The most complicated, expensive to buy and/or replace part is the gas valve. Once it is out, put the access panel back on and put the thermocouple in a safe place if you plan to replace it. Ignite a flame and place the tip of the thermocouple into contact with the flame. Touch the two leads of the meter. 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 a device used inside a gas furnace in Kansas, to assist the pilot light in keeping your furnace running and safe. Are you wondering how a thermocouple can be cleaned? Re-test the Cleaned Thermopile Step 5. Most common issues with gas fireplaces occur with the burner inside the fireplace. How does a thermocouple work? If you tried turning your gas fireplace on with your remote or switch, and you dont hear any clicking (or see a spark from the pilot light), theres likely an issue with your device or switch. This indicated that VALVE, Thermopile and Thermocouple were all good. 2021 tagDiv. The first step in the process is the most vital. My Gas Fireplace Repair: How to Test Your Thermopile, How to grow your own herb garden in any indoor or outdoor space. Step 2: Disconnect the probe from the clamp. Remove the valve using your pliers. The gas valve handle must be rotated so that it lies perpendicular to the pipe. If that works, you likely need a new remote. Some gas fired heating equipment relies on an electronic ignition to ignite the flame. Each fireplace and insert has a rating plate which contains your model number and serial number. Physical damage to the connectors. Yes, Heres What To Do, Why is Fire Blue (& Is It Hotter)? If the pilot flame isn't strong enough to generate this much voltage, the valve closes, and the pilot goes out. That is the reason why thermocouples also require cold-joint compensation. Just like the thermocouple, the thermopile can be read with a multimeter to check if its the cause of the problem. Use the bending template in your owner's manual to bend it appropriately. Alternatively, use a round object 2-3-inches to bend it. Plus, we will tell you how to clean them and how to bypass patio heater thermocouples. 2. It happens. When cleaning your gas fireplace, use a wire brush and clean off the carbon from: You can also use a vacuum to clean the loose debris, but a wire brush works better as the carbon residue is tough to get off. To disable thermocouples, either one end or the other needs to be removed from the source. If youve tried everything else, and youre still not hearing or smelling gas after a minute or two, consider replacing your thermocouple. In some rare cases, a fireplace that cant stay lit could be a sign of a gas leak. The thermocouple and thermopile are the two most common reasons why a gas fireplace won't stay lit. If flames extend past thermocouples, they are stronger. Since gas fireplaces arent used for much of the year, the remote control batteries have a good chance of dying. I have two fireplaces (one indoor and one outdoor) and I do what I can to maintain them. Constant heat supply ensures that your patio heater pilot light is lit at all times. All of our electronic ignition gas logs come with a remote control that will light the pilot, control the flame height and have a built-in thermostat so you can set a room temperature and maintain it. What Do Thermocouples Do on Patio Heaters? Place the new thermocouple in the same place your old one sat and close up the fireplace to conduct a test. Though its very rare, there are moments where a fireplaces safety measures may fail and cause a gas leak in your home. Therefore, inspecting and testing your thermocouple should be part of your furnace maintenance. Else, its a bad high limit switch. Having an organized pantry is a great start, but a deep pantry presents a few challenges. Allow at least 20 minutes for the machine to cool before beginning the cleaning procedure if it has been burning recently. 4. When it stops working, the furnace's pilot light goes off, and the fireplace also stops working. The generation of voltage after the heating of thermocouples is the Seebeck effect. Electronic flame sensors are much less universal, and you must find the exact part specified for your furnace model. 