New Boiler Costs. Here are average costs to repair or replace a few common water heater problems: An annual boiler service is the best way to keep it in good working order, diagnose problems early and limit costly repairs. - A typical thermocouple costs $8-10 even in Home Depot. Your boiler's thermostat (£101), air vent (£96) are among the cheaper repair jobs. Click to see full answer. If you have an older furnace (one that’s over 15-20 years), this may be difficult. 1. You’re seeing this ad based on the product’s relevance to your search query. This product includes a universal adapter that allows for easy mounting on most pilot burners. Steps Locate the pilot light controls on the gas valve. How to Replace a Water Heater's Thermocouple Turn off the gas supply. The thermocouple is a safety device located by the pilot light on your furnace. Considering this, how much does thermocouple replacement cost? After enough time, metal fatigue can cause a thermocouple to break. This would include push-in, clamp-in and screw-in burners. Remove the furnace's access cover. Model# RH20064. Ben Goheen, owner of Precision Plumbing in Winder, Georgia, near Atlanta, says another common problem is a bad (or corroded) thermocouple. Top subscription boxes – right to your door, © 1996-2020,, Inc. or its affiliates. If you do the work yourself, you will … If you do the work yourself, you will only pay the price of the part which is about $20. Changes in temperature can cause regular expansion and contraction in metal, which will cause thermocouples to weaken over time. There's a problem loading this menu right now. Listen for clicking near the gas valve. The Honeywell thermocouple safety device senses the heat from a standing pilot light. How do you know if you have a bad thermocouple? How do you drill a pilot hole for an anchor? If you do the work yourself, you will only pay the price of the part which is about $20. If it’s not, it’ll shut the gas off. Is Black Eyed Peas and purple hull peas the same thing? Does the length of a thermocouple matter? Furnace Service Cost Factors. Unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve. Are you experiencing dripping or a leak from underneath your boiler? Thermocouple Replacement - $20-$150 Calling a professional plumber to install a new thermocouple should only be up to $150. Likewise, how much does it cost to replace a pilot light? Install the new one the same way that you removed the old one. It’s easy to replace and a new one costs $5 to $10. I paid a pro to clean the burners and replace the thermocoupler, I do not know the brand. The life of the thermocouple will also be affected by the gauge of thermocouple, and gases it is exposed to from clay and glazes. Rheem Gasket Replacement Kit with Thermocouple for FVIR Water Heater. The most common cause of this is dirty or blocked burners, which is the part that you can easily take off to clean. Unscrew the nut that holds the thermocouple end fitting into the gas control valve, using an open-end wrench. If the pilot light won't stay lit, the thermocouple may be faulty and should be adjusted or replaced. How much will it cost to fix? 17 months ago the thing was not reliable. Beside this, how long does it take to replace a thermocouple? Rather than trying to unfasten the thermocouple inside the water heater’s burning chamber, it’s easier to … Honeywell CQ100A1005 36-Inch Replacement Thermocouple for Gas Furnaces, Boilers and Water Heaters 4.6 out of 5 stars 285 CDN$ 11.99 CDN$ 11 . Bad thermocouple – A thermocouple is essentially a sensor that regulates the gas supply to the boiler allowing the pilot light to ignite. How often do pressure relief valves need to be replaced? Among the cheapest to repair were a Thermocouple at £85, an Automatic air vent at £98, and a boiler ignition at £106. The No. They are available online and in home supply stores for a reasonable cost. A trip to the hardware store will reveal the true price. Thermocouple/Thermopile - The Home Depot. Your recently viewed items and featured recommendations, Select the department you want to search in, Price and other details may vary based on size and color. Step 2: Under the mounting bracket at the thermocouple tube, unscrew the bracket nut that holds the tube in place. To replace a thermocouple: Step 1: Unscrew the copper lead and the connection nut inside the threaded connection to the gas line. It's easy to replace and a new one costs $5 to $10. I installed this honeywell. Replacing thermocouple Professional replacement. This is a part of the