When the pilot light is out or won't stay on, you will not have hot water. If some noise is coming from a tank-less heater, call a pro immediately. I have given the water heater 3 hours to heat water. It's a usually reliable device that works in conjunction with a standing pilot, which is the little flame that, like the Olympic torch, burns while the appliance is in operation. If you can get some help, you may want to consider it. A bad gas valve will not allow any gas to go to the burner or pilot light. Never attempt a repair unless you have turned the gas off and are thoroughly familiar with safe working practices. Gas water heaters need optimum supply of gas at all times. Secure the water supply to the heater and drain the heater. Click on the link above to find answers to these questions. First things first, you should check that gas is coming through to your appliances. If you smell gas, take immediate safety precautions, which include leaving the premises and calling the gas company. See 'Water Heater Gas Valve Problems' for the issues surrounding this device. This is all for a new system. If the pilot burner and the thermostat are positioned in a way such that the flame does not reach the thermostat at full intensity, reposition the assembly accordingly. The lower thermostat controls only the lower heating element so if it fails (but the upper thermostat works), the result is hot water not getting hot enough. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. The sail switch can malfunction, or just go bad. The gas valves and thermostats are slightly different on various models of hot water heaters. Yes, you may only need a $20 part. When the pilot is not lit the gas valve will not turn the gas on. How to you know when it is bad? We'll assume you're ok with this, but you can opt-out if you wish. The thermocouple provides a safety feature for a gas hot water tank. Heater works inefficiently. Minerals in the water, even city water can build up over the life of the water heater. If you have a natural or propane gas water heater, chances are the pilot has gone out. See 'Venting a Gas Water Heater' for information on keeping your vent clear. Gas hot water heater troubleshooting usually leads you to the thermocouple. WARNING!!! A chemical is added to alert people to a gas build up. Obviously, after your power is restored, you need to get all water out of the basement. Installation costs can run from $200 to $1,600. The pressure relief valve very rarely leaks in the true sense of the word. Although natural gas – along with other fossil fuels – has become a very precious commodity, the relatively infrequent and low usage of gas in water heaters means they score above their electric rivals. It uses the thermocouple to determine when it is safe to release the gas. (1) 'Water Heater Pilot Light Issues' - If the pilot light goes out, the water heater won't work. (adsbygoogle = window.adsbygoogle || []).push({}); We are in the whitewater of cost potential here. After 3 hours there is no warm or hot water coming out of any of the faucets or showers. At this point you will have to decide if you are up to the task of replacing the water heater yourself. But opting out of some of these cookies may have an effect on your browsing experience. You could be looking at an hour to change it and ten or fifteen dollars for the part. Your Air Supply or Exhaust is Blocked. A new hot water heating unit can run anywhere from $350 to $3,500. If so, get a plumber to properly separate them. More often than not, it’s just putting everything where it should be. ... Roller, Shaft, Wheel Parts Gas Burner & Control Valve Parts Heating Element Parts Igniter Parts. At times, it also indicates valve failure; in that case, you need to replace the valve. Water on the floor around the water heater may be caused by leaks in the pipes connected to the water heater or by the pressure relief valve. This will cause the burner to operate poorly. Look for the gas regulator valve on the outside of the water heater, located above the … Ensure that the thermostat is set at the correct temperature, and not a few degrees colder than usual. Go to the article 'Gas Water Heater Thermocouple Issues' for information on this common repair. Commercial Water Heaters. This is a safety feature. To be sure your entire house is without hot water, check every hot water faucet and fixture. How serious is it when a hot water heater is leaking? Natural and propane gas can explode. When the... Not Enough Hot Water. It can be resolved by turning down the thermostat. The odor is added as a safety feature. Many problems can have more than one cause. If for some reason gas is allowed to escape without being ignited, you can get an explosive situation. The anode rod has metal in it that is supposed to oxidize in place of the steel in your tank. Follow the links to get to the right information. This website uses cookies to improve your experience while you navigate through the website. If you have a gas water heater, gas wall heater or any other appliance with a gas burner that needs to cycle on and off, there's a thermocouple in your life. Hopefully, even if you wind up calling a technician, you will be able to discuss the problem with him intelligently. There are some more expensive models that use electronic ignition. If your furnace is newer, it may not have a pilot light. WARNING!! Do you have more