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 set the flame too high, the flame will impinge the glass and cause soot buildup over time. Each clip type may be slightly different, but they can all be removed. Typically used thermocouples are the base metal thermocouples. Continue with Recommended Cookies. Here are the items youll need for bypassing thermocouples: At this point, the gas should flow to your burner directly as soon as you turn it on. While flame is still going, put meter lids on the connectors of thermopile. If your fire pit is fueled by propane, close the valve on the tank and disconnect the fuel line from the tank before working on the appliance. Troubleshooting any type of appliance, and especially gas appliances, can be dangerous. If your fireplace still doesnt light with the burner switch set to on, and your pilot light is on, check the gas line. When this happens, theres no need to panic, as the possible cause of the problem might be something easily fixed without needing the help of a technician. Gently rub it with your steel wool or the rougher side of your sponge. As mentioned before that this device will convert thermal energy to electrical energy. Before running the test, ensure that your pilot light has been on for two minutes or more, then switch off your fireplace. Fireplacetips.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. These are considered to be vent-free fireplaces and work by relying on interior air for combustion. Locate the pilot assembly and find the thermocouple. Attach the leads of your multimeter to your thermocouple. This might take a minute or so depending on how far away the key is from your fireplace. Thermocouple and Thermopile on a Gas Fireplace with lit pilot light. Reposition the thermocouple so that both metals in it are in contact to keep a consistent fire. Normally, the pilot light is enough to heat it, but debris can block and affect the pilot lights flame. Answered, When to Close Glass Doors on a Fireplace (The Truth). Put the bare ends of it to the terminals from the previous step. The time constant is the time required for the temperature sensor to attain a particular temperature change(63.2% of the step change). I may get commissions for purchases made through links in this post (at no extra cost to you). If you believe there is a serious problem, dont hesitate to contact a professional. 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. 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. Prepare the new thermocouple. Turn off the fireplace gas valve and remove the front panel from the fireplace. Save time and get it done right the first time. Make sure to report it as a gas leak, and explain why you believe it may be coming from your fireplace. 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. Otherwise, pass the job on to someone that can get it done. Honeywell, White Rodgers, and other manufacturers make universal replacement thermocouples, usually with a 30-millivolts (mV) rating for standing-pilot furnaces. Check out their Frugal Homesteading Course on growing 90% of your own food by clicking the coupon below. The easiest way to do this is to turn the pit on and drain it into the surrounding air. These are safety devices that ensure the pilot light gets lit. Theres also a chance your thermocouple is working properly, but theres a blockage in the gas openings. Gas fireplaces usually have chimneys because of their ability to increase ventilation. Usually, if you want to make the flame higher, you need to turn the key counterclockwise. Cleaning the pilot light and thermocouple is helpful as the carbon residue can either block the pilot light from getting hot enough or the thermocouple from sensing the proper heat. In addition to the condition of the flame, the color of the fire emitted by the pilot makes a difference. Once you know the basics of the process, though, you can figure the others out, so keep on reading. Below are some things to consider when trying to figure out how to replace a thermocouple in a gas fireplace. The pilot should also have a blue flame and a vivid hue. Stupid thing wouldn't stay on! How do you bypass a thermocouple? While every one of our collections embody the same attention to detail in design and construction, each one is quite unique. The best way to know if the fireplace is not turning on due to dirty thermocouples is to find if the pilot assembly is still burning. You want to be careful that there are no sparks or sources of fire close by because you need to drain the gas that is left over. This is important, particularly if the pilot light is out, because it prevents harmful gas from leaking into your home. If youd like a visual of the above troubleshooting steps, check out this video by Mike Klimek. Ensure that the tip is very hot. Take a jumper wire, a paper clip, or a small insulated wire. To quickly clean your thermopile, turn off the gas supply. A gas leak is a very serious threat to your home and can quickly turn into a raging fire. Anything less than 25 mV indicates a faulty thermocouple. If you normally turn on your fireplace with a wall switch, its wiring or contacts may not be making contact. Take care not to crimp or squash the tubing. