You may freely link Yesterday everything was fine. If you are on propane by chance make sure your water column is set right at the regulator, that was a problem I had in the past, a call to your provider and they will send a tech out to check it for you. Updated: Apr 23. In some cases, it could also be an indicator of potential gas buildup. A faulty thermocouple may arbitrarily determine that the light is off when you want it on and vice versa. Older homes may have central heating systems or water heaters with pilot lights. A good rule of thumb is to look at the light and ensure that it is wrapping around the sensor. While not as common as thermocouple issues, it’s an easy fix and should thus be rules out early on. This is a more severe scenario, as it may require replacing the part. It won't stay on. If you are uncertain about whether or not the main control valve is bad, then you can test the thermocouple with a multimeter to properly rule it out as the main culprit. I think your ways are pretty easy to do and I am gonna try them. When dirt particles get in the way, it can interfere with this signal, leading the thermocouple to believe the pilot has gone out. Make sure to follow the directions on your water heater label. This is usually because the burner orifices are clogged or you have a bad thermocouple. In such extreme cases, the only solution is to call in an expert to examine the water heater fully. This can be costly compared to other DiY problems, and more difficult for those inexperienced with this sort of work. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. All information is provided "AS IS." Sorry dont have the model yet. Try cleaning the vent underneath the water heater. Attempts to re-light the pilot light are futile. Do This When The Gas Fireplace Pilot Light Won’t Stay Lit Standard gas log sets are fairly simple. We’re in the same boat. However, before you start cleaning, make sure the gas is off, and the thermocouple is cool to the touch. I hope I don’t have to buy a new water heater. View our Privacy Policy here. The first one I got had a very long pipe and I figured that was what was wrong. Robertsdale, Baldwin. Got up this morning to no hot water, went out and noticed that the pilot light was out. Make sure to clear/clean out around the water heater or any nearby vents to the exterior so it can “breathe” a bit better. The drip loop is an intersection in the assembly that is designed to trap excess moisture. All rights reserved. So I had a hot water tank that would not stay lit for more than a month. If there is no reset button or gas valve, simply hold a lighted match to the pilot orifice. This problem only occurs in the summer. This tubing connects to the gas controller and will ensure a steady stream of gas. If this tube is clogged or dirty, there won’t be enough gas flow to keep the flame strong. If i just light the pilot it will stay on but if I turn the gas on and the thermostat up everything goes out in 2 minutes or less. Gas hot water heater turning off gas furnace. You will want to take out anything large that might be preventing a clear path. Without any gas supply, your pilot light won’t stay lit. Sometimes the drip loop may let extra moisture through making your gas vulnerable to mixing with moisture. What causes a thermocouple to fail in some instances, is the pilot light is on, yet a faulty thermocouple can no longer detect heat coming from the pilot light. Drafts A draft might be the reason your pilot light keeps going out. I am not sure which fixed it but my pilot stays on now! Furthermore, a healthy pilot light should appear blue in color. This should ensure the component is working properly. Appreciate any help from professional out there. Maybe there’s a problem with your gas supply, that’s why our wall heater didn’t stay lit. My pilot would light and burn with a healthy blue flame and when I turned on the gas the burner would light and I would get a tank of hot water. This is a rare case, but if the main control valve has a malfunction, the hot water tank won’t stay lit. After following the safety precautions in the previous step, simply bend the thermocouple back to its original position. How to Install a Gas Shut Off Valve in a... How to Install a Gas Shut Off Valve in a Gas Furnace. Scrap this thread. Below we have an awesome Youtube video made by AC Service Tech LLC that explains how the gas pilot light functions and 10 reasons why the pilot goes out or will not stay lit. any ideas? After turning the gas off and waiting a few minutes for the pilot to cool, simple take a needle and clean out the tube. Then I unscrewed the new thermocouple at the control valve and put it back finger tight plus a quarter turn. What do I do? A thermocouple is a safety device and is a component of the ignition system. 