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. Our vigilant customer service will ensure that you get answered as soon as possible. The pilot should also have a blue flame and a vivid hue. This can be an indication that your fireplace thermocouple is either bad or worn out. If everything else works, and the fireplace lights, the issue is likely the wall switch or its connection to the fireplace (thermopile). Prepare the new thermocouple. Unscrew the old thermocouple by removing the bolts holding it in place. Recently, the thermostat (simple mercury switch style) stopped turning the fireplace on as it should. He has degrees in science and humanities and years of teaching experience. Because a thermopile generates more electricity than a thermocouple, thermopile-equipped fireplaces may be linked to thermostats for temperature . Thermopiles more expensive than thermocouple, but are still affordable and universal. Turn off the gas valve, or crank the knob on the propane tank to the off position. This indicated that VALVE, Thermopile and Thermocouple were all good. But not all of these systems use a thermocouple. If needed, you can trick your gas fireplace into temporarily turning on the gas by heating your thermocouple with a lighter. It contains two conductors(wires from different metals). Your thermopile voltage should be between 650mV and 800mV. What Do Thermocouples Do on Patio Heaters? One of the main reasons for the improper functioning is faulty thermocouples. Put your thermocouple back into position. Turn the flame source on to conduct the actual test. Then that voltage charges a small electromagnet in the valve, which holds it open and allows for gas to flow. Try using the remote again. Step 2: Connecting the House Current. If you dont hear clicking, theres likely a problem with your pilot light. 2021 tagDiv. This will case the flame to lift away from the thermocouple, the temperature to drop, and the gas valve to shut off. If the appliance has a thermocouple, the problem may be a faulty thermocouple. Gas and wood burning fireplaces have a rating plate in the control compartment area, under the smoke shield or on the firebox side column. Although not a common fault with gas fireplaces, just like every other component, it is subject to failure. If you got flame, it is bad switch. Some gas fired heating equipment relies on an electronic ignition to ignite the flame. Theres also a chance your thermocouple is working properly, but theres a blockage in the gas openings. Even a slight residue can make the thermocouple malfunction. The multimeter should read 300 millivolts or more. This is the easiest step. Allow at least 20 minutes for the machine to cool before beginning the cleaning procedure if it has been burning recently. -Your are now a master fireplace serviceman . I personally like the . You need to make sure that the fire pit is safe to use and that there is no gas leaking out of the access lines. The remote control transmitter operates on (2) 1.5V AAA batteries that uses a 4 button Power, Thermo, Up, Down function which transmits wirelessly to a battery powered receiver and allows thermostatic control of your fireplace - just set the desired . After the pilot flame has been burning for two minutes, the reading on the meter should be at least 350 mV, and anything less means the thermopile is bad. Check Your Thermopile Output with the TH/TP Contacts Step 2. If you have a little knowledge of tools and a grasp on how things work, it will not be tough to do the job. If your patio heater fails to generate heat and the thermocouple gets damaged, you can bypass it until you replace the thermocouple with a new one. Ensure you slope down the horizontal vent cap about 1/4 inches. 5 Steps to Bypass a Thermocouple On a Fire Pit 1. To make sure that its a safe thing to do, make sure that the fireplace has its fire contained, is properly ventilated, and has adequate distance from the television. Though it will add some risk, not using a thermocouple will only raise the risk to the same level as a gas grill. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. If the fire pit is run by propane, you need to remove the tank and put it somewhere else, like attached to your BBQ. Before starting the project, gather up the tools to ensure that you have everything you need. The procedure for testing a thermopile is similar except you touch the leads to the wire connections on the gas valve. Take out the faulty thermocouple and thermopile and replace them with new ones. The function of the thermocouple is to send a signal to the gas valve to stay open while the pilot is on. Thermopile 750mv 33" Gas Fireplace Thermocouple for Gas Fireplace, Water Heater, Gas Fryer Cluster Thermocouple. This compensation ensures the temperature at the connection end doesnt interfere with the measuring point. 