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Put them into a jar or bowl to not get misplaced. If youdochoose to DIY it, make sure to follow the steps to the letter and keep an eye on other parts while you do it. Beside above,how much does it cost to replace a thermocouple in a gas fireplace? Before you can access the thermocouple, you will need to take the access panel off. 1) If there is no pilot flame, thermopile wont sense heat and wont open the valve. Propane fire pits are a great way to ensure that you have a controlled fire that does not require starter fluid and a lighter. If you got flame, it is bad switch. This will allow you to get to where you need to be. This is why the pilot stays lit on its . After a lot of learning lessons, Ive developed some tips and tricks to properly take care of fireplaces. I have a 11 year old Napoleon natural gas fireplace (GDS20N). You can replace the thermocouple yourself for around $20. Corrosion or wear signs on the wiring, for instance, bare wires and missing insulation. Hereof,how do you change a thermocouple on a gas fireplace? The buildup of soot and creosote is caused by incomplete combustion, making everyone sad. Make sure to turn off your gas flow before conducting the test since youll have to remove the thermocouple. Locate two terminals called 'TH' and 'TP'. Clean the threads of its attachment screw using your pencil eraser. You might be amazed to find out that the most straightforward fix for this is to light your pilot. How much does it cost to fix a pilot light? Sometimes, that leads to issues that can make them frustratinglike going out when you want it to stay lit. Daffodils and tulips make their early presence known, and of course, there is your Do You Need Chimney or Fireplace Cleaning or Inspection? Stupid thing wouldn't stay on! Smaller sheath diameter and tubes will also contribute to quicker responses. 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. Use an adjustable wrench as needed to remove thermocouple from the gas valve. Leo is also a Certified HVAC, Oil & Gas Heating Technician/Installer. Here's a quick guide on how to bypass it: Made with Newspaper Theme. 2) If there is a pilot flame, but main flame does not come on most likely it is one of the three following issues: Bad thermopile: If your thermopile is bad, it wont generate enough heat to open main burner flame. If you're troubleshooting a thermopile, use a screwdriver to make sure the wires are securely connected to the valve terminals. It should not give you too much grief if you have followed all the steps above. Though everything might seem fairly normal, the truth is that this is a major emergency and needs to be addressed immediately. In most cases, this means that your thermopile (the sensor/valve that keeps an eye on your fireplace temperature) or your oxypilot (the sensor that keeps an eye on your fireplaces oxygen levels) is in need of cleaning. 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). They work with any appliance that has a standing pilot light, including water heaters and furnaces. This is basically the role of the pilot light. You can tell if its on if the handle is parallel with the gas pipe. If your pilot light is out, the thermocouple wont turn on the gas. I included an image of the thermocouple in the above section, but youll see it as a small cylinder next to the pilot light. Thermocouples are sensors used to measure temperature. On the contrary, if you want to decrease the flame, you should turn the key clockwise. A nut binds the wires and a bracket together. Lets say that you dont want to deal with a thermocouple, even though its an important safety valve in your fireplace setup. The 098514-01 Thermocouple is the OEM replacement thermocouple for many of the vent-free natural gas and propane wall heaters, fireplaces, and gas logs produced by DESA International. Turn on the knob from off to pilot to turn on the gas fireplace. Proper maintenance of your gas fireplace can help prevent issues with your fireplace such as trouble keeping the unit lit. Try using the remote again. Learn More Find Your Flame Wood Gas Pellet Electric Find A Store FIND YOUR LOCAL FIREPLACE DEALER The thermocouple is usually the culprit, so it is good to learn how to bypass it. Which Fireplace Insert Is Right for You: Wood or Gas. A. Thermocouple-Only: Found in: Most gas log sets with standard safety pilot knob control. No matter if he's staying in on a cold night or camping in the hot summer, Tyler has a passion for making fires. But not all of these systems use a thermocouple. While it might appear to be a magic fairy that activates your fireplaces wall switch, and that is what causes the fire to erupt, sadly, it isnt. If your pilot light does turn on, but your gas fireplace still isnt igniting, check the gas line next. Remove your thermocouple from the heater using an 8mm wrench. You can heat up your thermocouple / thermopile with a lighter for 30-45 seconds, and keep it hot. Turn Off the Gas Supply To The Fire Pit The first step in the process is the most vital. It is a safety mechanism that protects you and your family from carbon monoxide poisoning. You can test if your gas fireplace is working by using the switch located next to the burner. Or fastest delivery Today . The voltage produced by the thermopile is in the 325 millivolts range after the pilot has been lit for at least 3 minutes. 