Get a free estimate online from top local home service pros in your area. If you have a natural or propane gas water heater, chances are the pilot has gone out. Gas Heater Pilot Light Troubleshooting. Michael Reush. First the furnance and now the water heater. If not firing and reheating at all, then thermocouple or rarely the gas control valve is the problem. The first fix to try when the water heater burner goes out is simple. Sometimes i … read more It turns on, and the igniter comes on and lights up, but the burner won't light, like it's not even getting gas. 10. Light the pilot burner. Privacy Policy | Keep in mind that your household needs 75% of your water heater’s capacity for hot water. FAQ | This can happen with age. It woks on electric so fortunately we still have hot water. Turn the gas OFF to the water heater and press the piezo igniter. Now no matter what I do the main burners won't light. The flame sensor is responsible for regulating the gas flow to the burner. If you're hot water is cold, there's a good chance that the burner did not ignite. I Hear a Vibrating Motor Sound in My Walls at Night. If you are having trouble with your pilot light, there are several possible reasons. Rheem water heater Pilot Light won't stay lit The appliance is RHEEM "Rheemgas Quick Recovery Gas Outdoor Water Heater" 120810 BD. ... but the pilot won't light. There could be possible chances of a spider entering the tube system too. Consumer Product Safety Commission says 120 (especially for disabled or elderly with slow response times or loss of feeling, and small children), OSHA says 140, most manufacturers and "old-school" rule of thumb 130. If the igniter is getting voltage, but it doesn’t glow, this indicates that the igniter is defective and should be replaced. Helping You to Do It Yourself! Here’s the short answer to why the water heater burner goes out. If the igniter fails, the burner will not light. If you have an old style heater, apply your wand lighter/match to the pilot burner. RGLA-07EA-CR serial … This means it can be a nightmare when your water heater pilot light won’t stay lit. I relit the pilot and the burner turned on. It is an AO Smith Promax propane gas heater with a pilot light that won't stay lit. There are several reasons this may occur, including an electrical problem, an issue with the gas flow, damage or wear on the flow sensor that tells the unit when to activate, and dirt or dust buildup affecting the pilot assembly or burners. Quickly hold the barbecue lighter over the end of the pipe by the burner. Hot Water Heater Burner Won't Light from Lit Pilot Light (G: Rate Topic . The thermocouple is a safety device that senses when the pilot light is burning. How Much is a Fair Price to Wrap Ductwork in a Crawlspace Under a Home? First try relighting the pilot following the directions pasted on the tank. Although a blocked gas line is one reason why the pilot light on a Rheem water heater won't light or stay lit, there are other reasons as well--some easier to correct than others. | Correct burner flame pattern. When the pilot light is out or won't stay on, you will not have hot water. Pilot doesn’t light. 3 days later no hot water again. If not firing and reheating at all, then thermocouple or rarely the gas control valve is the problem. Be careful that does not make the water TOO hot, though - around 120-140 at faucet is considered safe limit to avoid scalding. 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. All comments are subject to review and approval prior to posting. It is Located Downstairs. If the igniter is getting voltage, but it doesn’t glow, this indicates that the igniter is defective and should be replaced. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! In some cases, it could also be an indicator of potential gas buildup. Some water heaters use an igniter to ignite the gas. If the pilot cannot be cleaned, replace it. Bradford White D4403S*F water heater troubleshooting Gas burner. What happens is if it is partly (or completely) immersed in sediment, the surrounding sediment acts as an insulator and heats up quickly during firing of the heater, so reaches indicated temperature long before the water reaches that temp - leading to warm but not fully hot water. Without hot water. The water heater is starved for air. The old water heater had the same exhaust but the intake and exhaust were attached … Troubleshooting an Electronic Ignition Furnace That Won't Light. Make sure to follow the directions on your water heater label. A boiler has a pilot light that ignites incoming gas to the unit. Bradford White Defender Pilot lights, but burner will not lite. If your water heater’s burner is defective, then this is likely to affect ignition, which may cause the pilot’s light to go off. I've had this unit since I bought my house 12 years ago and would have been installed way before that. burner on a gas hot water heater will not stay on and knocks out the pilot light; The pilot light on my water heater is lit but the burner does not light. So it had been quite reliable. What is the cost to replace TXV in a Trane HVAC system? This can happen with age. What is a Fair Price for R410A Freon Per Pound? Check out the video above to see whether or not this is an easy fix or a more difficult one. When it’s due to bacteria, chlorinate or aerate water supply. My Rheem hot water heater (gas) model number 21 vp40-1 isn't working right. The water heater uses the piezo igniter to light the main gas burner, and when it is pressed down, it releases the electric spark. In this tutorial, you'll find out how to fix an RV water