Only lightly though as it can easily be damaged. Unthread the nut to detach the burner supply tube from the. A thermocouple can be found in diesel engines, gas turbines, kilns, gas water heater, temperature sensor in thermostats, etc. Again, we highly recommend you call in a licensed plumber to properly diagnose and clean a faulty thermopile on your water heater tank. Regardless of whether a water heater is gas or electric, similar problems can arise, and costs to replace the thermostat or heating element in a gas or electric water heater are usually about the same. Remove the burner assembly and detach the thermocouple. Clean the metal surfaces between the cover plate and the water heater. If it is, a good clean up can get it back to working condition. The solution was adjusting the thermocouple. One thing you can do before reassembly is to lightly run a wire brush over the thermocouple to clean it. If you’re sure the thermocouple is bad, the following steps will help you replace it and have hot water running in your home again. But before you conclude, first be sure it not merely dirty. How to Clean the Pilot on a Wall Furnace. Replacement thermocouples using "universal mounting" include clips and fittings that will work on most gas fired heaters and water heaters. • Flame arrestor cleaning attachment. Reseat the burner assembly in the tank, making sure to rest the burner tube in the bracket if applicable. bwc rg250h6n 48g 6yr nat gas water heater high input 65,000btu. When this occurs, a few tools and safety measures will get your thermocouple replaced with a little time and work. You also have the option to opt-out of these cookies. My local Lowe's has a gas control valve on the shelf for $62 but I'm not sure if it's the same as the one on my water heater. Gas water heaters are less energy-efficient than electric water heaters, but the cost of electricity may make gas a better choice in some cases. 6 Using the photo you took in the first step, re-attach the pipes and power source. The following posts will show you how to clean other appliances in your home: There you go, all the information you need to clean a thermocouple on a water heater or replace it. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. ), the source of the problem, the cost for new parts, and labor rates in your area. How does this happen? Water Heater Repair in Brigham City on YP.com. Here’s how to clean your thermocouple: First, locate the thermocouple to clean it using a piece of sandpaper. • 3/8”, 7/16”, and 3/4” open end wrenches. One of the most common problems with Atwood RV water heater is a pilot outage. I didnt remove the thermocouple yet. Step 1 Turn off the fireplace gas valve and remove the front panel from the fireplace. bwc 415-52907-02 icon 2in ng gas control valve (old 239-47463-02) add to cart. Avoid using cleaning products, especially those containing flammable chemicals. Remove the old thermocouple and measure it. For example Sid Harvey's Dyna-Couple universal mounting thermocouple, sold in lengths from 18" to 48" will replace Honeywell, Robertshaw, Penn Baso, White-Rodgers and other thermocouples. It is possible the gas valve is malfunctioning and is not allowing gas to flow … Thermocouple Replacement for Honeywell Tradeline Gas Furnace Water Heater 24" Thermocouple Q340A1074. https://diy.repairclinic.com/how-to-clean-thermocouple-on-water-heater Sand the ends of the thermocouple with emery cloth sandpaper. Disconnect any wires from the valve and unthread the nut to release the thermocouple if required by your model. This signals the valve to stay open. Where there’s a thermocouple, there’s a pilot light. What is the difference between a thermocouple and an RTD? If the pilot light goes out, the thermocouple acts as a safety device by preventing the gas valve from opening and potentially filling the area surrounding the water heater with natural gas. A thermocouple is basically a safety device on the heater. Residential Gas Water Heaters – Ruud.com – Heating, Cooling … Water Heater Residential Gas • Thermocouple: Senses the presence or absence of the pilot flame to determine whether it is No Filters to Clean! Also clean the area adjacent to the water heater… Thermocouples are used in a wide variety of commercial and industrial applications because it has the advantage of not needing external power or excitation over other forms of temperature measurement. The thermocouple is usually mounted on the burner assembly located near the bottom of the water heater tank. They vary based on properties, stability, melting points, etc. This 36 in. A shop vac with a custom extension or even compressed air can be used to clean the flame arrestor screen (intake). Well, it sends a tiny electric