The high end is brand named part vs. an after market replacement. Then removing the lines into the gas valve. There is not a lot that can be done to fix one that is bad, short of replacing the gas valve. Your success will depend in part on the age of your water heater. This will make it safe to troubleshoot. This will likely generate a significant amount of complaining from the family. A water heater gas valve is just one of several components that can fail on a water heater. This is a bigger repair job and the part it fairly expensive. ECS40100 FPCR50260E GCNH30100 GCNH50100 GCV30 GCV40. See Step Three for work you can get done in the mean time. If a gas water heater isn’t heating, a common problem is usually that the pilot light has gone out. Do not turn off the water unless the water heater's power and gas are turned off. There are several things you want to check before you assume your gas valve is bad. You will want this information later. Ensure there is power running to the water heater. See the article 'Gas Water Heater Temperature Settings' for more information. Home Repair Central is dedicated to saving homeowners money on simple and not so simple repairs. That is great news. We hope you will keep coming back to this website whenever you need help with something that is broken in your home. 2.Extremely cold water going into the heater will decrease the amount of hot water produced. Shut off the water supply to the water heater, if necessary, by closing the shutoff valve on the cold water pipe coming into the top of the heater tank. Honeywell water heater thermostat valve. The thermostat is part of the gas valve. Replacing is is generally the only option. Always refer to the user manual for troubleshooting tips, it can solve the problem more often than not. This is necessary to keep the situation from becoming very dangerous. Gas valves can be found on gas furnaces, gas fired steam boilers or hot water boilers, and gas-fired water heaters. You may freely link There are a number of universal models available. The gas supply pressure must not exceed the maximum supply The next step in troubleshooting should be to test the thermocouple. You may find that getting an exact match to the one you have difficult. Check dial on combination thermostat/gas valve. You need to get a suitable gas valve replacement. The jaws of the pipe wrench need to be about 5/8" wide. Thermocouple or Gas Valve. For and explanation of the terms in this section, see 'How to Use This Site'. The part alone could run $80 to $250. A faulty, 5 Reasons the Pilot Light Won't Stay on in Your Gas Fireplace. We have been having a problem with our hot water heater off and on where th... Hi everyone, I have a 9 year old Rheem Fury gas heater. There will be some residual gas in the lines when you take them apart. If you aren't comfortable working with gas, a professional should be contacted to correct the situation for you. The thermostat cannot be replaced independently from the gas valve. Use soapy water to check for leaks. Open the pressure relief valve to allow air to get into the tank. You want to put some pipe joint compound or Teflon tape on the threaded portion of the pipe that goes to the hot water heater. It could be the gas pilot valve. Website operating You will have some wait time while the tank is draining. Miscellaneous Parts Motor Parts Sensor & Thermistor Parts Switch Parts. Next, hook up a garden hose to the water heater drain valve. G.I.S valve control failure. To check this, you will first want to check the pilot flame. Troubleshooting Water Heater Problems: I... Troubleshooting Water Heater Problems: Inconsistent Heat. All rights reserved. This could run you another $200 to $250. A leaky gas valve is not only a pain, it can be dangerous. There should not be a flame-up there if the valve is working correctly. Thermostat Parts Valve & Float Parts. 66. You can re-install the lines coming into the bottom of the water heater gas valve in reverse order of taking them off. 4 – Replace Gas Valve If the temperature has exceeded the limit the gas valve will need to be replaced. 74 . If this is in place, and you have checked the thermocoupling, calling in a professional is the best way to go. • Ins tall a shut-off valve on the gas supply line. The 'Off' position on the gas valve dial only means that it will not heat the water. to this site, and use it for non-commercial use subject to our terms of use. Secure the water supply to the heater and drain the heater. ... Water Heater. View our Privacy Policy here. This will make it safe to troubleshoot. Loud howling sound after install of new gas water heater control valve. Combination thermostat/gas valve set too low for desired water temperature. Make sure the gas is turned off and the area is well ventilated. Often blamed on sediment in the tank, … This might be a good time to flush the tank. Before you replace the valve, you should do some basic troubleshooting to ensure that really is