When it would reach 115, the flame would go out, and the pilot would also go out. Testing the thermocouple requires special test equipment and therefore replacing it is usually the most practical method of troubleshooting. In this case, you’d gently bend the part back toward the pilot light so that the flame will barely touch it when it’s lit. Remove the burner assembly and detach the thermocouple. The original thermocouple went out about a year ago, and I got a "new" burner door assembly from American Water Heater.It came with the (thermocouple) adapter to go from left hand thread to right hand thread which had two wires going to a long rod that protrudes into the water heater. Remove the orifice or the pilot light tube from the mounting bracket. Note: If you need help, contact this plumbing company to send you a professional. Today, the kits come with a ¼” tube and pilot assembly. Listen if there’s a hissing sound. The pilot light comes on but the pilot assembly won’t get hot . Dirt buildup is another thing that can cause the pilot light in your gas furnace to go out. My Fireplace Pilot Light Won’t Stay Lit. Disconnect the thermocouple by removing the copper lead, unscrewing the gas line connection nut and the bracket nut holding the thermocouple tube in place. When the water heater pilot light goes out, first try relighting it, following the directions on the water heater label. Blast some compressed air through the tube. Here are 5 reasons why your pilot light won’t stay lit and how you can fix it. When the water heater is first lit, a valve releases gas into the burner, and the pilot light … Sometimes, this causes the pilot light to stay on for only a few seconds. The pilot light keeps going out. A thermocouple is located in the pilot assembly at the bottom of the water heater. When lit, it'll kick on normally and heat the water to the desired setting, then the light just goes out, sometimes after the first cycle sometimes 2-3 days later. Shelly Lighting October 25, 2018. Important: Before troubleshooting the pilot light, keep in mind that a pilot flame is always ON and the flame should be blue. That has been a constant issue since they had to get away from the FMEA mercury switch valves and had to go back to those safeties with a thermocouple. Now, have a closer look to find the location of the thermocouple and the pilot light. The thermocouple is a gas furnace component located near the pilot light burner. Verify that the pilot flame is clean and contacts the end of the probe fully before condemning the thermocouple. When you have a problem with your water heater not lighting, look at your water heater pilot light. If so, it will not face the pilot light. When you light the pilot, the flame heats the thermocouple, and when it gets hot enough, it signals the valve to stay open so that the pilot stays lit. If none, then light a match and check the thermocouple connection for leak. It's installed correctly. Check the gas flow from source through the pilot light orifice before replacing a thermocouple. Uncategorized. If the pilot light on your gas fireplace won’t stay lit, a very likely culprit is a component called a thermocouple. How can I get the pilot … Thermocouple problems can be fairly common, and this component is often the culprit when the water heater pilot keeps going out. The pilot can go out for a number of other reasons, however, so if you're having trouble getting the pilot to stay lit, the thermocouple may not be at fault. These brackets have the duty to stabilize their positions. If none, fire it up, and you're probably in business for 10 years or so. I replaced the thermocouple. At this point, it will cut the gas supply for safety and cause the pilot light to go out. The thermocouple is bent. When they first made the change the kits were going out with 3/16” pilot tubes. Make sure to follow the directions on your water heater label. As a result of this happening, your furnace will shut off the gas to your pilot light. Watch out: Before trying a new thermocouple I'd suggest checking for debris in the pilot light orifice or tubing. It is a safety device that shuts off the gas if the pilot light goes out or the electric igniter fails. A breeze blew out the flame: This is probably the most common reason for your pilot light to go out. My pilot keeps going out. The fix: You can try and straighten out the thermocouple or point it closer to the pilot light to see if this fixes the issue. The thermocouple detects the pilot light via sensors. A thermocouple is a safety device and is a component of the ignition system. A faulty thermocouple can cause problems with your water heater not staying lit. No water dripping on pilot light. If the pilot doesn’t relight, if it goes out right after lighting or if it goes out repeatedly, by far the most common cause is a bad thermocouple. I cleaned out the the pilot tube assembly, still won’t produce heat to the unit? One of them is a dirty thermocouple. Hopefully, you’ve done that with care. Water Heater Pilot Light Keeps Going Out? No drafts. The heater won't operate properly if the pilot flickers, is too weak or goes out, and the cause could also be blockages in the pilot