Flip it to the off position. The best part of this tankless water heater is that it is easy to use and can also be reset easily with the help of the control panel. Tankless units dont have tanks to store water, so the water flows through the exchanger and to the hot water tap. If there is no scale build up, then you should check the connections and wires around the flow adjustment valve. How to Reset a Water Heater (In Simple Steps) - Sensible Digs Launch Product . However, the normal functioning of the tankless water heater can be interrupted by various related issues. Commercial Heat Pump. Most tankless water heaters have their reset button present on the front or back side or at the control panel. Turn off the hot water tap, wait five minutes, restore power back to the heater and once rebooted, run the hot water from a facet within the area. Again, this is an issue for a professional but you can check that the proper settings are in place on the computer board. Checking for and removing electrical problems as a possible reason of your units reset button tripping is an important step in the troubleshooting process. Also, make sure the gas pressure is at the correct level. Its due to a thermostat fault in either the upper or lower heating element. 01 - AO Smith Water Heater Igniter Some water heaters use an igniter to ignite the gas. The classes are video-based courses that can be taken on a PC, Mac, or mobile device equipped with speakers and a high-speed internet connection. About Water Heaters; Register Your Water Heater; Support; Water Filters. The most general and effective way of resetting an AO Smith water heater is by pressing the reset button that is located on the unit. Ao Smith Power Vent Water Heater Installation event : evt, If everything seems to be in order but your water heater is still failing to ignite, then it is safer to call out a technician to take a look at it. If it is damaged or has a short in it, the temperature of the water will continue to rise. . The reset button avoids damage and is easy to reset within a few minutes. This error code usually means there is a fault with the flow adjustment valve. When I am not working, I love spending time with my family and friends. Most of these common issues are water heater leaking, water heating issue, the noise of the heater, and much more. Back To Instruction Manuals Residential Gas Tankless Product Support It is informing you about the failure of the inlet thermistor. [Solved] A.O. Smith Tankless Water Heater Stuck in Standby Mode Part 1 Opening the Water Heater 1 Disconnect the electricity to the heater. Stay tuned. Good luck for the next! Keeping it clean is critical to guarantee the long-lasting operation of your device. Use a multimeter to test both the upper and lower thermostats for continuity. In this article, Ill be addressing how you can reset the tankless water heaters by yourself in just a few simple steps easily. This debris will be what is preventing your water heater from functioning properly. The contents of this website is only our opinion on the topic and we dont guarantee that its error free. Smith line of water heaters is a broad one, covering both residential and commercial use and electric and gas options. In order to find and access the reset button, the metal plate has to be removed that keeps the thermostat in position. Each and every day at A. O. Smith, we are working on developing state-of-the-art solutions that are pushing new boundaries and paving the way in our industry. Commercial Gas Tankless. After this, turn ON the water supply for 3 minutes and then check the temperature of the water. One of the most common issues related to this tankless water heater is that it often provides hard water and installing it in an area of hard water gives the users a hard time as they have to replace the heat exchanger several times. Electrical issues are a common cause for the A.O Smith water heaters reset button to trip. This is the most common tankless water heater, available in an affordable price range. Hence, by following these simple two steps, the tankless water heater can easily be reset again. Head to your hot water tank. Set the thermostats to 120 degrees Fahrenheit if theyre not already set there. Press the reset button. Besides, the flow sensor impeller should be free from debris. The next step is to press and hold the reset button for a few minutes until hearing the clicking sound. These problems can be solved by resetting the tankless water heater by following simple steps. This error occurs when there is a high heat pressure on the unit. Types: A. O. Smith offers a wide range of residential and commercial water heaters. Find the circuit breaker that controls power to the water heater and switch it to the Off position. If the resetting process is delayed, the water heats up so quickly and at a higher temperature which is very dangerous. A. O. Smith University can provide customized live video training over the Internet directly to your company. The water should not flow out. You tell us what products and skills you want training on, an A. O. Smith University instructor will prepare a customized class for your company. This thermistor should be found attached to your water heaters exhaust. Residential Gas. If not, repeat steps 1-3. If you find a broken wire, immediately replace it by calling the Navien technical support unit or resetting it. Make sure that the gas control knob is set to the Pilot setting. For that, you must keep reading the article, and you will learn the easy way to reset. Each element has its own thermostat which "talks" to the other, ensuring that only one heating element is . In this way, the unit starts functioning properly and heats the water in less time. Just follow up on the below step-by-step guide to reset your Tankless Water Heater effectively and get the unit out of standby mode. Tankless Installation and Troubleshooting | A.O. Smith University Once you've done this, you can find the AO Smith tankless water heater reset button inside the panel, usually underneath some insulation. Why do I need to reset my tankless water heater? In A.O. Flexible power vent installation through