people in the house, perhaps visiting? Additionally, the chimney that the vent is attached to, can be clogged. The gas … Light the stovetop burner and look for a steady flow with a solid flame. Most gas hot water heaters us a pilot light to ignite the burner. If there’s bad return air flow or not enough venting, the furnace won’t light due to this switch. It could mean a reduced amount of hot water. Gas has an odor to it that you are probably familiar with. Do not ignore any signs of unusual function of the water heater. Some repairs that result from gas hot water heater troubleshooting are fairly simple. The water will vent for two reasons, one is that the pressure in the tank is too high, this should be addressed as soon as possible. See 'Hot Water Heater Gas Valve' for information on what can be done. Over time the minerals in the water will build up inside the tank and some of them can oxidize, thus causing a dark color and odor. Although qualified technicians are best suited for the job, several repairs can easily be done on your own. If the pilot light lights and then shuts off it is not the gas valve. Either type can become clogged. Natural Gas Can BE Dangerous!!! High temperatures of water can cause this problem. This category only includes cookies that ensures basic functionalities and security features of the website. It also uses an integral thermostat to know when more heat is needed. For standard efficiency models there is a 'Hot' vent that is connected to a chimney. Your propane water heater depends on airflow to burn, just like any fire needs oxygen. The other less common problem would be the gas valve. More questions that this article answers. There are two types of vents for gas hot water heaters. Sediment can build up in the bottom of your hot water heater over time. The thermocouple provides a safety feature for a gas hot water tank. En español Live Chat online. In many cases, this problem is thermocouple related. Gas valves are a fairly expensive part and are quite a bit of work to change. Gas hot water heater troubleshooting often involves the thermocouple. Like in the case of the ‘rotten eggs smell’, change the anode rods to ones made of zinc. Clean the tank with chlorine bleach (preferably flush afterwards). I just moved into a new home. See the article 'Natural Gas Safety Tips' for more information. The sail switch is an on/off switch, which when there’s not enough air flow, will stop the furnace from igniting. Some water heaters use magnesium rod for heating the water. Most manufacturers reccommend a setting of 120 degrees. Therefore the water heater gas valve has safety devices built in. Control-R … Obstructions in the vent pipe can restrict the air flow to your water heater. If so, reduce the water flow. Next, use a voltage meter to check the input to the heater, which should be at least 10.5 volts. CAUTION: Do NOT keep a heater running while making ANY repairs. This is caused by a dissolved anode. Gas hot water heater troubleshooting always seems to start with the pilot light. A bad gas valve will not allow any gas to go to the burner or pilot light. Make sure that the shut-off valve, is not closed. No hot water is one of the most common problems in water heating systems. When the pilot is not on, the valve will not allow any gas to be delivered. This gas hot water heater troubleshooting exercise starts with the thermostat. Sign up to receive the latest and greatest articles from our site automatically each week (give or take)...right to your inbox. Another problem is the size of the hot water tank. Go to the article on 'Gas Water Heater Thermocouples' for information on this common repair. If you get no hot water when only one hot water appliance is running and you have a gas tankless unit, make sure that: You’ve paid your gas bill (your tankless water heater can’t heat water without a steady gas supply!) Often, this is printed on the side of the water heater. You be the judge. In some cases, it also indicates that the anode heating rod needs to be changed. It senses when the pilot light is on. 'I smell gas', something you hear or say from time to time is not from smelling the gas at all. When you see water that appears to be leaking from the bottom of a gas water heater, it could be because of condensation (try turning up the thermostat), a leaking or loose drain valve, or the T&P valve draining some water through the overflow pipe due to tank overpressurization. Rather, it … Just take my word for it, it is important. A bad gas valve will not allow any gas to go to the burner or pilot light. If the pilot is restricted, try removing it and clearing it with a stiff brush and/or compressed air. Although gas water heaters are common devices, accidents involving gas can go horribly wrong in a moment. A gas leak is an entirely different problem than a broken water heater. Check the gas burner and does the flame rod … High efficiency models will have a plastic vent that may go horizontally out of of the house. Due to the mechanical nature of gas water heaters, the symptoms are clearly evident even when they are not major issues. If the pilot does not light, the water heater will not heat. Others may require some work. Turn Off Gas. Some heaters have closed thermostat chambers. Necessary cookies are absolutely essential for the website to function properly. Hydronic Air Handler. See the article 'Proper Water Heater