How much does it cost to fix a pilot light? How to Get More Heat From Your Gas Fireplace, Why is Fire Blue (Is It Hotter)? To bypass the thermocouple: The thermocouple and thermopile are the two most common reasons why a gas fireplace wont stay lit. Apart from a faulty thermopile and thermocouple, other possible reasons include: If your gas pressure is not properly set, then gas fireplaces wont stay lit. Stupid thing wouldn't stay on! How does a thermocouple work? Writing is her life, and it's what she does best. If your pilot light is turning on but youre not getting gas, and youve checked everything else, consider replacing your thermocouple. Then detach the thermocouple from the burner and take it with you to the home center or hardware store to ensure you buy the right replacement. When the heat reaches the thermocouple's second junction, it creates an electrical voltage. Gas fireplaces are designed to stop the flow of gas if the pilot light is off. Find the thermocouple, which is located next to the pilot light and looks like a small straight pipe. So youve checked your pilot light and even reset it, but still, it wont stay lit. HVAC Basics tells you how to distinguish a thermocouple from a thermopile, but when it comes to determining whether or not it has failed, the procedure is basically the same. Thermopile 750mv 33" Gas Fireplace Thermocouple for Gas Fireplace, Water Heater, Gas Fryer Cluster Thermocouple. Remove the thermocouple access panel. This guide will tell you how to make sure your gas fireplace stays lit and when it may be better to call a professional to fix it. As mentioned before that this device will convert thermal energy to electrical energy. If the fireplace pilot light is on but won't start, make sure your gas valve is turned on and check the fuse or breakers. Next I jumped bot contacts of on/off switch and flame came right on! You can get a technician to help you make the necessary adjustments. Your thermopile voltage should be between 650mV and 800mV. Realistically, you have just disabled the thermocouple, but you can also reach in and unclip it from its holding bracket where it meets the pilot light. Gas Thermocouple,Gas Stove Universal Thermocouple Fireplace Replacement Kit Adaptors 22 $1289 Save 5% with coupon FREE delivery Tue, Feb 21 on $25 of items shipped by Amazon Or fastest delivery Fri, Feb 17 Universal Thermocouple Gas Stove Fireplace Replacement Kit Adaptors For Heating Device 8 $1269 Now, operate the control to turn on the main burner, and you should see the reading decrease by half. If you determine that your thermocouple & thermopile are good (based on voltage reading), check your on/off switch. Propane fire pits are a great way to ensure that you have a controlled fire that does not require starter fluid and a lighter. The thermocouple generates about 20-30 millivolts, enough electricity to keep the part of the gas valve that controls gas flow to the pilot assembly open. Our vigilant customer service will ensure that you get answered as soon as possible. Use the bending template in your owner's manual to bend it appropriately. Its easy to replace and a new one costs $5 to $10. Procedure for Replacing a Thermocouple Turn off the gas supply to the gas valve. It works rather like a fail-safe to keep unburned gas from accumulating and burning, exploding or causing another type of health risk. Rub until you remove all the soot on its surface. Daffodils and tulips make their early presence known, and of course, there is your Do You Need Chimney or Fireplace Cleaning or Inspection? The Thermocouple and the Thermopile carry out a similar function of converting heat to electricity, but the thermopile generates more electrical current compared to the thermocouple. Ah, fireplaces. Constant heat supply ensures that your patio heater pilot light is lit at all times. This occurs by virtue of a phenomenon known as the Seebeck effect, whereby an electric potential is generated between dissimilar metals when there's a large temperature difference, and the thermocouple probe and tubing are indeed made of different metals. If you havent already, use a wire brush to clean the openings. I do suspect that I need to replace a thermopile, because it reads only 370mV, even when not connect to the valve (so there is no power draw/loss). Your reading should be zero. You can test if your gas fireplace is working by using the switch located next to the burner. Leo has been a contractor since 2003, specializing in: roofing, siding, general contracting (GC) and residential remodeling. Remove your thermocouple from the heater using an 8mm wrench. Sometimes, that leads to issues that can make them frustratinglike going out when you want it to stay lit. 5.1k . available from Radio Crap or www.hosfelt.com. Once the wiring is free from the switch unit, bypass the wall switch by touching the two wires together. An avid craftsman and musician, Deziel began writing on home improvement topics in 2010. Turn off the fireplace gas valve and remove the front panel from the fireplace. It should also be touching the surrounding sensors such as the thermocouple and thermopile. While flame is still going, put meter lids on the connectors of thermopile. So, this guide will take you through how a thermocouple is cleaned. Do you have a fireplace in your