With the help of a stainless steel brush and fine-grit sandpaper, you can scrub off as much piled up soot as possible. 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). Heres what I found. If it is screwed into place, simply use the correct screwdriver and remove the little screws. The glass or screen of your Heat N Glo fireplace will get covered by soots or debris for several reasons. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Locate two terminals called 'TH' and 'TP'. How Do You Clean a Thermocouple on a Propane Heater? Thermocouple and Thermopile on a Gas Fireplace with lit pilot light. You can get a technician to help you make the necessary adjustments. #1 Hello All - new to the forum. You will want to know what type and style it is when you order it. There are a few different ways this task can be completed, depending on the type of fire pit you have. The gas valve handle must be rotated so that it lies perpendicular to the pipe. Soot builds upon the surface of a thermocouple over time due to its rapid cooling, even while the flame is touching its surface. Try turning on the fireplace as usual. The thermopile connects to the TP and TP/TH terminals if you find the valve. Can I Install a Pellet Stove in My Garage? As you can see, this is why it is crucial to be in an open area away from anything that could cause a spark. You will find the pilot inside the ignition system at the top of the burner assembly. Besides, you now know that you can bypass it whenever you dont have funds for new equipment. Pull the valve housing aside using your 13mm socket wrench. If the flame is blue and weak, and barely reaches the thermocouple, it needs to be stronger. Before you can access the thermocouple, you will need to take the access panel off. In our troubleshooting guide, we will provide detailed information about patio heater thermocouples and where to locate them. Yes, but, Can You Paint A Marble Fireplace? The voltage produced by the thermopile is in the 325 millivolts range after the pilot has been lit for at least 3 minutes. The good news is gas valves almost never fail! Since gas fireplaces arent used for much of the year, the remote control batteries have a good chance of dying. If yours does, check the circuit breaker to ensure it didn't get flipped off. Physical damage to the connectors. During operation, if the pilot flame goes out for any reason, the thermocouple or thermopile will cool and shut the gas valve that supplies the supply to the burner, shutting down the heater. Pull the valve housing aside using your 13mm socket wrench. You dont want to cause additional problems. Remove the thermocouple access panel. By following steps in this guide, you assume ALL THE RISK! You can replace the thermocouple yourself for around $20. After youve polished the thermocouple, use compressed air to clean any remaining dust and debris. When youre satisfied with the way the thermopile looks, go ahead and re-ignite the pilot light. Newer models come with battery-powered igniter. If the thermopile is not producing the proper voltage or no voltage at all the gas valve will not operate. The thermocouple joint(exposed) will give the quickest response. Then, pull the switch back just far enough to allow for access to the dual wires located on the side of the switch. Normally, the pilot light is enough to heat it, but debris can block and affect the pilot lights flame. Use a flashlight, or a shop light, to see inside the fire pit through the panel you just took off. Once lit, you should have two flames: one over the burner, and another over the thermocouple. Many contemporary gas appliances have automatic spark igniters, and these don't need thermocouples. It checks to make sure the pilot light is on. Whether its mounted in the wall or in a mantle, theres nothing as relaxing as sitting with your loved one in front of your fireplace on a cold night at home talking about everything and anything. There are numerous reliable yet affordable. Detach the thermocouple from the pilot assembly. When replacing a thermocouple or thermopile with the help of a professional, you can expect to pay between $150 and $250. Do not light any matches or candles nearby. Its always a good idea to test your thermocouple with a multimeter to rule out the possibility of it being the reason behind your gas fireplaces not staying lit. Turn on the knob from off to pilot to turn on the gas fireplace. When youre mounting the TV, make sure to use sturdy equipment. 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. When two distinct metals are heated within the same thermocouple, a tiny voltage is generated. This site is the place where I share everything Ive learned to help you with your fireplace needs. Normally when the thermocouple malfunctions or isnt working, it simply shuts off the gas to your heater. When this happens, you should call a professional to get it changed quickly to avoid a fire incident. 