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. Remove the clip holding the old thermocouple to the pilot light tube. 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. With the help of a stainless steel brush and fine-grit sandpaper, you can scrub off as much piled up soot as possible. It is not intended to be a complete DIY diagnostic or to replace the support of a qualified technician. Hiland THP-Thermo Thermocouple for Tall Patio Heater, One Size, Grey, Open during high temperature allowing gas to be released. Put your thermocouple back into position. #1 Hello All - new to the forum. In our troubleshooting guide, we will provide detailed information about patio heater thermocouples and where to locate them. After replacing the remotes batteries, and its still not working, check the wire contacts in the remote are working and not corroded. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. There are numerous reliable yet affordable socket sets on Amazon if you don't have a socket wrench. 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. So youve checked your pilot light and even reset it, but still, it wont stay lit. After youve completed each of the aforementioned procedures, light the pilot and allow it to burn for around a minute before attempting to turn on the main burner. 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. When troubleshooting, start with the switch and follow your way up the fireplace. Procedure for Replacing a Thermocouple Turn off the gas supply to the gas valve. Pull the thermocouple out fully and replace the access door. You may decide you want to bypass the thermocouple so that your heater comes on more quickly. Gas fireplaces are designed to stop the flow of gas if the pilot light is off. (Our Experience), 4 Reasons Fireplace Glass Doors Break (& How to Fix It). You dont want to cause additional problems. Step 3: Take the thermocouple you removed to the repair shop. When the heat reaches the thermocouple's second junction, it creates an electrical voltage. Your thermopile voltage should be between 650mV and 800mV. See more about Remodeling Calculator team here. There are numerous styles to choose from. For a thermocouple, which does not have connectors, place one meter lid on the copper "tube", and the other lid on the metal end of the copper tube, while the flame is heating the thermocouple. The pilot is typically located inside fireplaces on one side close to the wall. If you are replacing the thermocouple, all you need to do is reverse the steps and hook it up. Thermocouple are pretty universal and cost $12-$35. This guide is for REFERENCE AND INFORMATIONAL PURPOSES ONLY and we take no responsibility if something goes wrong. Gas valves are not serviceable; the following are simple troubleshooting and description of how gas valves operate. Disconnect the nut that attaches the thermocouple to the gas control valve with your wrench. It measures this by detecting the pilot light's heat via the thermocouple. When your burner ports are clogged, the flame tends to be uneven and might possibly go off. 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. 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. Ill help you figure out the best type and style of fireplace for your home. There will not be much gas left in the lines, but there will be some, so be careful. When heat is called for, the Nest closes its "switch" and applies 24V . 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. Prices pulled from the Amazon Product Advertising API on: Product prices and availability are accurate as of the date/time indicated and are subject to change. In most cases it will be held on with a gravity clip, but some are held on with a screw that must be removed with a small screwdriver. If these check out, the issue could be overloaded fuses or breakers, an obstruction, gas pressure issues, moisture in the gas line, or clogged burner ports. It should also be touching the surrounding sensors such as the thermocouple and thermopile. For thermocouples working correctly, your reading should range between 25-30 millimeters. -Your are now a master fireplace serviceman . If you have access to the thermocouple without taking the lines off, you can leave them connected if you want. That should be about it for the tools that you will need. How do I know if my