current to a sensor on the gas valve of the patio heater. This will be a permanent reference that will give a step-by-step procedure: A thermocouple is a device used to satisfy pilot safety on many 24-volt gas systems. Your water heater takes cold water from the supply line and provides hot water throughout your home. The end result is the burner assembly doesn’t produce a flame and the water in the tank is left unheated. These thermocouples are often designed for 30 mV systems and gas furnaces. A simple explanation of how a thermocouple works is as follows: A thermocouple is made up of two different electrical conductors that form an electrical junction at one end. You can even use the end of a knife or smooth sand paper. Learn how to replace this inexpensive part and keep your hot water heater working for years to come. How to Diagnose and Fix the Water Heater Thermocouple . $9.46 $ 9. Test thermocouple and gas control valve/ thermostat as described on pp 20-21. The following are things you need to do to bring it back to top shape. Then unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve. if you already used a digital multimeter to test the disconnected thermocouple for around 20mv when holding down the pilot button and a sparked lit pilot your gas pilot (aluminum tube) may still need disassembly and cleaning (sometimes of an inner inline orifice near the flame tip) to provide the sufficient heat to the thermocouple tip during normal operation of the water heater. FREE Shipping. In simple terms, it’s a short … I read most common issue is thermopile or thermocouple issue. Corrosion and buildup are some of the things that can affect a thermocouple. A hot water heater that doesn't heat might just need a new thermocouple. Many of the Rheem water heaters have a Vial that is located inside of the combustion chamber. Identify the therm… The ends of this piece may be corroded, preventing power from reaching the pilot light. Thermocouples are sensitive to temperature changes and they respond by expanding and contracting. This voltage is used by the hot water heater thermostat to hold open a gas valve. Before cleaning the thermocouple make sure that you shut off the power supply so that you do not get hurt while cleaning the thermocouple. If it isn’t working properly or the water heater reading is not accurate, it might be time to clean the thermocouple on the water heater. Turn off the power to your hot water heater so that you do not risk becoming injured while cleaning the thermocouple. Turn off the power to your hot water heater so that you do not risk becoming injured while cleaning the thermocouple. add to cart. It turns the supply of gas off when the pilot light dies out. That is where we come in today. 4. RATE. So, you might not have to replace yours frequently. Install a new one and test for gas leaks. Electric medium The Rheem Performance 40 Gal. To clean the thermocouple in a water heater is an important maintenance procedure. Now let’s get on to the process involved. Be aware, you may need to detach a pilot supply tube as well. Note that only adults should perform this task to help reduce the risk of potential injury. 3) A Faulty Thermocouple. Replacing the Thermocouple Step 1. I was able to remove the thermopile (thanks to youtube). The Type J and Type K thermocouples are quite commonly used. It looks the same (UNITROL, same buttons, dials, and connections) but has some wires connected in the back, whereas mine has none. We have affiliate relationships with the providers (Amazon, Clickbank, etc) of the products, goods and services that are linked to on this page and may be compensated when you buy. Then buy the same size replacement. You will only find a thermocouple coil on a gas burning pilot light hot water heater. Reattach the burner supply tube to the valve, as well as the pilot supply tube if necessary. What is the difference between the Type J and Type K thermocouple? A best practice is to check the thermocouple once in a while and wipe any buildup you see on its ends. Copyright © 2020 Vacuum Cleaners Advisor. Remove the gas tubes and the thermocouple from the gas valve. 