Water Heater Temperature Sensor Failure

The temperature reading is very critical and detail is of the utmost importance.

Water heater temperature sensor failure.

Find the most common problems that can cause a ao smith water heater not to work and the parts instructions to fix them. Shop by ao smith water heater parts. If the water temperature is exceeding the maximum high limit set for it by the thermostat there. 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.

Now you have access to where the sensor plugs in. Now drain 1 gallon of water from the bottom of the tank as quickly as you can and get an accurate temperature reading. If that should fail replace the pilot assembly and the entire gas valve controller assembly. So i took the temperature sensor out it had a little corrosion on the tip so i.

It has a printed circuit board inside that with age develops microscopic cracks in it that tends to cause the intermittent sorts of problems that you are reporting. In some cases it is recommended to keep the thermostat temperature down to prevent exceeding the limit. Problems with a whirlpool water heater power problems. Remove the front panel unscrew the four screws holding the front bezel in place.

Shop by popular models. I turned the heater off at the display panel. Yes it would be the temp sensor and easy to replace. Look up the manufacturer s chart for sensor resistance at various temperatures and figure out what your resistance reading should be.

Drain about 4 to 5 gallons of water out of the drain valve at the bottom of the water heater and throw it out. 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. That has a 90 chance of solving the problem. Thermostat parts valve float parts.

Internal sensor failure the information on this web site is supplemental to the printed instructions that came with your water heater. With the pump off you will see the white nut that holds the sensor in place. Remove the side panels where the water pipes are at. 7 replace gas valve overall failure of the gas valve and will usually require replacement.

Most whirlpool water heaters come with diagnostic code lights that can help pinpoint problems. 5 replace gas valve this indicates a sensor failure and the gas control valve must be replaced.