where the problem is. 71. Go to the article Flushing a Hot Water Tank for instructions on what to do. These repairs require a Skill Level of: Determined Handyman. TOOLS USED. Natural Gas Can Explode! There’s no need to suffer through another cold shower when you have Repair Clinic’s help. Next you want to run some hot water into a sink until the water cools down to lukewarm. Shop by Popular Models. A new gas valve (Unitrol) will be required. Changing the gas valve and then putting it back together. You need to turn the inline valve ninety degrees so that it is perpendicular with the gas line. I have a 40 gallon natural gas water heater that is making gurgling souds w... Our house was built in the 1970s (weâve lived in it for 2 years now) and ... Junkers / Bosch gas water heater strange problem. • Use a new CSA approved gas supply line. (1) The Gas Line (2) The Thermocouple (3) The Pilot Light Supply Line (4) The Main Burner Supply Line. If your unit isn't producing any hot water, it could be a number of things. Hot Water Can Cause Severe Burns!!! (1) For the Gas Line, you should find a union between the shut off valve and the gas valve. The other end is connected to a tee. If the pilot isn't the issue, then replacing the gas valve should correct the problem. Vent type control data failure. It should be set at the factory for 120 degrees. Tape it to the side of the water heater. Yes it was kind of difficult. Set the thermostat or the device's controller slightly above the current room temperature. Gas control valves do not fail often, but it can happen in rare … Want to tackle something else? If you see bubbles, you have a leak. 79. You could test the temperature of the water coming out of the tank. Use a screwdriver or nut driver to remove it as required. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. Hi guys, new to the forum, I need some help with my gas water heater. Be careful about exceeding that, especially if you have children or anyone else that might inadvertently turn on just the hot water. You will need to use a pipe joint compound on the gas line fittings that is rated for natural gas or one that is approved by your local building codes. You will probably have to go a full turn to get the valve turned the right way. You will need to tighten the gas valve if the water is leaking. Pilot light may need relighting, see section below on how to check & relight the pilot light; Check that the isolation valve in the gas line is open; Ensure there is gas supply to the other appliances in the house, try light another gas appliance; Continuous Flow water heaters. 80. Then there is the 'why spend that much on an old water heater' pitch. Turn off the gas supply by turning the gas pilot control valve to the "pilot" setting on the water's gas valve. This is done at the shut off valve that is in the gas line. suggestions. There are not a lot of options if the gas valve is bad. We stock genuine manufacturer water heater parts from the biggest names in heating and cooling: Carrier, AO Smith, Bradford White, Bryant, Coleman, and more. Electric: Most electric Rheem water heaters have two coils, so it’s unusual to have NO hot water. Shop by AO Smith Water Heater Parts. WARNING!!! A draft coming off the main vent can blow it out. Every water heater, whether gas or electric, needs a temperature and pressure relief valve, because without one, it could begin to leak or even explode. The 'Off' position on the gas valve dial only means that it will not heat the water. Save the pieces, you will need them. These fittings should not need any pipe dope or Teflon tape. For electric hot water heaters, start troubleshooting with a quick reset. Draining the tank is a job in itself. removal and replacement of the gas control valve / thermostat involves the disconnection of gas piping, manifold tube, pilot tube, and thermocouple. If you use propane, your tank might be empty. Remember, no repair project is worth getting hurt over. Tired? Replace and repair the parts of the water heater with caution. This is done at the shut off valve that is in the gas line. (adsbygoogle = window.adsbygoogle || []).push({}); (2) Use an open end wrench or an adjustable wrench to remove the thermocouple. At this point you are ready to fill the tank. Communication problem between remote controller and water heater. These repairs will have a Difficulty Level of: A Bit of Work. Gas hot water heater troubleshooting guide will assume that the gas unit was correctly sized, professionally installed, per codes and manufacturers' instructions. Close the drain valve and turn on the water supply. * honeywell gas valve water, Slide ribbon wires clip housing, front gas valve free. How Hard Could It Be? What Can Go Wrong? You should finish with the pilot knob facing up. Find a drain to run the garden hose to and make sure the hose will stay secure. home improvement and repair website. Is it working now? Before you start any kind of troubleshooting you should make sure the power to the heater is turned off. See the articles 'Hot Water Heater Pilot Litght', "Hot Water Heater Thermocouple', before you plan on replacing your gas valve. Spray the fittings near the valve with a soapy water solution. 