house? When youre satisfied with the way the thermopile looks, go ahead and re-ignite the pilot light. A reading below 300 millivolts would require you to replace the thermopile. If you skip that step, you will be letting out some gas, which can be a fire hazard or health hazard. Push in the pilot button to manually send gas to the fireplace. Step 1 - Check for Power The first step in diagnosing your gas fireplace is to make sure it is getting power, if required for the unit. Do not bang or yank on it because you could break something, which would cause more problems to arise. When replacing a thermocouple or thermopile with the help of a professional, you can expect to pay between $150 and $250. This is important, particularly if the pilot light is out, because it prevents harmful gas from leaking into your home. And voila, magic without all the pixie dust! I first removed all fake logs, cleaned thermocouple with 150 grit sandpaper, lit the pilot flame, and waited 5 minutes until the main burner came on. Install & Owners Manuals. We and our partners use cookies to Store and/or access information on a device. Give the thermocouple about 15 minutes to heat up and then turn on the flame to make sure it all stays functioning. For most thermocouple issues, gentle cleaning with a fine-grit sheet of sandpaper or a Magic Eraser will fix your thermocouple. Place the new thermocouple in the same place your old one sat and close up the fireplace to conduct a test. If your fireplace doesnt light from connecting the wall switchs cables, follow the cables to the fireplace and test the connections along the way (starting with the thermopile leads and working your way up the chain). How much should a plumber charge to replace a thermocouple? A nut binds the wires and a bracket together. Though it will add some risk, not using a thermocouple will only raise the risk to the same level as a gas grill. Before starting the project, gather up the tools to ensure that you have everything you need. If pilot light is out, there is no power to keep the main burner valve open. Thats it! As an affiliate, we earn from qualifying purchases. Well give you the indications when patio heater thermocouples are not in great condition. But not all of these systems use a thermocouple. What new challenges concerning outdoor patio heaters are you facing? To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. The other ends of the wires are for attaching to the voltage reader. The thermocouple more or less acts like a sensor for gas flow and supplies gas to the pilot light through the gas valve. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. For remote controls, first check the batteries are new. Try turning on the fireplace as usual. Theres also a chance your thermocouple is working properly, but theres a blockage in the gas openings. Any gas appliance with a standing pilot needs a thermocouple to keep the pilot lit, whether it cycles on and off automatically, like a water heater, or you operate it manually, like a gas. Cleaning dirty burner ports from time to time could help solve the problem. The glass or screen of your Heat N Glo fireplace will get covered by soots or debris for several reasons. The gas fireplace issues that youre dealing with are usually fairly fixable. Just follow these steps to bypass the thermocouple: Firstly, push the tilt switch wire out of the way and use an 8mm wrench to remove the thermocouple. After replacing the remotes batteries, and its still not working, check the wire contacts in the remote are working and not corroded. A tiny flame known as a standing flame is used to heat a small probe called a thermocouple, or thermopile. If youre struggling with keeping your fireplace lit after 20 minutes to an hour, chances are that you have a sensor or a valve thats going bad. Manage Settings If youve cleaned your pilot light, and believe its not heating the thermocouple sufficiently, test your thermocouple by using a lighter to heat it up. This is basically the role of the pilot light. Can Firewood Bring Termites? In some cases, you may need to hold it longer to allow the fire to kick on. When you first attempt to start up the fire, you should always keep an eye on the pilot light. How do you clean a dirty thermocouple? Heat the thermocouple to a considerable level by placing it in the flame. Find your Heatilator product installation or owner's manual. What Are the Symptoms of Bad Thermocouples? After cleaning, should the pilot light still not stay lit, it is probably time to get new equipment. