Water Heater Temperature Sensor Failure

Most whirlpool water heaters come with diagnostic code lights that can help pinpoint problems.

Water heater temperature sensor failure.

I go out yesterday morning and the heater is off the pool water temperature is 74f per thermometer in the pool but the heater display on the heater says the water temp is 104f. Shop by popular models. Now drain 1 gallon of water from the bottom of the tank as quickly as you can and get an accurate temperature reading. Look up the manufacturer s chart for sensor resistance at various temperatures and figure out what your resistance reading should be.

5 replace gas valve this indicates a sensor failure and the gas control valve must be replaced. The temperature reading is very critical and detail is of the utmost importance. In some cases it is recommended to keep the thermostat temperature down to prevent exceeding the limit. With the pump off you will see the white nut that holds the sensor in place.

That has a 90 chance of solving the problem. If that should fail replace the pilot assembly and the entire gas valve controller assembly. I turned the heater off at the display panel. Yes it would be the temp sensor and easy to replace.

Now you have access to where the sensor plugs in. Shop by ao smith water heater parts. If the water temperature is exceeding the maximum high limit set for it by the thermostat there. Problems with a whirlpool water heater power problems.

To reduce the risk of property damage serious injury or death read and follow all labels on the water heater and the safety instructions in the printed owner s manual. Internal sensor failure the information on this web site is supplemental to the printed instructions that came with your water heater. If you get this code and have lukewarm water and the pilot is still on try turning up the temperature. It also displays sensor failure.

7 replace gas valve overall failure of the gas valve and will usually require replacement. Thermostat parts valve float parts. Miscellaneous parts motor parts sensor thermistor parts switch parts. Remove the front panel unscrew the four screws holding the front bezel in place.

Remove the side panels where the water pipes are at. Find the most common problems that can cause a ao smith water heater not to work and the parts instructions to fix them.