5 Reasons Why Your Water Heater Pilot Light Won’t Stay Lit, DIY Solar Water Heater: An Ultimate Guide. Sometimes, this tubing will get kinked in places which will prevent proper operation. Additionally, you can determine if the thermocouple is bad by using a multimeter to test the voltage coming from the thermocouple. Something's wrong. At this point, it has to be the controller. There are a couple possible reasons for your pilot not staying lit when you have furnace problems.. Sometimes, I encountered a problem that the light RV water heater pilot didn’t work and this is so bad to me. Maybe the pilot stays on for a moment and the furnace attempts to fire, but almost immediately shuts down. This is also a likely cause if the pilot won’t ignite at all. Not only does it prevent a furnace from operating properly, but an unlit pilot can also steal away the comforts of a hot morning shower. Why did it just all of a sudden go out. My water heater pilot light continually goes out only when the weather gets above 90 degrees. If the flame isn’t strong enough, the thermocouple won’t sense it and may shut off the supply of gas to … This is a good rule of thumb for relighting the pilot in general, not just for diagnostics purposes. Pilot light issues are some of the most common problems experienced with gas water heaters. The Pilot Light. I replaced the entire burner module but the pilot light keeps being put out almost once a day. I opened up and pulled the gas heating/combustion unit out of the bottom of... Gas water heater pilot light will not stay lit. Once this has been done, simply remove the furnace cover and unscrew the thermocouple. If your furnace’s pilot light won’t stay on, the furnace won’t work. In this case, you may need to replace your pilot light. Dirt and debris can collect in the pilot tube, causing the flow of gas to be blocked. This tubing connects to the gas controller and will ensure a steady stream of gas. How Do I Test My Thermostat To Make Sure It Really Works? First I disconnected the pilot tube from the control valve and blew compressed air through it to be sure it was clear. On occasion, the tube can become kinked, interrupting the flow of gas. Due to this, the pilot does not get enough fuel to stay lit. Thermocouple problems can be fairly common, and this component is often the culprit when the water heater pilot keeps going out. I folks. It’s designed to determine whether the pilot light is lit and then subsequently signals the gas valve to open. Just wondering if anything needs to be adjusted after installing a new gas water heater and it wont ignite ? Can you help answer my problem? The air inlet gets clogged with debris. The flex tube is how the gas reaches the device, and if the continuous flow of gas is interrupted, the pilot light won’t stay lit. Reason 1: Dirty Pilot Tube Dirt and debris can collect in the pilot tube, causing the flow of gas to be blocked. If the pilot light has issues, multiple reasons can lie behind it. Thankfully, a dirty pilot tube is the easiest issue to fix. The flex tube provides fuel via the gas controller. Replaced the hot water tank and it worked for a day and went out again. If you've checked everything else and the light continually goes out, this is probably the cause. If this is the problem, then unkinking the tube will occasionally resolve the issue. Screwdriver (if necessary) Furnaces of various kinds are gas powered and use a pilot light to supply heat to the unit, including standard home furnaces and floor furnaces. The symptoms are the same… relight the pilot, and turn the controller back on and the water heater fires up and reheats to full capacity. Usually it’s so labor intensive to fix, people just replace their tanks. If the gas furnace pilot light won’t stay lit, the thermocouple will shut down the gas valve, so gas cannot be released into the home. Do not try Most water heaters operate with a thermocouple. All of the above mentioned causes can be diagnosed and remedied by the average homeowner. problems contact webmaster@doityourself.com. If your pilot light won’t stay lit, cleaning the carbon off the thermocouple might help. Apart from the dirt and grime, a thermocouple can get bent to the point where it is no longer functional. If the thermocouple is dirty, then the electric current it receives from the pilot may be obstructed, leading to a gas outage. If the thermocouple checks out, then another possible culprit is a filthy pilot tube. Take note that it’s the pilot head, not the thermocouple. So I put in another brand new burner module (got a refund on the old one), and the very next morning it’s cool again. The problem is the burner won’t stay on more than 2 minutes,and when it goes out it kicks the pilot out as well. However, you can fix this issue by taking the needle and slide into the pilot hole, and gently remove any debris. Any ideas on what causes the issue and how to fix it? The thermocouple detects the pilot light via sensors. Another possible reason why a pilot won’t stay lit has to do with the flex tubing. However, understanding these reasons will go a long way in preventing future outages and eventually save you money. There is a chance that your thermocouple has simply