Fire pit Dimensions A B C.875 TYP. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Hearth Products Controls 311-T/C Replacement Thermocouple, 72-inch . The thermopile is a related device that you should test at the same time -- its function is to open the gas to the burners. Step 2 – Clean Gas Pipes. Turn the gas back on and relight the pilot light. How to Increase Flame Height on a Gas Fire Pit Step 1 – Remove Fire Pit Lava Rock. The thermocouple lasts for 10 years or more, and when it fails, the pilot won't stay lit and the fireplace won't work. NOTE: Do not place fire pit directly on grass, dirt, or rocks this may prevent proper ventilation (Fig. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. Unscrew the thermocouple fitting and remove it from the valve, using a 7/16-inch wrench. For further assistance, please call our Customer Care Center at 1.800.762.1142. Only 1 left in stock - … TMS Burning Sur Fire Pits REV. Use a gas leak detector liquid to find leaks in the supply line, valve or fittings. © Copyright 2020 Hearst Communications, Inc. You should get a meter reading of 20 to 30 millivolts (or within the low range of the thermocouple's rating; voltages vary by product). The usual procedure is to turn the gas valve to "Pilot," push in the knob and depress the red ignitor button until the pilot lights. If the pilot goes out, relight it and check the flame. It’s easy to replace and a new one costs $5 to $10. Inspect the supply line for cracks or breaks. Leave the pilot end of the thermocouple in place. Fig. One of them may be blocking the thermocouple from the pilot. The best way to do this is to follow the wire back from the tip of the thermocouple, which is right next to the pilot light. 1 cause of pilot lights that won’t stay lit is a worn-out thermocouple. To access the gas pipes, remove the lava rock in your fire pit that covers these pipes. If the reading is less than 20 millivolts, it's time to replace the thermocouple. It should be about an inch in length and predominantly bluish in color, and it should be in contact with the tip of the thermocouple. The thermocouple on your gas furnace is a heat-sensitive device that transmits a small electrical signal to the gas valve to keep it open when the pilot is on. Turn off the gas valve immediately. Remove the other end of old thermocouple sensor at its mount at the burner or pilot flame. Thermocouple vs. Flame Sensor . Give the thermocouple about 15 minutes to heat up and then turn on the flame to make sure it all stays functioning. Pull down gently to pull the thermocouple's end out of the mounting well on the gas valve. Relight the pilot and try the test again. Wishlist. Make sure the propane tank is full, properly connected to the fire pit gas supply hose, and that the propane tank valve is turned on. Unscrew the thermocouple fitting and remove it from the valve, using a 7/16-inch wrench. Locate the pilot, often behind a removable grill running along the bottom of the fireplace. Step 4 – Increase Gas Tank Pressure. Remove the burner assembly and detach the thermocouple. Tighten retaining nut and follow lighting instructions. Adjust the position of the thermocouple valve relative to the pilot flame; it may be too far away. Replacing a Thermocouple or Thermopile if Cleaning Didn’t Work. Step 3 – Adjust Your Flame Adjustment Valve. This 9 in. Apply a liberal amount of gas leak detector liquid to the supply line, valve or fittings. L thermocouple is most commonly used for fire pits. 3.5 out of 5. Thermocouples wear out and are replaceable, but you should conduct a few simple tests before doing that, because your gas pilot may be going out for another reason. Fire pit dimensions; refer to Table 1. The thermocouple on your gas fireplace is a heat-sensitive device that keeps the pilot gas tube open while the pilot is lit. Before you replace it, though, it's a good idea to test it with a voltmeter to make sure it's actuall… If you have an older fireplace, you may have to light the pilot with a long match. And is made of copper. Place the new thermocouple in the same place your old one sat and close up the fireplace to conduct a test. To replace a thermocouple: Step 1: Unscrew the copper lead and the connection nut inside the threaded connection to the gas line. Light the pilot using the recommended procedure for your fireplace. 900mm with five nuts gas parts thermocouple gas valve for gas. How to Replace the Tilt Switch on Pro Series Item #'s 61159 & 61436 PRO Series Ignition Module Replacement Item #'s 61159 & 61436 Fire Sense LPG Patio Heater Thermocouple Replacement Use an air compressor to blow out dust, ash, or debris in the fire pit gas pipes. It does this by generating a small electric current -- on the order of 10 to 30 millivolts -- as a signal to the gas valve. If it's small and orange-colored, the pilot tube is probably obstructed. A Page 4 TMSI SPECIFICATIONS Table 1. You need to hold the valve in for 5 seconds once the burner is lit to allow the thermocouple time to heat up. 9 Cannot turn the … Typically there is a clip that holds the thermocouple to the pilot flame tube. Step 2: Under the mounting bracket at the thermocouple tube, unscrew the bracket nut that holds the tube in place. Check the pilot flame. Move the thermocouple tip closer to the flame if it was not within the flame's reach with the pilot was lit. 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