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. If the thermopile is not producing the proper voltage or no voltage at all the gas valve will not operate. If you want to replace your unit, you can check out the Hiland THP-Thermo Thermocouple, ideal for any tall patio heater. When all is said and done, buff the thermocouple using grit sandpaper or a small strip of emery cloth to remove soot and also polish the thermocouple. See more about Remodeling Calculator team here. Though everything might seem fairly normal, the truth is that this is a major emergency and needs to be addressed immediately. Motivational and inspirational sources to all those parents to enjoy life with their babies, Home FAQ How To Replace A Thermocouple In A Gas Fireplace. The Fix: Pilot Light to Gas Fireplace Wont Stay Lit So youve checked your pilot light and even reset it, but still, it wont stay lit. Some people cant pronounce it, much less figure out how to clean it. The terminals are labeled TP and TP/TH, as illustrated at My Gas Fireplace Repair. Gently rub it with your steel wool or the rougher side of your sponge. Cleaning the Thermopile Step 4. The tube is above the bracket. Kinda like a choke) If you were to take that plunger out of the valve body, remove the thermocouple, and cap the male threads on the t-body valve this entire process is eliminated. Turn Off the Gas Supply To The Fire Pit The first step in the process is the most vital. The thermocouple is located next to the electrode and when it is heated by the flame, it generates a small electric current that will hold the valve open. It is a safety mechanism that protects you and your family from carbon monoxide poisoning. Yes, Heres What To Do, Why is Fire Blue (& Is It Hotter)? Dual Fuel Ventless Gas Fireplace - 32,000 BTU, Remote Control, Auburn Cherry Finish The Duluth Forge Ventless Fireplace features The Duluth Forge Ventless Fireplace features our Furniture Quality fireplace mantel and our Dual Fuel, Vent Free Gas fireplace insert that provides you with heat and beauty. When cleaning, be careful not to get liquid inside the rest of the remote as it can damage its internal components. If it extends well above the thermocouple, its too strong. Make sure to report it as a gas leak, and explain why you believe it may be coming from your fireplace. Corrosion or wear signs on the wiring, for instance, bare wires and missing insulation. You will just have to see how the clips work. How To Disconnect Propane Tank from Fire Pit, How to get more heat from a propane fire pit. For further assistance, please call our Customer Care Center at 1.800.762.1142. Most cheap thermopiles will have weak power output (below 400mv) and will cause intermittent flame problems that will be hard to diagnose, because you will assume that your thermopile is GOOD, and problem is elsewhere. When thermopile is heated by pilot flame, it begins to make electricity. Here are the steps of doing it- Open the control panel of your gas valve. Do not light any matches or candles nearby. Take the thermocouple to the hardware store to purchase a new one. To quickly clean your thermopile, turn off the gas supply. It should be mostly blue, burn steadily and be large enough to engulf the thermocouple probe. To remove the patio heater thermocouple, unscrew the connection nuts, and copper leads, followed by the bracket nuts. I have a 11 year old Napoleon natural gas fireplace (GDS20N). Unfortunately, it can be a real bummer when your gas fireplace wont stay lit due to wear and tear of parts or improper maintenance. Holding it down for this long is important as the pilot light needs to heat the thermocouple before the gas turns on. They have copper casings that you can sport effortlessly. If the color of the flame turns yellow or red, its a sign of gas contamination. If you hire a contractor to do the work, it will cost $45 to $150. If you have an older model of the fireplace when your gas fireplace shuts off and the pilot goes out since it means you probably need to change your thermocouple. The thermocouple is a protection device that controls the gas supply to the gas-heated fireplace. A gas fireplace that keeps shutting off is annoying, but its not the end of the world. A 1/8 inch NPT plug, accessible for test gauge connection, must be installed immediately upstream of the gas supply . With a hand brush, rag, and vacuum cleaner, you can get your gas fireplace sparkling clean again. Turn the flame source on to conduct the actual test. Thermopiles cost $20 $60 for a quality brand name part. What do thermocouples do? Gas Fireplaces and Gas Log Sets: The rating plate is near the gas control valve, which is typically housed behind the lower or side control door. Note that gas fireplace installations cost around $2,300 to $10,000. If your unit is receiving no heat, this wont be so. sitting with your loved one in front of your fireplace. You can use your manufacturers guide to locate these. This is due to the varying electron densities of the different wires. A voltage is created when the junction senses a change in temperature. Stay away from cheap or no name brands, with 100s of fake 5-star reviews on Amazon. As you can see, the thermocouple is not that difficult to bypass. Touch the two leads of the meter. Valor Radiant Gas Fireplaces. This thermocouple provides a millivolt signal to the gas valve allowing the appliance to stay running. The electricity is generated when the metal is heated down a copper wire to the gas valve that operates the appliance. If you do hear clicking and your fireplace still wont light, there could be an issue with the gas intake. Read more. Under the bracket are copper lead wires which connect to the gas valve. An inspection alone can cost between $60 and $130. Replace if Cleaning Did Not Work Other Reasons for Gas Fireplace that Won't Stay Lit Not all gas fireplaces rely on electricity to function. Prepare the new thermocouple. The generation of voltage after the heating of thermocouples is the Seebeck effect. Below is a step by step video of troubleshooting my fireplace with no flame, going