because there is 120 volts to the lower element at all times (it normally only heats when the thermos complete the circuit to give it a path to the other "hot", putting a full 240 volts on it) a section of the element will continue to heat up to the point where the break allows the current to complete it's path to neutral ground via the water in the tank. It can continue to heat until the high limit safety thermo trips out. (the red reset button on the upper thermostat)
If either condition exists, the high limit safety thermo should trip out power to the heater before boiling water, and thus steam, is produced. Even if the safety thermo should fail to cut power, the pressure / temperature relief valve should open, releasing excessive pressure. If that should also fail to open, due to corrosion or such, the water heater will create steam and can actually result in explosion, and possible injury or death!
Several years ago I came across one that was boiling and when I turned on a hot water faucet to relieve the pressure it filled the entire basement with steam. (I still shutter to think if I didn't catch that fast enough I or someone else could have been killed)
The most likely cause of your extra hot water is actually the lower element. After you turn off power to the heater, turn off the water supply to the heater, open a hot water faucet to allow air to enter the tank and drain the tank. Remove the lower element. A bad element is usually visually apparent. If it looks good, you would have to test it with an ohm meter. (should be about 20 ohms if it is good) Install new element, turn on water and fill until water flows steadily from the hot water faucet you left open. Now you can turn the faucet off and turn power back on to heater.
SOURCE: Top heating element was broke. Replaced got hot
look for a badly connected power line ont he bottom element, or any connection upstream of the power terminals. voltage readings usually drop to that range when you only have one side of the 220v circuit connected.
SOURCE: Reliance 40 gal hot water heater. Model 54020RS960
Hello Bill The temp stat is a square box clipped in under the elements .Can be replaced in 5 minutes.Need a large flat screwdriver.
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water is scalding hot at faucet. water heater reset shuts off about once daily.
IT'S BECAUSE It'S A SAFETY FEATURE there's got to be an adjustment for the temperature in the front on the bottom or underneath shut it down and let it cool off before you mess with it.
turned the temp down, still overheats
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