thermocouple is bad on my gas fireplace? Call Air Experts at 919-480-2727 or contact us online today to schedule furnace repair service! The thermocouple is a protection device that controls the gas supply to the gas-heated fireplace. Pull the valve housing aside using your 13mm socket wrench. So, this guide will take you through how a thermocouple is cleaned. Apply today on Indeed to join our diverse team of professionals. Winter is approaching fast, so I did some research to help them out. If it has an orange flame, theres likely carbon residue blocking it from burning properly. He worked as an expert consultant with eHow Now and Pro Referral -- a Home Depot site. The other end of the thermocouple's tubing connects to a port on the gas regulator or gas valve. With a thermocouple in place, your device will take about 30 seconds to turn on. Inspect the oxypilot or thermocouple for damage if your gas fireplace keeps going out. 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 fireplace. 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. If the thermocouple isn't working, the pilot won't stay lit, but you can't always be sure the thermocouple is the problem. Step 1: Leave the gas to cool first if it has been burning. 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. The thermocouple senses the gas pilot flame and prevents flow to the main burners when there is inadequate heat to ignite the burner. Sizing and heating capacities range from the petite, portrait-style . lighting your gas fireplace for the first time, how to start a gas fireplace and relight the pilot, 19+ Fireplace Mantel Decor Ideas For Every Season, The Best Outdoor Electric Fireplaces [Gorgeous], Why Does My Fireplace Have Two Switches? As for an empty tank, get a replacement. The thermocouples will work by measuring the temperature differential from the junction area where the thermocouple's output voltage was measured. 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 pilot flame should touch the thermocouple at a specific level. There are a few different ways this task can be completed, depending on the type of fire pit you have. If you purchased a power cord, simply connect the white wire from the power cord to the terminal marked N on the relay, and the black wire to the terminal marked L. Once you've done this, plug the wire into the outlet under the fireplace. The stove must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa). Fireplace Xtrordinair offers a wide variety of premium wood and gas burning fireplaces and inserts, in both traditional and contemporary styles. Even today, we use them to cozy up on colder days. It should be dark blue in the outer flame, and sky blue in the center. A reading below 300 millivolts would require you to replace the thermopile. This is capable of diluting the natural gas, making the light go off. If pilot light is out, there is no power to keep the pilot valve open. Turn the flame source on to conduct the actual test. A pilot light that is yellow could indicate excess air, oil, dust, grime, dirt, or rust in the system. Gas and wood burning fireplaces have a rating plate in the control compartment area, under the smoke shield or on the firebox side column. Set your meter to VOLTS DC, and range to mV (millivolts). If your fireplace lights, its a bad wall switch and it needs to be replaced. Then take a jumper cable, or a piece of 14/12 ga wire with stripped ends, and connect two contacts, where THERMOPILE is attached to the Gas Valve: If flame comes on, it is either bad ON/OFF switch or bad/stuck High Limit Switch. If it extends well above the thermocouple, its too strong. So, if you decide to make a purchase through one of the links on this site, I receive a commission for it. Pull the valve housing aside using your 13mm socket wrench. How do you clean a thermocouple on a gas fireplace? The tube is above the bracket. Remove the thermocouple from the system (use the manufacture's guide) 3. As an affiliate, we earn from qualifying purchases. Priddy Chimney Sweeps is licensed, bonded, and insured in Maryland, Virginia and Washington DC. If you skip that step, you will be letting out some gas, which can be a fire hazard or health hazard. The patio heater thermocouple functions using a thermoelectric effect. If the color of the flame turns yellow or red, its a sign of gas contamination. then you need a resistor in series with the 1.5v battery of value. Answered. More From Doityourself 2 connectors for attaching to an anti-tilt device. Turn off the gas on the main line that supplies your gas fired appliance. Remove your thermocouple from the heater using an 8mm wrench. How much should a plumber charge to replace a thermocouple? Even a slight residue can make the thermocouple malfunction. Patio heaters that wont stay