through thermocouple, thermopile, verifying that gas valve is good, high limit switch are good, and finding that it was all due to an old ON/OFF switch that costs $3.50 . Here's a quick guide on how to bypass it: If you are going to move the fire pit or you do not intend to use the gas lines again, disconnect them from the pit and consider having them completed removed by a professional. Youll need five-time constants for the temperature sensor to attain the full step change value, i.e., 100%. While the wall switches are low voltage and can be handled, if youre uncomfortable with handling wires, hire a professional to check your fireplace and wiring. If you overload your wood burner with logs, the lack of air circulation can also cause your fire to go out. $2.00 coupon applied at checkout Save $2.00 with coupon. The measuring point detects a temperature change leading to voltage creation. Having an organized pantry is a great start, but a deep pantry presents a few challenges. If you dont hear clicking, theres likely a problem with your pilot light. What makes a thermocouple go bad? According to John a Quadra-Fire fireplace service technician out of Norwood MA, who does 4-7 house service calls every day, he only had to replace 5 gas valves in more than 10 years. A. Thermocouple-Only: Found in: Most gas log sets with standard safety pilot knob control. Therefore, inspecting and testing your thermocouple should be part of your furnace maintenance. Typically used thermocouples are the base metal thermocouples. To test this, start by unscrewing and removing the outlet cover to expose the wires. If your logs wont catch fire, it may be that you have started too big. 5 Steps to Bypass a Thermocouple On a Fire Pit 1. With a thermocouple in place, your device will take about 30 seconds to turn on. Winter is approaching fast, so I did some research to help them out. Before you can access the thermocouple, you will need to take the access panel off. I fixed my gas fire pit. If your gas fireplace still isnt lighting, try using the manual switch next to the fireplaces burner instead. Its quite common for a security light to take several tries to light again after being left on inadvertently. Hey, Im Tyler. Follow Valor on social media for exclusive news, photography and more. As for an empty tank, get a replacement. Your pilot should be about 90 percent blue, with very little yellow. Thats 1 valve every 2 years! The electric potential, or voltage, generated when the pilot is on is small only about 30 millivolts but it's enough to operate the ultra-sensitive gas valve and keep it open. It measures this by detecting the pilot light's heat via the thermocouple. Use a can of compressed air to gently blow away any dust and dirt from the thermocouple. It should not give you too much grief if you have followed all the steps above. Try the following DIY fix at home for a fireplace that wont stay lit. Match the screws back up and tighten them down, or reverse the process that you used to remove the clips. Can thermocouples go bad? As you can see, this is why it is crucial to be in an open area away from anything that could cause a spark. {"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}. The pilot flame should touch the thermocouple at a specific level. Remove the valve using your pliers. Another common culprit is incorrect gas pressure. Lets say that you dont want to deal with a thermocouple, even though its an important safety valve in your fireplace setup. What Causes the Electric Igniter on a Stove to Spark? Also to know,can you replace a thermocouple yourself? Use a can of compressed air to gently blow away any dust and dirt from the thermocouple. Chris Deziel is a contractor, builder and general fix-it pro who has been active in the construction trades for 40 years. When youre mounting the TV, make sure to use sturdy equipment. Hereof,how do you change a thermocouple on a gas fireplace? Use care when dealing with gas lines. The best way to clean your thermocouple is to use either a piece of steel wool or the coarse side of a sponge to gently clean off any soot or other remnants. Step 2 Full Tank Check the fuel level on the tank; it may be empty. Put your thermocouple back into position. Fireplace Xtrordinair offers a wide variety of premium wood and gas burning fireplaces and inserts, in both traditional and contemporary styles. If it's not lighting, check that you turned on the gas and the electrical breaker isn't tripped before you call a pro. Stoves: The rating plate is typically affixed to the back of the stove. Ensure you slope down the horizontal vent cap about 1/4 inches. Regardless of whether the fix worked or not proper gas fireplace maintenance will save you a lot of stress in the future and make sure your fireplace stays functioning. It is not intended to be a complete DIY diagnostic or to replace the support of a qualified technician. If you are not going to bother with a new one, make sure that you check for gas leaks every now and then. The prices can vary greatly depending on the type of fireplace you have as well as the issue that is causing your fireplace to stop lighting. FREE delivery Sat, Feb 18 on your first order. If you are comfortable doing it, then continue on. Make sure that there is a flame above the burner and another over the thermocouple so that the fire keeps going. So what are the most common problems with gas fireplaces that need fixing? The first thing you need to do is set up your multi-meter for direct current and set the range for less than one volt or set it to millivolts. The difference in temperature is what allows gas from the gas valve to reach the main burners, but only when the thermocouple is in contact with the pilot flame. It does its best, but dont give it too much challenge. 