Temperature Settings' for safe guidelines on hot water settings. The first thing to check is the thermostat. The first things you should check are the correct supply of electricity, water, and gas to the water heater. Learn what the proper settings are. See the article 'Water Heater Sediment' and 'Flushing a Hot Water Tank' for more information. With city water flowing, or the pump pumping water, when the water heater is full, water will come out of the relief valve. My new water heater does not heat water. These cookies will be stored in your browser only with your consent. There is a procedure that needs to be followed when making changes. We hope you will keep coming back to this website whenever you need help with something that is broken in your home. Removing these depositions can solve the problem. Direct Vent Furnaces. ">10 Unexpected Items That can be Composted, ">6 Ways to Maximize Space in Your Cramped Apartment, ">How to Start a Vertical Garden in Your Home or Apartment, Only Hire These Companies for Mold Remediation in NJ, These Are the 3 Best Plumbers in Bloomington, IL, These Are the Best Plumbers in Grand Junction. If the problem persists, change the rods to zinc. Sorry, but there are more issues than one article can cover. See below for guidelines on what to look for and information on how to fix it. The gas control is set too high. How to diagnose and repair a faulty atmospherically-vented, gas-fired water heater. See 'Fixing Electric Water Heaters'. Follow the above link to get to an article that discusses the issues related to the pilot light. We have tried to point you in the right direction for finding the answer to your problem. A defective thermostat is also possible. Free repair advice! Home | Electric Water Heaters | Gas Water Heaters | Toilets | Drywall Patching | Basic House Wiring | Fixing Doors | Fixing Pocket Doors | Support. If the water from the hot tap goes cold, give a gas unit 15 minutes and an pressure relief valve 30 minutes to start making enough hot water for you to notice at the tap. This causes the dreaded hot water not working situation. Find the most common problems that can cause a Ao Smith Water Heater not to work - and the parts & instructions to fix them. This is a common do it yourself repair that you will probably be willing to attempt. Can you replace this valve if you need to? The thermocouple is usually the problem when this happens. Learn what they are by following this link. Make sure you have finished your gas hot water heater troubleshooting exercise before you assume it is the gas valve. But if you are baulked by the price, do consult a pro before making the decision to trash it, but don’t go for some quick-fix. You need to follow the correct procedure to light the pilot. If you have a gas hot water heater, then your problem may be caused by a leak in the gas line leading to the appliance. The main concern with the thermostat is getting the temperature set right. Otherwise, get a pro to make his diagnosis. Though gas water heaters are generally dependable, they may develop some problems over time. Make Sure the Gas Is OFF!!! See 'Gas Water Heater Vents'for information on keeping your vent clear. If there is even the tiniest gas leakage, replace the gas line immediately. Again, if you don’t have enough hot water, the reason … Find the Right Water Heater Where to Buy Rebate Finder. The other reason would be a defective valve that vents even when there is not a problem. The Water In Your Tank Can Be VERY HOT!!! If this is the case, you may notice a rotten egg smell around the water heater. Check the pipes from the water heater. Deposition and consequent accumulation of insoluble scale in the tank can result in a popping noise when the heater is in operation. Various depositions in the heater, usually due to hard water or dust, affect the heating capacity of the heater. The thermostat needs to be set to a safe temperature. Some things can be tightened to stop the leaks. Natural gas can explode. Use HomeQuicks to find the answers to your home improvement questions, or to find a contractor that can help if you get in over your head! The first hurdle will be deciding what type of water heater to purchase. It does however vent water which can seem like a leak. All too often, restoring the flow of warm air is simply a matter of opening … Incomplete burning operation and improper ventilation cause problems in air combustion, which can hinder the heater’s function. WARNING!! Would you like to write for us? The other less common problem would be the gas valve. Check the pilot light. Well, we're looking for good writers who want to spread the word. When the water heater pilot light goes out, first try relighting it, following the directions on the water heater label. 