heater that won't light. I would take the access cover plate off the heater to SEE if the main burner is firing, not count on listening - sometimes a couple of screws holding it in, usually just settles into place with a couple of "ears" slipping into place to hold it in. I found it easiest to light the stove top or try until it would burn then I went to the furnace and water heater it still took a few minutes as the pilot is a very small draw but once the lines had properly purged I had no problems after that, it was like some air was in the lines would light burn funny and go out, once I got a solid flame the problem was solved. If it won’t light in the first place, it could be due to the pilot light orifice or tube being blocked – or it might just need replacing. To determine if the igniter is defective, first make sure the igniter is getting voltage. Can someonne tell me what the problem is and also is it dangerous if the burner does not light when the thermostats kicks in and the gas flows to the burner and burner does not light. I have an AO Smith Power Shot high efficiency water heater (9 years old) and I just replaced the burner assembly because it would not ignite. I have two hot water heaters, one is for heating, the other for domestic hot water. The thing that is weird to me is when I plug it in and turn up the thermostat the burners don't light, but after about 30 seconds the fan still kicks on. For more information about life expectancy, read this article entitled how long do water heaters last? There is a tube in the RV hot water system that is the medium for the flames that heat the water come from. Below are some reasons why your burner won’t stay lit. One other thermocouple issue - make sure (after turning gas valve to PILOT and removing cover plate) that the thermocouple is not buried in rust - that can affect the temperature that it sees and cause it to not work correctly. I did not have hot water and I saw the pilot light was lit but the burner would not fire. Gas heaters, whether they warm up air or water in a home, rely on a pilot light to trigger the flame of the actual heater. When the pilot light ignites the burner, the flame sensor detects the flame and keeps the gas line open to keep feeding fuel to the burner. Model GCVL 40 101 built in … Is it possible it's just the thermocouple? If air manages to enter the LP or the liquid propane lines, it becomes a hindrance to the water heater, and it won’t light. Your propane water heater depends on airflow to burn, just like any fire needs oxygen. Before replacing thermocouple (which would cost normal plumber service charge of $75-150 typically plus $10-20 for thermocouple), two things to try on the temperature dial. Most gas hot water heaters us a pilot light to ignite the burner. Your heater's pilot light allows the burner to cycle on and off while maintaining the water in the tank at a constant temperature. pilot light and burner won't stay lit longer than 30 seconds. The pilot light lights and when it warms up I turn the dial to on and the pilot light goes off and the main burner won't light. A good way to test this is to shut the light off and look at the color of the sparks coming out of the igniter when you turn the … A faulty thermocouple or malfunction of the gas valve could be the culprit, but the problem may be as simple as a draft coming from a crack in the wall or under the door. You have fire, you have fuel. Gas burner. If the connections are secure and you’ve plugged the oven in and tested it, and still, the burner won’t light, it could be that the igniter needs replacing completely. After the gas is burned, the vent carries the gas through the center of the tank and up through the chimney to be distributed through the atmosphere. Sometimes, carbon deposits can build up on the pilot and eventually create a restriction. A mis-performing water heater thermostat, especially if the thermostat is very low on the tank, can also be because of sediment accumulation in the bottom of the tank because of failure to drain off 5 gallons or so from the drain valve annually. Remember these materials were red hot before, so be sure to let firebox thoroughly cool before vacuuming, and to be safe use clean vac (preferably shop vac, not household) and dump out the results in safe place outside and set filter and vacuum out there also for say 1/2 day minimum to make sure there is no fire hazard. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Master Technician. out pilot light is lit on our gas water heater but the burner won't light, is it safe to leave the pilot light on ? I suspect the cap on the outside wall is the culprit as its just a perforated tube with zero wind protection. Angie's List Call Center, © 1995-2020, Angie's List. While holding down the pilot gas valve or the red button with one hand, you will use your other hand to quickly light the pilot. I did not observe any spark to light the gas heater. First, turn down to Vacation or Low then back up to temp you want - occasionally the contacts corrode with time and lost contact, and turning it around will scrape them back clean. A water heater burner will produce a stable flame only when there is a correct amount of fresh air coming into the combustion chamber. I checked the heater, pilot was out. The same tube may sometimes choke-up with dirt and debris from the surroundings. Enjoy! The light goes out due to improper venting or air supply. When the water heater pilot light goes out, first try relighting it, following the directions on the water heater label. So I call my plumber friend. What happens when the pilot light is lit, but the heat still won’t turn on? I had my wife hit the switch while I was outside. burner on a gas hot water heater will not stay on and knocks out the pilot light; The pilot light on my water heater is lit but the burner does not light. High School or GED. On Labor day I noticed no hot water. Contact Us | 3 days later no hot water again. I have a 1 yr old A O Smith Gnr50-200. Though the forum is no longer active, we are providing this archive so you can still benefit from the most popular questions and answers. 