water heater that keeps pressure from building in the boiler. Click to see full answer Also to know is, how much does it cost to replace a thermocouple on a boiler? availability. But not all of these systems use a thermocouple. Usually, a problem with the thermocouple causes the pilot light to go out. Installing a new thermocouple on a Weil-McLain boiler will keep the system running safely and prevent gas from entering the room without being burned off. This device generates a small electric signal to keep the gas valve open when the pilot is on. just had it done for $300. Click to see full answer. I went to a few places and could only find 24inch. Replacing a Thermocouple Shut off the gas and electrical power to the furnace. THERMOCOUPLE 18 INCH HONEYWELL REPLACEMENT FOR BOILERS, FURNACES, WATER HEATERS. Compare. Cost to Replace a Thermocouple on a Furnace Replacing a thermocouple costs $150 to $250, mostly due to labor time. This Honeywell 30" Replacement Thermocouple is an ideal fit for gas furnaces, boilers and water heaters that operate on 30 millivolt systems. Most homeowners paid between $160 and $400 to have their furnaces fixed. Replacing a thermocouple is an easy do-it-yourself job using only a couple of tools. If youre thinking about replacing your existing furnace or choosing which one to install in your new home during the construction phase, consult with a licensed furnace installation professional to help. Replacing a Thermocouple or Thermopile if Cleaning Didn’t Work. What are the names of Santa's 12 reindeers? Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. Honeywell, White Rodgers, and other manufacturers make universal replacement thermocouples, usually with … Replace a thermocouple (including the part) £75. Fortunately, cleaning a thermocouple is a repair most handy homeowners can do themselves. A burned out or broken thermocouple should be replaced. When heated by the pilot light, the thermocouple creates a small voltage. The thermocouple looks like a piece of metal tubing smaller than a soda straw. All the small holes on the burner should be clean and clear, if not then even a partial blockage can lead to the thermocouple not getting enough heat and, the burner won't stay lit. THERMOCOUPLE 30 INCH HONEYWEL REPLACEMENT FOR BOILERS, FURNACES, WATER HEATERS. The thermocouple's job is to shut a gas safety valve if the pilot light goes out. Also VAT must be added all round. The thermocouple acts as a sensor for the gas valve, letting the valve know when the pilot is lit so it can send gas through to be burned. The Honeywell thermocouple is made with dissimilar metals joined at one end. If the Thermocouple is faulty it will cause the unit to shut down. Honeywell Home CQ100A1039/U CQ100A1039 Replacement Thermocouple for Gas Furnaces, Boilers and Water Heaters, 30-Inch, Emerson TC36 Universal Thermocouple, 36-inch. It is a safety device that shuts off the gas if the pilot light goes out or the electric igniter fails. The No. For example, a thermocouple used at glass temperatures may last for over 1000 firings where the same thermocouple used at cone 10 may only last for 20 firings. Sanane of HVAC and Appliance Express says the average cost to replace a boiler, including labor and materials, is between $3,500 and $6,000 for a typical residential property. Honeywell CQ100A1021/U CQ100A1021 Replacement Thermocouple for Gas Furnaces, Boilers and Water Heaters, 18" 4.5 out of 5 stars 166 $10.92 $ 10 . When purchasing a replacement thermocouple or flame sensor, it's essential to make sure that it's compatible with your particular furnace model. Notes to the table above "Which Thermocouple is Right for Your Application" [infographic], Pyrosales Pty Ltd.,New South Wales, 4 Wordie Place, Padstow NSW 2211, PO Box 309, Australia, Tel: 1 300 737 976 & Tel: +61 2 9790 1040, Email: Website:, Tel: NSW : 02 9199 5755 VIC : 03 9988 0945 QLD : 07 3171 8672 CHILE : +56 22 5031596 CHINA : … If this voltage is not present, the … Your furnace pro can evaluate your home and determine the most cost-effective and best way to heat it. “Labour” at £175 a day (tradesman) £100 (labourer), includes incidental fixings etc. Free delivery with $45 order. How to clean? If the flame lights and goes out when you release the gas control knob after holding it in for the recommended 20 to 30 seconds, that's the sign of a thermocouple malfunction. 1 cause of pilot lights that won't stay lit is a worn-out, Shut off the gas and electrical power to the furnace. 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