the wall or roof up to 180 feet. The best part of this tankless water heater is that it operates on electricity and does not function on the gas line. Scale is caused by water settling on heat transfer surfaces and the impurities build up into a hard, crusty layer. This error code is telling you about the flow adjustment valve fault. How To Repair Code 391 Ao Smith Tankless Water Heater As water fills your hot water tank, the lower and upper elements kick in and warm the water. First of all, turn off all the outlets attached to the unit in your residence. If you need to reset your Smith water heater, there are a few things youll need to do. Why is My A.O Smith Hot Water Heater Tripping the Reset Button? These units are powered by electricity, natural gas, and propane. Before moving further, check that either the gas is connected to a cylinder or gas meter. Once you have the vapor sensor removed after disconnecting both spade connectors, you will then need to place the flammable vapor sensor in a well ventilated area for at least four hours to allow the device to reset. Your machine provides you with perfectly hot water on demand whenever you need it. If there is no scale, then you should also check the connections and wires for damage or looseness. Extreme weather conditions such as storms or improper gas pressure could cause abnormal gas combustion. AO Smith Water Heater Reset Button [How To Reset] - FireplaceHubs Clean the mixing thermistor or replace it if necessary. Before resetting the Navien tankless water heater, you should understand these various error codes on display. You should be able to find the settings in your water heaters manual, but if you are stuck, contact the support at AO Smith. If your AO Smith water heater is not getting hot, there are a few potential reasons why. Now, you should be able to understand how these error codes work and what they mean. After disconnecting all the electrical connections, the next step is to identify the location of the reset button. Find Your Solution Fast & Easy Great! In the following case, keep the tankless water heater turned off. Moreover, if the error persists, you must turn the unit off, remove the intake filter, and clean it properly. Pinpoint the switch on the computer board and make sure the settings are according to the user manual. Manual for 300 models. Reconnect All the Electrical Connections, How to Reset Takagi Tankless Water Heater, How to Reset Rinnai Tankless Water Heater, How to Reset a Rheem Tankless Water Heater, How to Reset a Noritz Tankless Water Heater, How to Reset Ecosmart Tankless Water Heater, How to Reset AO Smith Tankless Water Heater, How to Reset Navien Tankless Water Heater, Navien Tankless Water Heater Error Codes and How to Solve Them. Most of the time, this error occurs when there is a wire connection issue or a breakage, which can easily be fixed or replaced. A little surge or outage can cause the display screen to flash where power has been absent. However, different types of water heaters necessitate varying levels of upkeep. Does A Tankless Water Heater Use More Electricity? It lets you know about the failure of the mixing thermistor. Source: www.pmmag.com. The from of factors ensure leads many home owners to choose the brand is its dependability. If there are any burn marks on the computer board then this is a sign that your water heaters computer board is overheating and cutting out. The venting was done according to the code, the correct type was utilized, and the device obtained an adequate air supply. 3. Locate the temperature control knob on the front of the unit and turn it to the "Off" position. Check the thermistor wiring and ensure connections are good and not loose or broken. To reset an AO Smith gas water heater that is non-tankless, remove the electrical panel that is located on the outside of the water heater and take away any insulation thats placed behind it. The breaker is usually located in the main electrical panel, and it will be labeled water heater or something similar. Ignition failure is not an uncommon issue with water heaters and boilers, but its also highly recommended that you solve this issue by calling a technician to your home. This may be a new item to some of you, but for those who know, understand the importance of this devices function when it comes to keeping you and your home safe. Why am I not getting the hot water from the tankless water heater? AO Smith models ATI 110C, 310C, and 510C are indoor and non-condensing that utilize a built-in temperature controller and concentric or one-pipe venting system for easier installation. } To resolve this issue, a replacement heating element may be required. This website might also participates in affiliate programs with other online retailers. 5. The next step is to turn the knob of the thermostat in a clockwise direction to maintain the temperature level at the highest point. 5. PDF Download Pdf Ao Smith Water Heaters Troubleshooting Smith water heater reset button is not immediately visible. A. O. Smith Water Heaters (the warrantor) will furnish the ORIGINAL OWNER, 1) a replacement A. O. Smith water heater of equivalent size and current model if the glasslined tank in this water heater leaks and, 2) a replacement part for any component part which fails. In order to solve this problem, identify the venting material that is acceptable to the unit. Home | A. O. Smith Corp. When completely rebooted, run the hot water faucet from any area and see if hot water is present. This error is displayed when the unit faces blockage in the exhaust region. Clean away any dirt or debris and check the quality of the connection wires. Find the breaker that is labeled water heater. Switch off that circuit breaker. The LED display will show CE1 points. I followed your instructions and it worked, thank you for writing this post it helped me a lot! Pinpoint the switch on the computer board and make sure the settings are according to the user manual. callback: cb The flame rod should be free from dirt and grease, and the computer board should not be damaged. This error code pops up whenever there is a fault with the fan motor of your tankless water heater. It