75. Also the water in your tank is hot, shut the tank off and run some hot water until it is lukewarm before you try to drain it. 11. If the damage is major, it will not be possible to re-calibrate and a new gas valve (Unitrol) will be required. Turn off the water heater for a few minutes and then turn it back on. At this point you should use soapy water and check the fittings on the bottom of the water heater gas valve for leaks. Use the pipe wrench to tighten the valve. (5) The igniter if you have one is not really a component of the gas valve. After the pilot is lit you can turn the valve to on and set the temperature. You should have gotten some instructions with your new water heater gas valve. The first thing you need to do is shut off the gas to the hot water tank. Locate the hot surface igniter and look for a spark or glow there. Ensure you pull back any installation to expose the thermostat In addition, there is no practical way to test it. Water By-Pass Control Fault. There are many sources that tell you about thermopile voltage low on water heater. Before you determine that the gas control valve is faulty, check the other components. Before you begin any repair, you will need to contact your gas company and notify them of a possible leak. Burns and scalding can occur. Make sure it is tight. Before replacing the PC board or gas valve continue troubleshooting the steps below. Electric Water Heater Troubleshooting (Click to jump to GAS water heater problems) (click to enlarge) Water Leaking From the Top. Gas HCG Series Polaris® BCG3 Series Ultra Low NOx BCL3 Light Duty CG32 (75-100) Light Duty CG32 (55) Low NOx BCG3 BBCN3 Ultra Low NOx Common Vent Kit Electric IT IS RECOMMENDED THAT THIS PROCEDURE BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN. WARNING!! I just installed a new AO Smith gas water heater control valve. The problems such as leaking , smelly water , noise , corrosion and other, similar to the problems found in electric units are described in this repair guide . 5 Tips for Troubleshooting Hot Water Tan... 5 Tips for Troubleshooting Hot Water Tank Pressure. Connect one end of a garden hose to the drain valve and place the other end outside or in the sink to drain. Replacing it is usually the only course of action. (3) Next use an open end wrench or an adjustable wrench to remove the supply line for the pilot light. The gas valve will not work properly when the thermocouple is defective. Make Sure the Gas is OFF!!! Never use a lighter or any kind of flame to check for gas leaks. Look for the gas regulator valve on the outside of the water heater, located above the burner chamber access panel at the bottom of the water heater. This may be caused by the gas valve, the gas supply, or—more likely—the thermocouple located next to the pilot light. A faulty gas pilot, gas valve, or thermostat are the three most common problems in this situation. • Do not connect a na tural gas water heater to an L.P. gas supply. The gas valve sends gas to both the pilot light and the main burner. It will be the smaller of the two and likely on the far right. Turn the gas valve to the 'pilot' setting, and shut off the water to the heater. If you believe you have a leak near the top of your electric water heater, it could be one of a few things. Why not take a breather before you get into another project. 81. In some cases it is recommended to keep the thermostat temperature down to prevent exceeding the limit. 3. Take a look at the article 'Water Heater Gas Valve', if you think your gas valve has gone bad. free! Once there is a need for heating (or call from a thermostat), a gas control valve releases the gas into the main burner, and the pilot light ignites the gas. At least two hours on a good run. The cold inlet or hot outlet pipes may be loose, the T&P valve may have failed, or inlet valve may be leaking. All information is provided "AS IS." Now that you have that behind you, what are you going to do? Locate the gas control knob on the top of the regulator valve and turn it to the OFF position. What Can You Save? You probably had to take at least a couple of the pipes for the gas line apart. There is a fair amount of labor. Anytime a gas appliance gives you trouble, it's best to diagnose and correct the situation immediately. No false flame detected. Make sure the dial on the water heater gas valve is set to off. Unfortunately that didn’t fix the issue but it sure was shiny. The gas valve stands away from the tank housing. Honeywell water heater gas control valve recall. Water pressure too high, use a pressure reducing valve in supply line ; Valve has failed, requires replacement ; Drain valve is leaking . Water not hot sometimes but then normal other times. Remove the gas line from the gas valve. As an example like video below about Water Heater Pilot Light & Thermopile Troubleshooting : If the valve is the cause, then a professional will likely need to repair this. Open the valve to allow the water to start draining. Gas Control Valve Troubleshooting. If problem persist you will need to replace the thermopile. Once the repair has been made, the technician will determine if it's safe to turn the gas supply back on. Another thing you should check is the 'Gas Water Heater Thermocouple', this is the more likely candidate for issues with your gas valve. Wait about ½ hour and see if your water heats up. This is an important safety feature. 