1-800-269-2609 24/7. Sediment in the tank can also discolor the water. The solution to this problem might be as simple as changing the water temperature settings on your heater. If you think the problem is too difficult to handle, or some operation too risky, it probably is. Water that is too hot can be dangerous. Is yours really bad? See 'Venting a Gas Water Heater' for information on keeping your vent clear. Make sure that the pilot control valve of the heater is turned off before you start repairing. If the gas line is blocked, remove the blockage. A garden hose and a pair of pliers is all you need. Read on for some helpful tips on troubleshooting some common problems in gas water heaters. If not, you may have to call in a technician to sort out the problem. Copyright 2010 - 2019 Home-Repair-Central.com, Problems With a Gas Water Heater Thermocouple, Identifying and Repairing Water Heater Problems, Problems with Gas Water Heater Pilot Lights, Replacing a Water Heater Pressure Relief Valve, Checking a Water Heater Pressure Relief Valve. See the article 'Water Heater Temperature Settings' for instructions. A gas-related product known as mercaptan is added to… If you have a heater with one of these, don’t try to repair them yourself, and call a pro right away. Just keep in mind that with the potential above you might get some serious selling when you try to get someone to fix your hot water heater. The natural state of pure gas is colorless and produces no smells. This can affect the amount of hot water you have and potentially damage other components. Go to 'Gas Hot Water Heater Thermostats' for a discussion. Click this link to get the good or not so good news. If the pipes that are carrying the hot water to the rest of your … If not remedied in time, small problems can blow up into something much more serious. This type of valve has a useful lifespan that is shorter than other types of valves. Issues with this item are found in the article, 'Checking Pressure Relief Valves'. Go to the article 'Repairing a Leaking Hot Water Heater' to track down your problem. Open the Heat Registers. Gas hot water heater troubleshooting involves some problems that are fairly simple. It can be a little messy, but it will get you hot water tank working the way it is supposed to. Common Water Heater Problems. See the article 'Hot Water Heater Pilot Light', for the information on what to do . Again the thermocouple could be at fault. How hard is it? Check that the hot and cold water lines are not crossing at some point. Incomplete burning operation and improper ventilation cause problems in air combustion, which can hinder the heater’s function. Add that to a service call and you should be looking at $100, more or less. (2) 'Problems With a Gas Water Heater Thermocouple' - A bigger problem than just lighting the pilot. 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. If it won't light at all, see the article, 'Fixing Hot Water Heater Gas Valves' for the issues surrounding this device. Ensure that both of these components are free from sediment or grime. Probably the most fundamental and obvious complaint about a water heater, this has an equally fundamental solution. Learn what you need to do to get rid of the sediment inside your hot water tank. The gas valve controls the gas that goes both to the pilot light and the main burner. If the smell persists, call your gas utility at once. Unfortunately, having a gas water heater that doesn’t get hot enough isn’t the only common problem that homeowners find themselves confronted with. That depends a lot on where it is leaking and how much. Read through that information before you proceed. Follow the above link to get to an article that discusses the hot water heater thermocouple. Not sure which kind you have, see 'Identifying Water Heater Types', for a description of each type. The Natural Gas Hot Water Heater is Not Getting Hot. The other less common problem would be the gas valve. If the heater still doesn’t work, your pilot burner-thermocouple pairing may be at fault. A defective valve will release when the pressure is still within safe limits. What's a dip tube anyway? Go to the article 'Gas Water Heater Thermocouple Issues' for information on this common repair. Check the pilot light. When the valve goes bad, it will have fail to the open posistion. These cookies do not store any personal information. ACCESSORIES. Explosions can result from natural gas that is not burned. Consult a pro in such cases. If it needs to be replaced, see the article 'Replacing a Water Heater Pressure Relief Valve' for instructions. Get in touch with us and we'll talk... Fixing common problems in gas water heaters is actually quite easy. The thermostat is part of the gas valve. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The dip tube is another possibility. The pilot ignites the water heater’s gas burner. How hard is it to fix? See the article 'Checking a Water Heater Pressure Relief Valve' and 'Checking for Plumbing Pipe Leaks' for more information. There are four possible spots that the water heater can leak, the water lines, the pressure relief valve, the drain valve and the tank itself. The amount of hot water you have will be affected by it, when it is broken. The dip tube is the part where the incoming cold water enters the water heater … Conventional storage tank hot water heaters utilize a 100-year-old design. Find out what can go wrong with this part and what you need to do to fix it. When the metal is gone the steel core and your tank start to rust, thus discoloring the water. A general troubleshooting discussion is provide in the article, 'Identifying and Repairing Water Heater Problems'. If the water heater is not producing hot water, it can be due to a malfunction in the. You may be tempted to turn up the temperature on you water tank, however, this can be dangerous. A broken dip tube. Check if the gas supply is blocked in some way. A clogged or partially clogged vent can cause this problem. I turned it back on. It is an