Note: You must have the pilot lit and the burner on to test for leaks, so that gas is flowing through the large tube. To troubleshoot a Napoleon gas fireplace that will not stay lit, check the drip loop, the pilot light, the thermocouple and the gas valve to ensure all components are clean and working before replacing. The instructions do not say what to do if this happ. If the gas fireplace shuts off after a few minutes, it's pretty much always going to be a pilot head issue, or a valve issue. This usually happens when the tube is kinked at one or many points. The pilot light in your gas furnace supplies heat to your home. If the pilot light in the Heat & Glo will not stay on, there are some steps you can take to troubleshoot the problem, so you can then correct the issue and keep the pilot light lit. It just that the pilot won't stay lit long enough so that I can turn the knob to ON. If you want to troubleshoot the problem, first you need to understand the workings of a furnace ignition system. The gas regulator wants at least 250 mV DC to keep the pilot lit and 400 for the main burners. My Boiler’s Pilot Light Won’t Stay Lit! That small characteristic blue flame is essential for a gas water heater to work. If your pilot light ignites but won’t stay lit, then the problem is most likely related to your thermocouple, a metal sensor (about the size and shape of a sharpened pencil) that heats up by direct contact with the pilot light’s flame, telling your gas valve that the pilot light is lit so it’s safe to open the valve to let gas flow. Do This When The Gas Fireplace Pilot Light Won’t Stay Lit. This can happen with age. The most common reason the furnace pilot light won’t stay lit. Take note that it’s the pilot head, not the thermocouple. It is most likely related to the thermocouple. Pilot Light won't stay lit. Joined: 8 May 2005 Messages: 3 Thanks Received: 0 Location: Wiltshire Country: Came back from 2 week holiday to find pilot light on my Stelrad Ideal WLx Boiler had gone out. I've used this furnace for over 15 years without replacing the thermocouple. When I do get the pilot flame to stay on and turn the oven on immediately when it reaches temp it shuts off. Furnace Pilot Light Keeps Going Out. The thermocouple is a small metal probe which is placed in the direct line of the pilot flame. My pilot light wont stay lit. The most frustrating thing is that there are times when the water heater pilot light won’t stay lit and therefore it could need you to troubleshoot the problem and fix it. The first thing you should do when faced with fireplaces that won’t stay lit is to make sure your pilot light is lit. Relight the pilot light. The pilot is typically located inside fireplaces on one side close to the wall. Water Heater Pilot Light Keeps Going Out? I follow the instructions as described on the panel. Check the flex tube: Check along the tube to straighten it, so there’s no obstruction to the flow of gas. The pilot light is flanked on both sides by a piece of the lighting system. If it is directly in the flame and it won’t stay lit then the thermocouple is probably defective and needs to be replaced. When a gas water heater pilot won’t stay lit, the water heater can’t heat the water inside the tank. Turn the thermostat dial (Dial on the front) back to zero. Pilot lights have a safety valve, which should cut the gas when the light goes out. May 26, 2020 4:46 pm Your furnace pilot light or burner keeps going out and it’s so cold! If this still doesn’t solve your problem, you may want to consult a professional. If thermocouple replaced and attempt to light the pilot and still will not stay lit, then the safety valve will be defective and need replaced. MY GAS FURNACE WON’T STAY LIT! I've had this unit since I bought my house 12 years ago and would have been installed way before that. Ive followed all the intructions to relight boiler and it still wont stay lit. I suspected the thermocouple and replaced it, but this didn't fix the problem. When I hold in the pilot button to light it, it does light but when you release it the flame goes out. A Broken or Damaged Thermocouple – In this instance there is something wrong with the equipment and a technician would be required to replace or repair the thermocouple in order for your pilot light to stay lit again. Reopen the shutoff valve. Standard gas log sets are fairly simple. Troubleshooting these problems with a water heater's pilot light can be done at home. Here are some common problems that can lead to a pilot light not staying lit. Turn the control valve to “on”. Then, when you watch your furnace you can find where the problem is happening. You can quickly know if the pilot light is on or off with the help of an electrical current, powered by the pilot’s heat. The gas supply to the pilot assembly is controlled by this valve. Pilot lights can be found on furnaces, water heaters, fireplaces, ranges, ovens and other appliances. There are many components that make the pilot light work, and when they don’t function properly, your furnace won’t stay lit. I own a Vulcan 6 burner. Hi. Pilot light won’t stay lit. If it isn't there and the probe that is in the pilot's flame is clean, the pilot generator needs replacing. A pilot light is connected to a gas line, which keeps it continuously aflame. How the Gas Pilot Light Functions and 10 Reasons Why the Pilot Light Goes Out or Won’t Stay Lit! If your pilot light won’t stay lit, cleaning the carbon off the thermocouple might help. If after a full minute, the flame goes out when you let go of the safety, the pilot may be dirty. 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