tube. Push in the knob. Another cause of a weak pilot is a faulty thermocouple. Water Heater Pilot Light Won T Stay Lit After Replacing Thermocouple. Replace the control knob temporarily and turn it to the ‘Pilot’ position. Cleaning the thermocouple is a pretty simple process but should only be done when the fireplace is turned off and is completely cool. If the pilot light won't stay lit, the thermocouple may be faulty and should be adjusted or replaced. If you need help with your water heater and aren’t sure what the issue is, please let us know what you need and one of our professionals will assist you. If not then you have a problem with the gas valve. I've replaced the thermocouple and it's doing the same thing. When I go to light pilot light, I hold down the knob for 60 seconds, as soon as I let up on the knob the pilot goes out. The thermocouple is as far into its "holder" as possible. Before that, you need to remove the top cover of the light. Hot water heater pilot light won t stay gas pilot light won t veser water heater pilot light won t stay lit pilot lights and thermocouples. Water Heater Pilot Light Won T Stay Lit After Replacing Thermocouple. On 2017-01-16 by (mod) thermocouple that keeps fireplace burning has snapped ... pilot won't stay on after replacing thermocouple (Jan 4, 2015) Anonymous said: ... Then hold the ignite control to keep the flame going for at least 30 seconds. If this is the case, follow the furnace manufacturer guidelines in relighting the pilot light. It’s easy to replace and a new one costs $5 to $10. If the pilot continues to go out after replacing thermocouple, suspect the chimney stack on the water heater isn't tall enough. Here are a few ways to pinpoint a faulty thermocouple as the culprit. My pilot light on my Bradford white gas hot water heater keeps going out. A faulty thermocouple may arbitrarily determine that the light is off when you want it on and vice versa. Pilot light was going out because of a malfunctioning Thermocouple. This can happen with age. One thing to check is the pilot tubing size. Gas and Oil Home Heating Furnaces - Pilot light still won't stay on after changing Thermocouple - Hi guys, 3 days ago I tried to turn on the pilot light and it won't stay on. Replacement of Pilot light on an A O Smith FCV 40 100 Hotwater heater. Make sure that the tank is completely filled with water before lighting the pilot light. If your pilot doesn’t re-light, won’t stay lit or keeps going out after a short time, you most likely have an issue with the hot water heater thermocouple. Dirty Thermocouple. 1 cause of pilot lights that won’t stay lit is a worn-out thermocouple. If you can light your pilot light, but it keeps going out, the first item to check is the thermocouple. Pilot light lights but goes out when the burner attempts to kick on, any ideas? The thermocouple on a gas fireplace may eventually become clogged with dirt and soot, which can reduce the effectiveness of the thermocouple and may eventually prevent the fireplace from lighting as expected. If it is yellow, it needs an adjustment. If the pilot goes out, the millivolts aren't generated and the gas valve snaps shut. The thermocouple probe sits in the pilot flame continuously and will eventually burn out. The rule is "ten and two". Dirty thermocouple: If you can light your pilot light, but the water heater pilot keeps going out, there are many possible causes. It could simply be that the thermocouple is bent. ... as to if you want to go thru all the effort & expense of changing out the gaskets, without knowing if it will still whistle when you are done. always lights right back up after lighting with match, goes out within hours, sometimes days . For more information about life expectancy, read this article entitled how long do water heaters last? I changed the thermocouple yestarday and its still going out ... keeps going out even after new thermocouple.? I leave the burner chamber door open and everything stays lit. Replaced thermo couple three times. I replaced the thermocouple again and the pilot still goes out. A buildup of dirt in the intake valve restricts the oxygen your furnace needs to keep your pilot light going properly. I get a nice blue flame. Once done, remove the bracket of the pilot light and of the thermocouple as well. The nut is located underneath the mounting bracket. I changed the Thermal Coupler and the flame comes on and the furnace lights up to heat the water but then after a while the fl … read more Locate the thermocouple next to the pilot light. I have BP Y600 and have replaced the FMEA with the TS11 but have not switched out the burners. Nothing lasts forever, and when the thermocouple wears out, the pilot won't stay lit and your appliance won't work. This device is designed to pick up an electrical signal from the pilot light’s heat to determine whether or not the pilot is on. Why does my boiler pilot light keep going out after replacing the thermo coupler 3 times? The No. Step 3 Replace the old thermocouple. Its purpose is to not allow the gas valve to open if the pilot light … gas company said gas valve either works or doesn't work.
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