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. Since the chimney was invented, having a fireplace was one of the most important ways people got heat in their homes and cooked their foods. If it reads less than 300 millivolts, it may be cause that your gas fireplace wont function, therefore, you should replace it. Remove your thermocouple from the heater using an 8mm wrench. My Gas Fireplace Repair: How to Test Your Thermopile, How to grow your own herb garden in any indoor or outdoor space. The junction between these two wires is the measuring point. Install a new thermocouple by screwing it in, heating it up a bit, and then lighting the pilot. This guide is for REFERENCE AND INFORMATIONAL PURPOSES ONLY and we take no responsibility if something goes wrong. You can use your manufacturers guide to locate these. When it stops working, the furnace's pilot light goes off, and the fireplace also stops working. The thermocouple lasts for 10 years or more, and when it fails, the pilot won't stay lit and the fireplace won't work. 4.2 4.2 out of 5 stars (81) $24.99 $ 24. While having a gas fireplace that shuts itself off can be a little bit of a nuisance, most of the time, its an easy fix. I have a 11 year old Napoleon natural gas fireplace (GDS20N). This is a step that you absolutely cannot ignore. Physical damage to the connectors. If you do not own a gas analyzer, you can usually rent one. Use a can of compressed air to gently blow away any dust and dirt from the thermocouple. The legs are welded together at one end, into a junction, where the temperature is measured. [Explained], Can You Move a Gas or Wood Fireplace? 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. Try the following DIY fix at home for a fireplace that wont stay lit. 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). And voila, magic without all the pixie dust! If you want to replace your unit, you can check out the Hiland THP-Thermo Thermocouple, ideal for any tall patio heater. The gas valve handle must be rotated so that it lies perpendicular to the pipe. Usually, if you want to make the flame higher, you need to turn the key counterclockwise. Find your main gas control valve, and locate the thermopile sensor then find the Electric Contacts labeled TH/TP and TP respectively on the valve. Not all gas fireplaces rely on electricity to function. Remove the valve using your pliers. As the seasons pass, you may find that your gas pressure drops below where it needs to be. Her interests include art and real estate investments. Thats 1 valve every 2 years! Just like the thermocouple, the thermopile can be read with a multimeter to check if its the cause of the problem. How to Get More Heat From Your Gas Fireplace, Why is Fire Blue (Is It Hotter)? You can test your thermocouple and thermopile with a quality digital voltmeter. Check out their Frugal Homesteading Course on growing 90% of your own food by clicking the coupon below. When youre mounting the TV, make sure to use sturdy equipment. That is the reason why thermocouples also require cold-joint compensation. In short, if the percentage of oxygen drops in the room, the flame shape is changed, heat is removed from the thermocouple, and the gas valve shuts off. Heat the thermocouple to a considerable level by placing it in the flame. While lower in voltage than a thermopile, a thermocouple does its best. Use a flashlight, or a shop light, to see inside the fire pit through the panel you just took off. Unfortunately, it can be a real bummer when your gas fireplace wont stay lit due to wear and tear of parts or improper maintenance. For North Carolina homeowners, Air Experts can check the thermocouple and every other component of their gas furnace during a gas furnace repair appointment. If your unit is receiving no heat, this wont be so. Can You Use Pallets for Firewood (Is it Safe to Burn)? 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. Therefore, finding why you have no flame in your gas fireplace is pretty straightforward. 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. Corrosion or wear signs on the wiring, for instance, bare wires and missing insulation. then you need a resistor in series with the 1.5v battery of value. Video of the Day Step 2 Remove the thermocouple access panel. Another common culprit is incorrect gas pressure. Install & Owners Manuals. A reading below 300 millivolts would require you to replace the thermopile. If you have access to the thermocouple without taking the lines off, you can leave them connected if you want. Light the pilot and observe the quality and size of the flame. If your fireplace lights, its a bad wall switch and it needs to be replaced. 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. If youre reading it below 25 millimeters, you should purchase a new model. You will just have to see how the clips work. Pull the thermocouple out fully and replace the access door. Attach the leads of your multimeter to your thermocouple. Recommended multimeter brands: Klein Tools, Fluke (expensive), Fieldpiece (also expensive), Milwaukee, Bosch, Southwire. Reposition the thermocouple so that both metals in it are in contact to keep a consistent fire. I fixed my gas fire pit. On the other hand, if you know what parts you need to buy and have a owners manual that walks you through the process, you might be able to do it yourself. #1 Hello All - new to the forum. The thermocouple is a protection device that controls the gas supply to the gas-heated fireplace. As you can see, the thermocouple is not that difficult to bypass. How To Disconnect Propane Tank from Fire Pit, How to get more heat from a propane fire pit. Disconnect the nut that attaches the thermocouple to the gas control valve with your wrench. Own a gas or Wood fireplace service will ensure that you absolutely can not ignore a. To Disconnect propane tank to the gas valve handle must be rotated so that it lies perpendicular the! Higher, you should purchase a new thermocouple by screwing it in, heating it up a,... 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