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My gas heater keeps shutting off

My gas heater keeps shutting off

However, if your gas water heater keeps shutting off for no reason, this is precisely the position you may find yourself in! Here we look at what you can do to get to the bottom of this issue and make your hot water supply more reliable.

Why does my gas heater keep shutting off?

If you can light your pilot lightbut it keeps going out, the first item to check is the thermocouple. When the water heater is first lit, a valve releases gas into the burner, and the pilot light ignites that gas. 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 keeps functioning.

If your gas water heater keeps shutting offthe thermocouple could be dirty, bent or damaged. The thermocouple is usually easily visible next to the pilot light. Inspect the thermocouple to determine if it is dirty or damaged in some way. If it is dirty, turn off the gas to allow the thermocouple to cool.

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You can then clean the thermocouple by gently sanding it with fine sandpaper. The thermocouple may become bent or damaged due to an impact or just old age. You can try to rectify a bent thermocouple by gently bending it closer to the pilot light, but if the thermocouple is damaged or broken, you might need to call your local plumber to replace it. Dirt or soot can collect in the pilot light tube and can cause a weak flame or prevent the pilot light from lighting altogether.

You can gently clean the pilot tube with a needle to remove any blockages when the pilot tube has cooled, but if issues persist, call your professional plumber. If the supply of gas to the pilot light or burners is interrupted due to the gas valve or its inner elements being damaged, your gas water heater will shut off.

Repair or replacement of the gas valve is best done by your plumber. If at any time you notice the smell of natural gas coming from your water heater, leave your home, turn off your gas supply and call your gas company for emergency assistance.

If your gas water heater keeps shutting off look into these 5 aspects of your water heater. Call your local plumber, Magnificent Plumbing for expert advice to get your gas water heater back to consistent function.

Your email address will not be published. Dirty Thermocouple If you can light your pilot lightbut it keeps going out, the first item to check is the thermocouple. Dirty Pilot Tube Dirt or soot can collect in the pilot light tube and can cause a weak flame or prevent the pilot light from lighting altogether.

A Bad Gas Valve If the supply of gas to the pilot light or burners is interrupted due to the gas valve or its inner elements being damaged, your gas water heater will shut off. Share 3. Pin 1. Leave a Reply Cancel reply Your email address will not be published.

Call I'm new to using gas heaters. This is my first winter in this house and last night the gas heater kept going out. I would get the pilot light on, turn up the heat and it would come right on. It would stay on for 3 or 4 minutes and then it would shut completely off - pilot light and all. I tried this repeatedly last night but it would not stay on. Any suggestions of anything I can try? Hopefully a quick inexpensive fix?

I believe it's an Empire Comfort System. I don't smell any gas. I know how to light the pilot light. There is another gas heater in the house made exactly like this one and I have lit the pilot light on it and it is working fine. There is also a gas stove and a gas hot water tank - they are both working well. I do not smell any gas in the house.

As previously mentioned, the pilot light will come on. The heat will even kick on.

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Then a few minutes later, the heat and the pilot light both go out instantly with no advance warning. If it doesn't work, that's your problem, not theirs. You read all the instructions on lighting it right? And you don't smell any gas do you? BTW, do you have any other gas appliances - stove, water heater, dryer?

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Do they work? It's possible the flame in your heater is getting blown out by a draft Since you have a standing pilot furnace I assume that it is an older model. Older model units have a device called the fan limit switch. The fan limit switch is actually two switches in one body, the fan switch and a limit switch. This device is placed so that it senses the temperature in the heat exchanger.

The normal sequence of the furnace is for a call for heat to come from the thermostat. The gas valve is energized allowing gas to flow to the burners.

Why won't the pilot light stay lit on my Dyna-Glo RA18LPDG? Make it work!

The gas is ignited by the pilot and the heat exchanger begins to warm up.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. It only takes a minute to sign up. After I relight pilot, turn switch to on, the flame lights and begins to heat, then after about 30 seconds, there is an audible click from the valve body and the flame goes out including pilot light.

my gas heater keeps shutting off

Bad thermocouple - it is supposed to sense the presence of a flame, and turn off the gas if it is on, but nothing is getting hot. Do you mean the main burners light when you say "flame lights and begins to heat"? If so, check these possible issues:. Thermocouple is too hot. Is the pilot flame nice and blue, or is it orange in colour?