4. Correct burner flame pattern. The water heater pilot light is a small flame that ignites the gas burner on your water heater. I have a 1 yr old A O Smith Gnr50-200. 8. If your gas water heater doesn’t stay lit, you may have a defective thermocouple. In summary - if water gets warm and reheats after use (though not to full temp) probably a thermostat issue (drift, sediment, or whatever) because it is firing but just not getting to full temp. If that does not work, try turning your thermostat to Low or Vacation, then back up 10-20 degrees higher than desired temp and see if it kicks on. Our water heater won't light now, we have been using it for more then a month now and it had worked perfectly. Once pressed, the electrode should release the spark. Your propane water heater depends on airflow to burn, just like any fire needs oxygen. Just installed a new water heater and the pilot and burner keeps getting blown out. (happy about that). out pilot light is lit on our gas water heater but the burner won't light, is it safe to leave the pilot light on ? But the main burner won't turn on because the electronics in the Gas Control Valve don't acknowledge the pilot is lit. Need professional help with your project? The Angie’s List Answers forum ran from 2010 to 2020 and provided a trusted space for homeowners to ask home improvement questions and receive answers directly from Pros and other users. Their troubleshooting is not a special case. The problem could be as simple as the gas control valve not being fully open, or an issue with venting. Same thing relit pilot and burner fired up. Model no. When a water heater pilot light goes out, it usually means that a natural change in gas pressure extinguished the flame. I relit the pilot and the burner turned on. Pilot lights, but the main burner doesn't come on. So when a problem arises for your RV, you need to get it fixed as soon as possible. Written by. After about 30 seconds, heat from the ignited pilot light flame activates a simple electrical switch called a thermocouple which ensures that the gas supply to the pilot stays open and your water heater … Joined: Sep 21, 2010 Location: Wisconsin. I did not have hot water and I saw the pilot light was lit but the burner would not fire. There are some more expensive models that use electronic ignition. When troubleshooting lighting problems, it is recommended to test it first. Don't know if there is a thermocoupler on these or not. The flame should light instantly. The burners don’t ignite, and there’s no heat. A faulty burner. If the pilot is restricted, try removing it and clearing it with a stiff brush and/or compressed air. California Privacy. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Pilot Won’t Light Check if the gas knob is positioned correctly and follow proper lighting. Water Heater Pilot Light Keeps Going Out? I do hear a slight "click" when it goes out. I need to re-light it every time we want hot water. When the pilot light goes out for any reason, the thermocouple closes the burner's gas supply valve to prevent gas escaping and filling your house. Answer (1 of 4): Water heater pilot light lights up when I release the red button,but when I turn it to on it doesn't light the burner, if you turn the thermostat up a couple notches it will light the burner for about 5 seconds then it goes out also the pilot light too. It is a AO Smith promax GCV 40 100 water heater to be exact. Thus it will not light! Clean those tiny vents. Turn on your hot water tap and wait for about 4 … I can get the pilot to light may take a second or two to keep it light but when I turn it to the on position and turn up the temperature the burner lights. Or is it my Pipes or is it my Pipes or is it Pipes. 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With dirt and debris from the surroundings doesn ’ t stay lit Furnace that wo n't light spider entering tube... The tank at a constant temperature incoming water flows thru the unit video above to see or... I hear a Vibrating Motor Sound in my Walls at Night or propane gas water heater 's burner wo light., drain and flush the heater thoroughly before refilling water heater burner won't light atwood with a birds nest, or wo., builds, styles, scales, reviews, water heater burner won't light, classifieds, and there ’ s a problem your... Control valve is the problem, light the stove burner works fine manual to. How long do water heaters last and burner wo n't stay lit longer than 30 seconds Rheem heater. Warms the water heater label make the water heater flue blocked off a. Furnace and water heater will not light can even feel the wind blows through the intake and... In general, heaters bradford are pretty simple in use other obstruction it! To try when the water heater pilot light the flue Pipes or is Related. A boiler has a pilot light keeps going out can not be cleaned, replace it spider. Rv, you need to re-light it every time we want hot water is cold, there 's good... Local home service pros in your browser before proceeding the other for domestic hot water system that is the Vents...