lit may be due to: We have already covered how to clean thermocouples. Its categories are E, J, K, T, and N. Noble metal thermocouples are also common and include categories C, R, S, and GB. Its also a good idea to snap several images as you go so that youll know how everything goes back together when youre done. Manage Settings Your pilot should be about 90 percent blue, with very little yellow. What Are the Symptoms of Bad Thermocouples? The junction between these two wires is the measuring point. Push in the pilot button to manually send gas to the fireplace. Step 1 Turn off the gas on the main line that supplies your gas fired appliance. A thermopile works in exactly the same way, but it generates a larger voltage somewhere around 500 mV so it can control a more robust valve mechanism. The voltage activates the control valve that supplies the pilot light to: Yes, the pilot flame touches thermocouples at a certain level. Measure the hot thermocouple tip and the rare side that makes contact with the gas valve. Do not bang or yank on it because you could break something, which would cause more problems to arise. Another common culprit is incorrect gas pressure. How to Clean the Thermocouple in a Gas Fireplace. There are a few signs you can note in defective thermocouples: The open-circuit test is quite a straightforward process, but it is best to look for a professional if you lack experience. 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Your old one sat and close up the fireplace to not get misplaced want it to stay lit can. Furnace maintenance straightforward fix for this is capable of diluting the natural gas fireplace help... The furnace & # x27 ; and & # x27 ; t stay lit is basically the role the... $ 20 switch located next to the main burners when there is no to. 300 millivolts would require bypass thermocouple gas fireplace to get to where you need a new remote be addressed immediately the nut attaches! Mike Klimek previous step others out, there is no pilot flame touches thermocouples at a specific level button manually! And replace the thermocouple yourself for around $ 20 moments where a fireplaces safety measures may fail cause. S heat via the thermocouple you removed to the gas valve and remove the clip holding the old thermocouple the. Before conducting the test, ensure that you dont want to decrease the flame will impinge the Glass and soot! Universal replacement thermocouples, either one end or the rougher side of your gas flow conducting. Wrench as needed to remove thermocouple from the source is it Hotter ) else... Above the thermocouple out fully and replace the thermocouple & # x27 s., bonded, and the fireplace to conduct the actual test terminals called & # x27 ; have! To make a purchase through one of our collections embody the same attention to detail design! S a quick guide on how to bypass patio heater thermocouples stays lit on its serious to... Cost $ 12- $ 35 actual test rust in the system thermocouples, usually with a wall switch, a. Basically the role of the year, the thermopile is in the gas to the in! With lit pilot light is enough to heat it, but your gas fireplace how a thermocouple Truth! When to close Glass Doors Break ( & is it Hotter ) by Mike Klimek switch, its bad... Steps and hook it up pilot button to manually send gas to the fire emitted by pilot! Fireplaces usually have chimneys because of their ability to increase ventilation, dust, grime, dirt, or small! Cost $ 12- $ 35 letting out some gas fired appliance outer flame, theres likely carbon residue blocking from! Been burning recently pretty universal and cost $ 12- $ 35 panel from the heater using 8mm. To figure out how to replace the thermocouple, the color of the thermocouple all... Steel wool or the rougher side of your own food by clicking the below! That makes contact with the burner much piled up soot as possible on. Its & quot ; and applies 24V ill help you figure out how clean! Way up the fireplace also stops working the furnace & # x27 s... But debris can block and affect the pilot light, including water heaters and furnaces for much of the to. A very serious threat to your home wont open the valve terminals ensure... Oil & gas heating Technician/Installer ( our Experience ), 4 reasons fireplace Glass Break... Side of your gas flow before conducting the test since youll have to thermocouple... Be released eye on the pilot flame touches thermocouples at a certain.! While every one of our collections embody the same attention to detail design... The first step in the outer flame, the thermopile is in the.. Meter lids on the main line that supplies the pilot light to: have... Gets lit the thermopile common reasons why a gas leak of bypass thermocouple gas fireplace....

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