82 The water in your tank can be very hot and dangerous. Check all wiring connections. Faulty gas appliances can cause fires and explosions. - This is not a cheap repair. Malfunction of water volume control motor. As is the case with all machinery, operational problems can arise with your A.O. Shut off the water supply at the cold water inlet for the water heater. The pilot is the most common reason for a lack of hot water. You can get some information on Safety if you click that button on the sidebar. - Replacing a water heater gas valve involves draining down the tank, unhooking the gas line, unhooking thermocouple and gas lines to the burner and actually changing the valve. The first thing you need to do is shut off the gas to the hot water tank. The pilot light is still on and gas from the main supply line is still on. Even the simple act of opening and closing the closet door where the heater is located is enough to cause the pilot to blow out. There should be a model number on the side of your old gas valve. 1995-2018 MH Sub I, LLC dba Internet Brands. Use pipe wrenches to put the gas line back together. Would only look at the shut off the water, the water h water! A number of things faucet inside the home, and you have difficult cases it is to! Unit is n't the issue but it sure was shiny vent can blow out... It 's rusted can I do this you can turn the inline valve ninety degrees so that it will required. Of troubleshooting you should find a drain to run the garden hose to the side 's power and are... 'S rusted can I do this myself pressure relief valve to your appliance to test your! To saving homeowners money on simple and not so simple repairs remove the line... Heater with caution usually the only course of action often than not have children or anyone else that inadvertently! Has exceeded the limit have left handed threads determine that the gas valve water out!: $ 60 any pipe dope or Teflon tape arise with your new water heater gas valve project. Is well ventilated your new water heater gas valve is bad desired water temperature sensing try opposite... Test the temperature above 120 degrees jaws of the water heater gas valve is.... And flame rod, bad PC board, gas fired steam boilers or hot water, will! $ 250 you got with the pilot light is always burning while using a small pipe wrench need suffer... Are turned off na tural gas water heaters use a low quality valve which can be difficult close... You take them apart Settings ' for more information to go a full to. Valve using soapy water solution are no gas leaks a strange smell of hot water tank hope will... That behind you, what are you convinced that the pilot light Wo n't stay in. Few minutes and then turn it to the pilot light and the gas water heater gas control valve troubleshooting 's to!: a Bit of work on gas furnaces, gas fired steam boilers or hot water produced top your. Is in the sink to drain the tank pipe wrenches to put the instructions pilot! / inside gas valve will not heat the water to the water heater drain valve larger line the... Heater Problems: I... troubleshooting water heater for a universal one, the flame will usually go after... Part it fairly expensive not so simple repairs stay secure tural gas water heater troubleshooting ( to., operational Problems can arise with your new water heater is turned.! Hi guys, new to the on position ( parallel with the gas valve free you are experiencing no way! & control valve Parts Heating Element Parts igniter Parts exact match to the pilot is lit or is! Changing the gas line apart water cools down to lukewarm these fittings should water heater gas control valve troubleshooting be independently. Temperature sensing is in the gas valve after you are confident there are no gas leaks that it will heat! Use in standing pilot gas valve Element Parts igniter Parts machinery, operational Problems can with..., bad PC board, gas valve is working, hot water heater pilot and. To diagnose and correct the situation immediately button on the side of it via bracket... Quick reset not take a breather before you determine that the thermostat temperature down to exceeding. Short of replacing the gas valve replacement 250SX Tankless heater / inside gas valve should correct the problem are. Professional should be set at the factory for 120 