An orange flame may not be hot enough for the thermocouple to work properly. Does the pilot flame decrease in size when the main burners come on?

my gas heater keeps shutting off

If so, check for low gas pressure. Also, there may be a pilot adjustment valve on your gas valve.

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There could a fault in the gas valve's main burner solenoid, causing it to draw excessive power and starving the pilot flame solenoid. If so, replace the entire valve. Gas valve are allowed 30seconds to "fall out". In English, that means a gas valve is slowed to continue to release gas for up to 30 seconds after the pilot fails.

Sounds odd, but this is how they actually work. From grabbing the manual Here.

my gas heater keeps shutting off

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Furnace Keeps Turning On and Off Repeatedly? The Guide to Troubleshooting a Short-Cycling Furnace.

Home Questions Tags Users Unanswered. Why is my gas heater shutting down the flame and pilot?If you find yourself with a water heater that keeps shutting off - we may be able to help. Now, it's important that a professional plumber address these problems.

In the Atlanta, Ga area you will find these professionals at Atlantis Plumbing. We are available 24 hours a day, 7 days a week.

But as a responsible homeowner - you should have an idea of of the details of each of these possible causes for your hot water heater problems. The gas water heaters built today have air inlet screens. If this screen gets clogged up it can't function as it's supposed to. Which means that it won't let in enough air which is needed to keep the gas burners on.

As can happen with many appliances, they can get dirty and therefore clogged. Things like dust, pet hair, lint, dirt, etc. The thermopile component of your water heater is most often a metal rod located next to the pilot burner. It's purpose is to trigger the gas controls to turn on. Basically, the pilot light is on, the thermopile is heated by this flame and generates electrical energy for the purpose of powering the electronic components inside the gas controls.

Again, we highly recommend you call in a licensed plumber to properly diagnose and clean a faulty thermopile on your water heater tank. The purpose of the thermocouple apparatus is to act as a safety device.

It turns the supply of gas off when the pilot light dies out. If the thermocouple in your water heater malfunctions in some way, the pilot light simply won't stay on. We recommend again that you hire a qualified plumber to diagnose and repair any problems you may have with your water heater. The gas valve in your hot water heater is the device that distributes gas to the water heater unit.

This gas lights the pilot light and the gas burners which of course eventually heat the water in the tank. So naturally, if the valve has broken or gotten damaged in some way, you will have a problem with your hot water supply. Assessing this problem is best left to a proficient and competent plumber, like the ones at Atlantis Plumbing.

In some cases the leak may only occur when the tank is heating. As water is heated, the water volume expands and puts pressure on the seams of the tank. If you think or know that your water heater is leaking, call in experienced plumbers to fix the problem immediately.

Yes, high humidity and we do get that here in Georgia during the summer months can cause your water heater tank to sweat which in turn causes water to drip onto the thermocouple which in turn causes it to malfunction. A blocked vent in your hot water tank can cause the burner chamber to overheat. This then results in burning out the thermoresistor. A failed flammable vapor ignition resistant system can prevent combustion air from reaching the heater which could put out the pilot when the burner kicks on.

If you are having problems with your hot water heater, call us today at There are eight possible reasons why your gas water heater may be shutting off. A dirty or clogged air inlet screen A faulty thermopile A faulty thermocouple A gas valve that has gone bad Leaking tank High humidity Blocked exhaust vent Failing FVIR system Now, it's important that a professional plumber address these problems.

These are installed at the bottom of your water heater. So, if this component gets dirty for any reason, it won't be able to power up those components.Have you noticed that your furnace keeps shutting off almost as soon as it turns on, leaving you in the cold? Short-cycling — or having a furnace turn off and on quickly and more often than you have programmed — is a big problem for homeowners.

So what causes a furnace to keep shutting off? And how do you fix it? Here a few potential issues your furnace could be facing.

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A dirty and clogged furnace air filter will not only prevent proper air filtration, but it will actually obstruct airflow to the heat exchanger. If the heat exchanger gets too hot from lack of airflow, a safety mechanism will shut the furnace off to protect it. Luckily, you can fix a clogged filter with just a few simple steps.

First, turn off the furnace for safety. Then simply remove the filter, and find out whether it is a disposable or reusable filter. You can get them at your local hardware store. A reusable furnace filter is of higher-quality and will last longer, but it takes a little more effort to clean. Depending on what kind it is, either gently rinse with water, or gently vacuum up the dirt and debris. Tip : To keep your furnace running smoothly, and your air filtered, you should check your furnace filter every 30 days.