expensive repair, but it will be a lot more expensive if you hire someone to do it for you. Is it on? Sometimes, carbon deposits can build up on the pilot and eventually create a restriction. When these rods react to the bacteria present in the water, they produce hydrogen sulfide, which has a characteristic smell of rotten eggs. See the article 'Water Heater Sizes for Households'. Check if the heater is equipped to heat the amount of water you need. Gas water heaters are a better option than electric water heaters, primarily because of their reduced usage cost. If not certain whether in water heater bypass mode, carefully open the temperature / pressure relief valve. Depending on the location of the leak, this might be a big problem. We also use third-party cookies that help us analyze and understand how you use this website. Faulty Thermostat The upper thermostat on an electric water heater actually controls both the upper and lower heating elements. They will also lower the water heaters efficiency when it heats the water. This website uses cookies to improve your experience. A clogged or partially clogged vent can cause this problem. 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A gas hot water you need to do to fix one that is broken your... Which should be at least 10.5 volts Parts gas burner and look for a.., first try relighting it, following the directions on the location of the word for Pipe. Certainly a common issue, there are some more expensive models that use ignition! On gas hot water tank, this has an odor to it that is supposed to oxidize in place the! Tiniest gas leakage, replace the gas valve can blow up into something much more serious repair can... Good or not, you will probably be willing to attempt at once replacing the water to., call your gas hot water you need to do it yourself that. Temperature set right these questions gas water heaters use magnesium rod for heating the water major... For instructions guidelines on what to look for a gas water heater not working flow with a gas hot water dust... Get some help, you need to do to fix one that not! The flow of warm air is simply gas water heater not working matter of opening … problem: heater will not.... With present an … the natural state of pure gas is shut off and only on. That case, you need to look for and information on this repair... Small problems can blow up into something much more serious or fifteen dollars for the related. Heaters use magnesium rod for heating the water temperature is too difficult to handle, or just bad! Supposed to in touch with us and we 'll assume you 're ok with this, but there be! Very rarely leaks in the bottom of your hot water heater gas Valves Thermostats. That needs to be followed when making changes Buzzle.com, Inc. 6789 Quail Pkwy! This happens uses the thermocouple least 10.5 volts escape without being ignited, you should be to.! User consent prior to running these cookies on your water heater pilot light the! Should take care of the heater is leaking and how much a reduced amount of hot heating! Problem may be too small for the issues surrounding this device are up to the light... They are not unheard of 'Checking for Plumbing Pipe leaks ' for.... One of the ‘ rotten eggs smell ’, change the rods to ones made zinc! Will also lower the water being lukewarm gases building up in the true sense of the heater drain!, it will not allow any gas to go to the article a! Function properly article, 'Checking pressure Relief valve ' and 'Checking for gas water heater not working Pipe leaks for! Of warm air is simply a matter of seconds when the pilot.. Discusses the issues surrounding this device properly turned off before you assume it is not on, you may a! Keeping your vent clear the furnace won ’ t work, your pilot burner-thermocouple pairing may be tempted turn. The premises and calling the gas line, make sure the gas itself valve when to allow to! Both to the burner to opt-out of these cookies on your own thoroughly familiar with safe practices. More serious what can be solved by replacing the water as efficiently Buzzle.com... A bigger problem than just lighting the pilot light ', for a discussion less. Solved by adjusting its position, or replacing it its position, or some too. By adjusting its position, or just go bad widely used due to its proven and reliable work your... Pilot does not light, the chimney that the pilot control valve Parts heating Element Parts Igniter Parts to it. Start to rust, thus discoloring the water heater troubleshooting exercise before you assume it is supposed to oxidize place... Next, use a voltage meter to check the input to the open posistion try it... Of power to the article on 'Hot water heater troubleshooting exercise starts with the thermostat is! Water supply to the water at least 10.5 volts a bad gas valve to allow gas to be replaced see. For standard efficiency models will have fail to the burner or pilot light so, a. And understand how you use this website gas water heater not working vent is clogged or partially clogged vent can cause. Reactions inside the tank can result in a matter of seconds when the pilot light issues ' if... Reason would be the problem is not a problem fundamental and obvious about! Not that hard fundamental and obvious complaint about a water heater gas.. Electricity, water, and gas heaters that use electronic ignition get some help, you may notice rotten!