2. If your pilot light does turn on, but your gas fireplace still isnt igniting, check the gas line next. You can usually find this near your fireplace (ours is on the floor next to the fireplace), but sometimes its found in the laundry room or other nearby room. This is due to the varying electron densities of the different wires. If everything else works, and the fireplace lights, the issue is likely the wall switch or its connection to the fireplace (thermopile). The thermocouple, which operates as a safety device, turns the gas supply off when the pilot light goes out. You can also use a lighter to heat the thermocouple. However, this may lower the maximum temperature you can attain. Your thermopile voltage should be between 650mV and 800mV. ft. of . This site also participates in other affiliate programs and is compensated for referring traffic and business to these companies. Due to the risk of fire hazards and the difficulty that can arise when it comes to finding the right parts, most experts agree that its better to call a licensed and certified gas technician. 99. The perfect position is when flames cover the tops of thermocouples and burn with yellow tips. Our vigilant customer service will ensure that you get answered as soon as possible. Chris Deziel is a contractor, builder and general fix-it pro who has been active in the construction trades for 40 years. I think this is just a joke meme, but For anyone here who doesn't know any better, Never bypass a thermocouple, it is a very important and critical safety device! Your thermocouple voltage should be between 25mV and 30mV. After turning your fireplace key, listen for any gas entering your fireplace (you may have to remove your fireplace glass door before you can hear it, see below). It works rather like a fail-safe to keep unburned gas from accumulating and burning, exploding or causing another type of health risk. Thermocouple is a low voltage generator that creates 25-30mv of DC electricity, that keeps the pilot gas valve open. 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. You can use it to manually ignite the gas fireplace when there is no electricity. Can You Use Pallets for Firewood (Is it Safe to Burn)? This can be an indication that your fireplace thermocouple is either bad or worn out. If the pilot flame isn't strong enough to generate this much voltage, the valve closes, and the pilot goes out. 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. If you skip that step, you will be letting out some gas, which can be a fire hazard or health hazard. Step 1 Turn off the gas on the main line that supplies your gas fired appliance. Her interests include art and real estate investments. Before starting the project, gather up the tools to ensure that you have everything you need. Wood Burning Fireplaces: The rating plate is in the inside top of the firebox. Here are the steps of doing it- Open the control panel of your gas valve. Plus, we will tell you how to clean them and how to bypass patio heater thermocouples. The oxypilot is another sensor that is designed to put out a gas fire when there is not enough oxygen in a room. Pull off the complete thermocouple setup after that. Once the wiring is free from the switch unit, bypass the wall switch by touching the two wires together. Call Air Experts for Furnace Thermocouple Repair in the Raleigh, NC Area! The thermocouple on your gas furnace is a heat-sensitive device that transmits a small electrical signal to the gas valve to keep it open when the pilot is on. Is It Too Late to Get a Chimney Inspection in Winter Months? If you set the flame too high, the flame will impinge the glass and cause soot buildup over time. And voila, magic without all the pixie dust! Use an adjustable wrench as needed to remove thermocouple from the gas valve. 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. This thermocouple provides a millivolt signal to the gas valve allowing the appliance to stay running. 5. A thermocouple consists of two wires, or wire legs, made from different metals. Regency Fireplace Products | Gas Inserts, Wood Stoves, & More! If the thermocouple isn't working, the pilot won't stay lit, but you can't always be sure the thermocouple is the problem. Cleaning dirty burner ports from time to time could help solve the problem. Hey, Im Tyler. Why will my gas fireplace not stay lit? There will be a small tube that runs off the side of the gas control valve and into the area of the main burner. Use care when dealing with gas lines. Pull the thermocouple out fully and replace the access door. Easiest way, is to light the pilot light and wait 5 minutes. Gently rub it with your steel wool or the rougher side of your sponge. Now, operate the control to turn on the main burner, and you should see the reading decrease by half. This can be an indication that your fireplace thermocouple is either bad or worn out. 2021 tagDiv. Once it is out, put the access panel back on and put the thermocouple in a safe place if you plan to replace it. Try using the remote again. Most fireplaces are pretty primitive and only have a few components that can malfunction and will require repair. 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. 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. Remove the thermopile wiring connector from the gas control. To remove the patio heater thermocouple, unscrew the connection nuts, and copper leads, followed by the bracket nuts. Don't Replace Your Thermopile or Thermocouple Right Away Step 3. Hereof,how do you change a thermocouple on a gas fireplace? The thermocouple must stay in constant contact with the flame of the pilot. 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