SKU: C7031D2003. So far I have covered initial troubleshooting steps, specifics on diagnosing whether something is a water tank problem or a gas control issue, and the testing of thermocouples, piezos and pilot light issues. Turn the gas control knob OFF, turn the gas supply valve OFF, and click on "Need More Help" below. If the temperature sensor reading isn’t of acceptable standards, replace the temperature sensor. Deliberately, maliciously, and probably under the pretense of safety. So I removed the PCB (printed circuit board) from its housing by unscrewing the torx screw and snapping the PCB from the housing. So I figured the system should reset itself once the over temperature condition goes away. Lastly, if you run into any kind of crazy situation with smells, tastes, hissing noises, condensation dripping, explosive combustion chambers, etc., it is time to do a combustion test. If the pilot does not light, the water heater will not heat. In this final article, I’ll cover temperature sensors, erratic combustion and thermal switches. Temperature Too High Low Water Pressure Water Odor Check both the cold and hot water at a Harmless bacteria normally present Scalding Risk sink to determine if the lower pressure in tap water can multiply in water A water heater can is only on the hot water side. I first saw the LED flashed 7 times, which means “Gas Controller Valve Failure.” Doesn’t sound good. Turn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly. ... 5" PT1000 Hot or Chilled Water Sensor w/ well C7031D2003 5" PT1000 Hot or Chilled Water Sensor w/ well. That sounded easy. Again, if you want a safe setting, you should choose a setting which has temperature at 120 degrees. Honeywell is one such label present in almost every household on the American continent. Now drain 1 gallon of water from the bottom of the tank as quickly as you can and get an accurate temperature reading. To install the water heater control, screw the sensor and well assembly into the spud until the bracket is square. Still no go. If the pilot is restricted, try removing it and clearing it with a stiff brush and/or compressed air. The WV8860Q Water Heater Control is designed for use in Standing Pilot applications using an immersion well for water temperature sensing. The pin probes are meant to test pins on the small plastic connectors because regular-sized probes will only damage the pins when you force them into the small holes. Pilot stayed on but burner would not ignite - status light now showed 5 flashes followed by 3 sec pause meaning water temp sensor failure. Open a hot water faucet in the house and then turn the cold water supply on to the water heater and allow time for the tank to fill with water. Turn off electrical power at breaker. Before you get into how to test the temperature sensor, try power cycling the unit. When this happens, the gas valve closes, extinguishes the pilot light and your water heater stops heating water. It’s composed of serveral thermocouples connected in series to create roughly 350 mV of energy. … What else could it be? Anthony Pacilla is a registered master plumber for McVehil Plumbing in Washington, Pennsylvania. Make sure there is no flow of water through the water heater and turn the cold water supply off to the water heater. The assembly should be as clean as you can get it and then be reinstalled and tested for proper flame. Detect water with sensors on the unit or expand coverage with the included 5 ft. water sensing cable. Gets too hot switch trips and opens when the water heater in the burner in your inbox drain... Led started blinking once again Removing it and then check the igniter and flame ceramic. 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