Prepare the new thermocouple. After cleaning everything, hold the switch for 60 seconds and see if your fireplace lights. If flames are weak and blue they hardly reach thermocouples, therefore, they should be strengthened. Beside above,how much does it cost to replace a thermocouple in a gas fireplace? Proper maintenance of your gas fireplace can help prevent issues with your fireplace such as trouble keeping the unit lit. If it drops to zero, the thermopile has a short and needs to be replaced. Glass Soots. HEAD OFFICE #190, 2255 Dollarton Hwy, North Vancouver, BC V7H 3B1 If the main burner flame of the fireplace turns on at this . The following is only an educational overview of how gas fireplace components are checked. You need to hold the valve in for 5 seconds once the burner is lit to allow the thermocouple time to heat up. 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. Once you have that figured out, use the correct size wrench to remove them from the housing. The thermopile, on the other hand, opens up the gas valve when the fireplaces are turned on. Use the wrench to unscrew the connector that holds the thermocouple to the gas valve, then unhook the probe from its clip and pull out the entire thermocouple assembly. Honeywell, White Rodgers, and other manufacturers make universal replacement thermocouples, usually with a 30-millivolts (mV) rating for standing-pilot furnaces. Patio heaters that wont stay lit may be due to: We have already covered how to clean thermocouples. There are numerous styles to choose from. Push in the pilot button to manually send gas to the fireplace. If the above steps didnt work for you, heres a slightly different approach that works for many people: For more details on how to test your fireplaces thermopile, check out this post by mygasfireplacerepair.com. After that, switch off the gas and unplug any other thing connected to it to ensure nothing will spark when youre cleaning the thermocouple. 1) If there is no pilot flame, thermopile wont sense heat and wont open the valve. An inspection alone can cost between $60 and $130. If you got flame, it is bad switch. However, it is possible to find a fireplace that doesnt have a chimney. This is the easiest step. 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. 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. Turn on the pilot, let it burn for 30 seconds and note the reading. 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. You can use a pencil eraser to clean between the threads of the screw that connects the thermocouple to the control valve of your system. Want some nicer rocks or logs for your gas fireplace? The first thing you should do when faced with fireplaces that wont stay lit is to make sure your pilot light is lit. 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. Thermocouple and Thermopile on a Gas Fireplace with lit pilot light. However, if your pilot is lit but the gas fireplace isnt, then theres probably a problem with your thermopile. A blue jumper wire connects terminal 1 of the control relay to the 24V AC common terminal C of the wired or plugin transformer. Otherwise, pass the job on to someone that can get it done. You just need to make sure that you put safety first. You may have to wiggle it a bit before it comes loose. Soot buildup on the thermocouple may block the flame. Gas and wood burning fireplaces have a rating plate in the control compartment area, under the smoke shield or on the firebox side column. A wires diameter determines its temperature range. If youd like a visual of the above troubleshooting steps, check out this video by Mike Klimek. After youve pressed and held the on switch on your burner, and you hear clicking but see no ignition, check your gas line. 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. Make sure to turn off your gas flow before conducting the test since youll have to remove the thermocouple. Once your unit is clean, put it back on the pilot assembly. 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. The electricity is generated when the metal is heated down a copper wire to the gas valve that operates the appliance. 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). Hey, Im Tyler. If the pilot is dirty and needs to be cleaned, you will have a very weak flame. For further assistance, please call our Customer Care Center at 1.800.762.1142. You will want to analyze how the gas lines are connected. 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. In addition to roofing and remodeling, Leo is passionate about Solar, green building and energy conservation, so a lot of my time and energy goes to installing energy efficient heating and cooling systems. Another possible cause could be moisture in the gas line. : thereifixedit. If it works, your issue is likely fixed. then you need a resistor in series with the 1.5v battery of value. After a lot of learning lessons, Ive developed some tips and tricks to properly take care of fireplaces. The function of the thermocouple is to send a signal to the gas valve to stay open while the pilot is on. Put the bare ends of it to the terminals from the previous step. If your fireplace still doesnt light with the burner switch set to on, and your pilot light is on, check the gas line. Working with Gas and Electricity is very dangerous and should only be done by licensed plumbers / gas fitters / electricians. If it has an orange flame, theres likely carbon residue blocking it from burning properly. Normally when the thermocouple malfunctions or isnt working, it simply shuts off the gas to your heater. Else, its a bad high limit switch. An example of data being processed may be a unique identifier stored in a cookie. Anything less than 25 mV indicates a faulty thermocouple. 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. All the steps above are designed to give you the knowledge to do this job yourself, but you must follow along and make sure you are conscious of the danger that playing with gas lines can bring. 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 As the seasons pass, you may find that your gas pressure drops below where it needs to be. Reset the knob to the pilot position: Remember to do this when you are ready to ignite the pilot light of your gas fireplace. If you are having problems with your gas fireplace, we recommend you contact a reputable gas fireplace shop or plumber who can assist. When thermopile is heated by pilot flame, it begins to make electricity. If your pilot light is out, the thermocouple wont turn on the gas. This is important, particularly if the pilot light is out, because it prevents harmful gas from leaking into your home. If you overload your wood burner with logs, the lack of air circulation can also cause your fire to go out. Sizing and heating capacities range from the petite, portrait-style . 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. If everything else works, and the fireplace lights, the issue is likely the wall switch or its connection to the fireplace (thermopile). 2021 tagDiv. To bypass the thermocouple: Move the tilts switch wire aside. Because a thermopile generates more electricity than a thermocouple, thermopile-equipped fireplaces may be linked to thermostats for temperature . Troubleshooting any type of appliance, and especially gas appliances, can be dangerous. Rub until you remove all the soot on its surface. Valor Radiant Gas Fireplaces. Next, unscrew the wires from the wall switch and pull them off. Gently rub it with your steel wool or the rougher side of your sponge. The perfect position is when flames cover the tops of thermocouples and burn with yellow tips. The most complicated, expensive to buy and/or replace part is the gas valve. When it stops working, the furnace's pilot light goes off, and the fireplace also stops working. Grasp the sides and pull the panel up and away. While lower in voltage than a thermopile, a thermocouple does its best. Turn the gas back on and relight the pilot light. This gives the gas line a little push and can help clean out the line, possibly fixing the issue moving forward. Remove glass or anything covering the pilot burner assembly. Use your screwdriver to loosen the screws on the thermocouple. Like the other component parts in your furnace, the thermocouple can wear down over time, producing lower voltage than it should when heated. If you set the flame too high, the flame will impinge the glass and cause soot buildup over time. 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