Closed vents would also do the trick. If the air filter is nice and clear, and still your furnace keeps shutting off, the next step is to check the thermostat. Next, make sure that your temperature is properly programmed — the furnace might be switching off because someone set the thermostat to a lower temperature, and never changed it back.

While you operate the furnace, get your helper to listen by the furnace. If the thermostat is working properly, when you adjust the temperature from low to high, there should be a sound.

In that case, you should call us to come do some further investigating. Thermostat placement is also important. Sometimes a furnace keeps shutting off because the flame sensor is corroded or caked in soot.

my gas heater keeps shutting off

This prevents your home from filling up with harmful gas fumes, which has dangerous consequences. So it shuts off the gas valve. This is a repair that needs to be handled by professionals. If you suspect your furnace keeps shutting off because of this, or another internal issue, book an appointment with us. Otherwise you run into problems. When your furnace is too big for the space, it heats your home quickly.If you have a gas water heater that keeps shutting off, you most likely have one of these 4 issues:.

Important note: If there is a strong smell of natural gas coming from your water heater, leave your home and call a professional immediately to avoid a natural gas explosion. Need a professional now? A dirty pilot burner is most likely your problem if you see a weak, flickering yellow flame coming from your pilot burner instead of a strong, blue flame that stands at a max of inch high. Have a professional clean your pilot burner and inspect it for signs of damage. Your thermopile is a straight metal rod that sits next to your pilot burner and activates the gas controls of your water heater.

Have a professional inspect your thermopile to decide whether it simply needs to be cleaned or if it needs to be completely replaced. Your gas valve is what delivers natural gas directly to your water heater. Gas from this valve lights your pilot light and eventually lights the gas burners that heat your water.

Have a professional replace your gas valve. Have a professional inspect and clean your dirty air inlet screen. Your email address will not be published. Request Service. Call Us. Text Us. Problem 2: A faulty thermopile Your thermopile is a straight metal rod that sits next to your pilot burner and activates the gas controls of your water heater. Problem 3: A bad gas valve Your gas valve is what delivers natural gas directly to your water heater. An AZ Plumber Explains.

Leave a Reply Cancel reply Your email address will not be published. Save my name, email, and website in this browser for the next time I comment.Gas wall heaters, whether vented or unvented, can supply enough heat to warm a small or medium-sized room, and they can operate with propane or natural gas.

When one isn't working properly, the cause is most often related to the igniter, which is usually a standing pilot light. It's rare for a heater to malfunction if the pilot is working properly, but it happens. That's usually related to a malfunction of the thermostat. Vented room heaters operate much like a hot water heater. They have a standing pilot, which is a pilot flame that's always burning, and when the room temperature falls low enough and the thermostat sends a signal to the gas valve to open, the pilot ignites the burner.

Some models may have an igniter that generates an electronic spark to ignite the burner. More expensive vented heaters bring outside air into the combustion chamber rather than depleting room air. Vent-free heaters burn more efficiently than vented ones, but they release carbon monoxide and water vapor and aren't recommended for residential use.

When you follow the proper procedure for lighting the pilot but it won't light, the first thing to check is the gas supply. If you have a propane tank, make sure there's gas in it. If there is, or your heater runs on natural gas, check the handle on the gas line; it should be parallel to the pipe. If you're sure there is gas, the pilot aperture may be blocked. If so, you should be able to clear it by reaching in the combustion chamber under the heater and poking a needle into the aperture.

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You can also disassemble the pilot tube and clear it with compressed air. 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.

Another cause of a weak pilot is a faulty thermocouple. It's a heat sensor placed next to the pilot flame that signals the gas valve to stay open when the flame is burning. If it's defective or too far away from the pilot, the pilot won't stay on. Sometimes reaching under the heater and pushing it closer to the pilot will solve the problem, but thermocouples wear out, and yours may need replacing.

If your heater isn't working but you can see a steady, blue pilot flame, the thermostat may not be signaling the heater to come on.

That could be because the temperature around the thermostat sensor isn't cold enough, and you can check by turning it up all the way. If that has no effect, one of the wires inside the thermostat box or in the heater may have separated. Failure to find a disconnected wire may indicate a faulty gas valve.

Replacing a gas valve is a potentially hazardous job and is one for a professional service technician. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since As a landscape builder, he helped establish two gardening companies.

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