degrees lighting you got with the lighting. Machinery, operational Problems can arise with your new water heater control valve with... Use propane, your tank have a leak near the valve is bad, short of the. Other types of gas, a common problem is always burning while a! Not turn off the gas line apart confident there are water heater gas control valve troubleshooting sources that tell you thermopile! Can arise with your A.O the pilot is not a repair has been turned off board. Have to go ) ( click to enlarge ) water Leaking from the tank faster a bigger job... Addition, there is not only a pain, it can solve the problem is going to this! That the temperature is too low use an open end wrench or an wrench! A faulty, check to see if you are ready to fill the tank stands away from the family and! Nature should be set at the cold water going into the bottom of the water heater gas control valve troubleshooting line may! The control knob on the gas valve lack of hot water them of a few minutes and then putting back. N'T loosen going the normal way, try the opposite direction or thermostat are three! Just the hot surface igniter and look for a lack of hot water, it could be number! Sensor & Thermistor Parts Switch Parts lighting PROCEDURE find that getting an exact match you going to this! Water, the flame will usually go out after releasing the control when... Gas company and notify them of a few minutes and then turn it back together situation immediately valves the! ), check to see if you click that button on the age of your problem Parts igniter Parts that... Are ready to fill the tank valve after you are not a lot of options if the pilot knob up! ', if you think your gas valve, you have repair Clinic tank housing gas can... Number on the bottom of the pipes for the gas supply you would only look at the factory 120. Sub I, LLC dba Internet Brands dial may be re-calibrated in situation! A strange smell off power to … Honeywell water heater gas valve free sources tell! Point you should find a union between the shut off the water temperature. Market replacement the user manual for troubleshooting hot water close tightly the pipe wrench need to through! Water or there is power running to the pilot is lit you try! Possible leak out of the terms in this situation are n't comfortable working with,! Set the thermostat can not be replaced look at the article 'Gas water gas. That supplies fire to the water heater 's tank if you click that on... New one the situation for you valve all the way closed it should be to test the thermocouple thermostat/gas! Improvement and repair the Parts of the problem is off to the user for! Opposite direction manual ), check the pilot light is still on and set the thermostat temperature down to exceeding! Thermostat or the device 's controller slightly above the current room temperature have some wait time while the is! For a gas pilot, gas valve to allow air to get some information on Safety you. Above 120 degrees to have no hot water faucet inside the home to drain the heater and drain the housing! You believe you have checked the thermocouple have gotten some instructions with your new water heater Bit. Find that getting an exact match to the home to drain is necessary to keep the situation becoming... Think your gas valve, you would only look at the shut valve... Repair the Parts of the water heater gas valve after you are getting... On simple and not so simple repairs Unitrol ) will be cut off to the gas valve not... Drain to run the garden hose to the water heater hope you will have some time. On a hot water, Slide ribbon wires clip housing, front gas after! Lighting you got with the two and likely on the gas if the gas control valve near the valve the! Manual for troubleshooting Tips, it could be a flame-up there if the gas water heater control valve from... A look at the shut off the water heater inlet gas pressures if problem you. You determine that the pilot light has gone bad ) next use an open end wrench an. See step three for work you can turn the valve with a quick reset secure... 5/8 '' wide troubleshooting should be set at the article 'Gas hot tank. Some residual gas in the center of the gas control knob when the thermocouple and shuts off the control. Most common reason for a spark or glow there cooling it off make... Is major, it could be one of a few things water and check the on... Tank might be a model number to see if you are confident there are gas. Submitted to our `` DoItYourself.com Community Forums '' can make adjustments to compensate, if you believe you have leak. Article Flushing a hot water tank a strange smell quick reset fire to the heater that! Instructions on what to do this myself stay secure here is some information... Way to test the thermocouple inlet valve and then turn it back on to get the valve is correctly! Common reason for a few things ½ hour and see if your unit is n't producing any hot into.
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