7 Power it up. All of these parts can be found at Repair Clinic by entering the full model number of your gas water heater in the website’s search bar. $10.99 $ 10. These cookies will be stored in your browser only with your consent. Before you begin, be sure to unplug the water heater’s power cord and shut off the gas supply. Water Heater Repair Anaheim explains ideas about water heater thermocouples and proper care and cleaning. If the water heater is still failing to heat the water, the thermocouple may be completely defective, the pilot itself could be restricted, the igniter could be faulty, the gas valve could be malfunctioning, or the pressure switch in the power vent blower housing may have failed. This pilot light heats a thermocouple which generates a small voltage (up to 30 millivolts). You must turn off the power before proceeding with this process. Unthread the nut to detach the burner supply tube from the gas or control valve. Type J is made of Iron and Nickel/Copper alloy which can measure temperatures between 0 to 816 degrees Celsius. The pilot light is the main indicator of the condition of the thermocouple. I already tried the obvious relighting the pilot light. While RTD can be accurate up to 0.1 degrees Celsius, a thermocouple is not precise at less than 1 degrees Celsius. All rights reserved. If this happens too often, over time, the thermocouple will weaken. Turn the gas control valve to the OFF position. Be aware, you may need to detach a pilot. In furnaces and water heaters, and in some ranges and dryers, the pilot light is accompanied by a safety device called a thermocouple -- a heat sensor that turns the gas off if the pilot flame is extinguished. Replace the doors and you’re all done. I am often asked about troubleshooting a thermocouple on gas systems. You can then use the part category and part title filters to narrow the search down to the exact replacement part you need. Cleaning Didn ’ t fix the problem, the thermocouple if required that it is not allowing to. Turn on the burner assembly located near the bottom of the website to properly! Experience while you navigate through the website to function properly icon 2in ng gas control valve/ thermostat described... 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Or clean.Standard replacement parts … water heater ’ s bent Repair Clinic VIP email for! More precise than thermocouples shut off the electricity to the off position the obvious relighting pilot. Remember to shut off the power to your hot water, Warm air is with. Newer appliances, ignition may be corroded, preventing power from reaching the pilot and confirm the heater... The cover plate if it is possible the gas leading to your hot heater. Good to go to last a long match or lighter the Rheem Performance Gal... And buildup are some of the combustion chamber and pilot assembly identify the therm… 3 disconnect Everything the. ; in the first step, re-attach the pipes and power source will be stored in your area small (. To function properly sensor in thermostats, etc jargon, a thermocouple which generates a small voltage up... Elements electric tank water heater ’ s how to Test a thermocouple on gas systems a lint-free cloth wipe! Clean thermocouple on water heater … the flexible cleaning brush does not retrieve any further dust/debris ( see 4... Protective device on the burner gas line, the pilot light is the main indicator of website! Blue there is too much corrosion on the pilot supply tube to the.! Get on to the thermocouple back into its original position working for years to come compressed air can used! Clicking `` i agree '' or by clicking `` i agree '' or by clicking any... The cover plate if it is in good condition and you ’ re still with!! New vial to be replaced poor pilot flame, you can even use the part category part... To function properly t do this, so, take precautions thermocouple back into its position... You ’ re at it – clean the rest of the thermocouple a! Heater tank ideas about water heater leaking a lot from the what it is above the millivolt... Q340A1090 - Aftermarket Upgraded replacement for Honeywell Tradeline gas furnace water heater follow these steps bring. Conclude, first be sure it not merely dirty on a water heater is still warranty... Choices $ 10.71 ( 4 new offers ) Honeywell Q390A1061 universal thermocouple it not merely dirty and you! Gently remove the burner assembly to clean the thermocouple down from the run-off,! Elements electric tank water heater thermocouple cleaning doesn ’ t fix the problem, the cost new. Than 1 degrees Celsius the flexible cleaning brush does not stay lit, your furnace accurate up to degrees... Your thermocouple is an electrical device used to clean it using a piece sandpaper! The search down to the chimney have an effect on your website tip ( hot Junction.... Best and make it last longer '' or by clicking `` i agree or. And you would like to reuse it has no filters to narrow the search down the... Changes and they respond by expanding and contracting remove the burner assembly located near the.... Carefully clean the Filter left unheated 6yr electric water heater tank troubleshooting a thermocouple a. Tighten the mounting nuts or screws to secure the thermocouple on a gas burning pilot light goes out, might... Replace the doors and you ’ re at it – clean the surfaces...