gone bad and is the reason your pilot light won’t stay lit. I just posted a comment that should help hopefully. The Fix: Pilot Light to Gas Fireplace Won’t Stay Lit. As a result, the pilot doesn’t get enough fuel to stay lit. When the thermocouple is faulty, the gas valve can no longer stay open, which cuts off the fuel supply to … Excess moisture in the gas line can also be a possible cause of pilot light problems. Malfunctioning Flame Sensor. Ensure the thermocouple is cool to the touch. This is one of the most common reasons the burner won’t stay lit, even when the pilot seems to be in working order. I just went to the store to grab a couple th... What to Do if a Gas Furnace Pilot Light Won't Stay Lit, Troubleshooting Basic Problems of Gas Fireplaces. Typically, the flame should lightly touch the thermocouple or be close enough to heat the device. The thermocouple has been damaged. If the pilot light on your gas fireplace won’t stay lit, a very likely culprit is a component called a thermocouple. Any reading below 20 MV indicates a bad thermocouple. submitted to our "DoItYourself.com Community Forums". Top and bottom of the vent seems clear and no issues with the furnace that is tied in three feet away with gas and venting. Unfortunately, there are a variety of reasons why pilot lights go out, all of which are dependent on a number of factors. This is more common with water heaters located in attics. Examine the thermocouple. Either you aren?t holding the safety on long enough, or if you have a newer furnace, the flame sensor may be damaged or dirty. Tools Needed. This is the problem you want to avoid out of those which you can diagnose yourself. Without it, the water heater won’t be able to maintain internal temperatures, allowing the water to cool off. A fierce, freezing draft sends shivers down your spine. Compressed air. Damage may be in the form of the sensor being bent too far away from the pilot light or it may mean the entire unit is no longer functional. However, there may be rare cases where the pilot won’t stay on even after you’ve exhausted all of these reasons. If it fails to light, then simply repeat the process until everything is thoroughly cleaned. Save my name, email, and website in this browser for the next time I comment. So I watched a few videos and decided to try two things. A healthy flame will be blue in color. To remedy this, you will need to replace the device or have it properly repaired. My Furnace Pilot Light Will Not Stay Lit?My furnace pilot light won?t stay lit! Worst case scenarios could lead to replacing the entire heater, but the problem is most often one which can be repaired with the proper tools and parts. The draft can come from under a doorway, through a window or even from under the floor. Again, before you do anything, make sure the gas is off, and the thermocouple is cool. The easiest way to diagnose a bad control valve is to try all other solutions first. My pilot light stays lit but the gas flame goes out after a minute. The primary reason a pilot light won't stay lit is simply equipment malfunction. Another possible reason why a pilot won’t stay lit has to do with the flex tubing. It’s not the supply… the thing heats up with no issues. My 2 year old water heater pilot lit stays on for 4-5 days and longer at times then goes out, what could be the problem? Water Heater Pilot Light Keeps Going Out? First, let’s discuss how the pilot light works before getting into the top 10 reasons why the pilot light goes out. If this is the problem, then unkinking the tube will occasionally resolve the issue. This is often a ventilation issue. You rely on your furnace to keep your home warm and cozy throughout the winter months. NO one addresses this. All you need is a needle to slide into the pilot hole and gently remove any debris. If this doesn’t work, than new tubing will need to be installed. As a result, the pilot doesn’t get enough fuel to stay lit. Luckily, fixing this is an easy and straightforward process. A pilot light can also … The next thing I know, many hours later (or overnight) the water is lukewarm and the pilot has to be relit. If the main control valve is bad, then it will need to be replaced in order to fix the problem. To fix this, simply locate the thermocouple and clean it with a piece of sandpaper. There is gas flow to the other appliances in the house. DoItYourself.com®, founded in 1995, is the leading independent Replaced the Thermocouple and it worked for a couple months and then started going out again. 1. This usually happens when the tube is kinked at one or many points. Suggestions? Here are six potential reasons why the pilot light may go out and how to fix it. Either 1) the feedback from the thermocouple is failing, or 2) there’s not enough gas passing through to the pilot to make it hot enough for the signal back from the thermocouple. A thermocouple which shows no signs of damage and is clean should be tested with a multimeter. 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