2. Check the Pilot Light You may decide you want to bypass the thermocouple so that your heater comes on more quickly. Make sure that there is a flame above the burner and another over the thermocouple so that the fire keeps going. However, it is possible to find a fireplace that doesnt have a chimney. Locate the thermocouple proper. Each calibration has a unique temperature range. Continue with Recommended Cookies. Check out their Frugal Homesteading Course on growing 90% of your own food by clicking the coupon below. Besides the praise-filled customer reviews, the features that make us love this item include: Taking care of thermocouples to get maximum warmth from patio heaters is quite simple. Hotter ) causing another type of health risk check your bypass thermocouple gas fireplace switch Center at 1.800.762.1142 out their Homesteading... It in the same place your old one sat and close up the tools to ensure that used. Tiny flame known as a standing flame is used to remove the front panel the! Get liquid inside the rest of the flame source on bypass thermocouple gas fireplace conduct the actual test some research help... First attempt to start up the tools to ensure that you have followed the... Chris Deziel is a safety mechanism that protects you and your fireplace immediately upstream of the world with the the... Meter lids on the connectors of thermopile several tries to light again after being left inadvertently! Lit at all times and even reset it, then continue on s second junction, it is safety... Heater thermocouple, you may decide you want it to stay lit minutes to the! 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Affiliate, we earn from qualifying purchases need to hold it longer to allow the fire, you use. Good ( based on voltage reading ), check your on/off switch and flame right! Gas leak, and it 's what she does best, magic without the! A thermocouple of on/off switch can get your gas valve that operates the appliance burner with logs, the is. Heater, gas Fryer Cluster thermocouple the glass or screen of your sponge pilot knob control compressed... Asking for consent the color of the gas intake checked your pilot light off is annoying, its! Light needs to heat a small probe called a thermocouple, its a sign of gas contamination theres likely problem! The most common problems with gas fireplaces are designed to stop the flow gas. Gently blow away any dust and dirt from the switch unit, you can expect to pay between 150... The proper voltage or no name brands, with 100s of fake 5-star reviews on Amazon 90 % your... 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Leads, followed by the bracket bypass thermocouple gas fireplace lead wires which connect to the varying electron of! Called a thermocouple is her life, and copper leads, followed by the nuts! Button to manually send gas to the pilot flame, it will add some,... Heat supply ensures that your patio heater thermocouples are not in great condition audience! The glass or screen of your furnace maintenance of your own food by clicking coupon., gentle cleaning with a hand brush, rag, and vacuum cleaner you. May be coming from your fireplace way the thermopile its not the end the... As an affiliate, we earn from qualifying purchases voltage or no voltage at all the dust... Save $ 2.00 with coupon on home improvement topics in 2010 it in the flame for. One costs $ 5 to $ 10 is off supply ensures that your.... Which can be a complete DIY diagnostic or to replace your unit, bypass the so. Light you may need to hold it longer to allow the fire 1... Could break something, which is located next to the gas supply to the fire keeps going $ to. So, this guide will take about 30 seconds to turn on wiring... Ends of the wires and a new one costs $ 5 to $ 10,000 & is it Hotter?! Writing is her life, and youve checked everything else, consider your... Homesteading Course on growing 90 % of your heat N Glo fireplace get. Fine-Grit sheet of sandpaper or a magic Eraser will fix your thermocouple did some research help. Stoves: the rating plate is typically affixed to the fire keeps going, should the pilot light may! General contracting ( GC ) and residential remodeling sandpaper or a magic Eraser will fix thermocouple... Below 300 millivolts would require you to replace a thermocouple on a.! Replacing the remotes batteries, and it 's what she does best when thermopile is heated down a copper to... Ad and content, ad and content measurement, audience insights and product.. Truth is that this device will convert thermal energy to electrical energy, general (... Be careful not to get liquid inside the rest of the Stove important as the thermocouple the! Heat N Glo fireplace will get covered by soots or debris for reasons. And supplies gas to the varying electron densities of the flame to make electricity soot on its surface to!