may look like a technical piece, Read More How To Turn On Water Heater? You will also need to switch off the gas line valve on a gas water heater. If your water heater is electric, youll need to reset it by flipping the circuit breaker. When you cant fix the error codes and there are more issues with your water heater, you should go for resetting. Also make sure that all sensors, electrical components, and other wiring systems are in a proper position in order to avoid short circuits. Shut off the power before detaching the remote from the heater. I will bookmark your blog and check again here regularly. Support Documents for All Water Heater Models | A. O. Smith You should also ensure they are securely attached. It happens if you detach the remote from the appliance while the power is on. This error should really be addressed by a technician, but you can also open up your water heater to check for any wire breakages or loose connections. Tankless models may not even require tools. After drying, fix the filters, and the error will be no more. The tankless water heaters function automatically and can be reset easily by following simple and easy steps. Inspect the flow adjustment valve wiring for damages or breakages. Check the exhaust pipe for a blockage and clear the intake air filters by cleaning them with water. Its super important that you keep your AFR rod in the best condition so you can keep using your water heater safely. What Is A Thermocouple? It is critical to supply the device with power and an accurate connection to have the device operating efficiently. With the passage of time, the functioning of the tankless water heaters can be interrupted by various types of issues that need to be solved on time. When the water temperature rises in an uncontrolled fashion, the reset button is tripped. The reset button will be located right inside the panel. The process of resetting starts by finding the electrical panel and circuit label. Resetting Rheem tankless water heater involves safe, easy, and straightforward steps that everyone can follow. This article will show you where to find the A.O Smith water heater reset button. Gas Connection: 3/4" Water Connection: Water heaters provide a luxury to individuals that many seem to overlook until they are left without the hot water that such units provide. Test the wire connection and make sure it is not loose or broken. You should try the most common fixes first. Why does the tankless water heater go cold? If you are addressing these similar or any other related issues then its high time to get your tankless water heater checked. First, check to see if the power supply to the unit is turned on. Commercial Electric. Then find the heater reset button and press it. This button is located in the lowest corner opposite the on and off switch. The thermostats in the water heater are responsible for monitoring the temperature in the tank. The best solution to clear this problem is to reset your Navien tankless water heater. It was attached to a 120-volt grid, was sufficiently grounded, and had unblocked access to gas and water. Includes an United Declare, A.O. Other than that, the reason for the appearance of the error code can also be an indicator of replacing the faulty ignitor with the functional one. Also, make sure there are no blockages in the vents. Unfortunately, if the unit does not function properly and the reset button trips and falls again, then I would recommend that it is better to call the expert to further solve the issues properly. Never tamper with a water heater that's still powered on. Our product specs, warranty sheets, installation guides, and user manuals are online. However, the gas ones have two other types: condensing vs non condensing, Read More Condensing Vs Non-Condensing Tankless Water Heaters Which one is better 2022Continue, Have you ever taken a bath when the tankless water heater was off? If the connection of the gas valve is also disconnected, reconnect those connections as well for analyzing the working of the tankless water heater. The error code may also be flashing three times. How To Reset Tankless Water Heater: 4 Easy Steps - Knowtheflo.com You can do a few basic checks first like making sure there are no loose wire connections or soot on the flame rod. To see how to reset an AO Smith electric tankless water heater, continue reading below. 4. Check to see if the water heater is now working properly. Before you start to disassemble your water heater, remember to shut off its power and that you reassemble it correctly. A.O. Smith Water Heater Troubleshooting - YouTube The flammable vapor sensor on a water heater works to detect any flammable vapors within one minute of them being released, thus triggering the gas to stop flowing and preventing any fires or explosions from occurring. Finally, if all else fails, you may need to call a professional to come and take a look at your water heater. Also, turn the knob off in order to control the temperature. Before the unit starts gas ignition, you have to open the tap with water flowing at the rate of 0.5 GPM. The fan motor could also be blocked by dust, debris or dirt and needs a clean. It is better to check the AO Smith tankless water heater installation manual to determine what model you have and where to look for the numerical code. If the reset button is causing a problem, then replace the access panel and then turn the circuit ON. This is a popular problem that a lot of AO Smith tankless water heater owners suffer from because this error code usually occurs when there is an ignition failure. on: function(evt, cb) { How To Adjust The Temperature On Your A O Smith Tankless Water Heater Wait for the water in the unit to cool before proceeding. WaterHeater HUB 2021 - All Rights Reserved. All the elements must be dry. After that, identify the reset button and press it hard for a few seconds. The foremost step to resetting a Takagi tankless water heater is to disconnect all the electrical and gas connections in order to avoid short circuits. Your Smith water heater should now be reset and ready to use. After draining the water, you must turn on the unit. Look for a damaged wire, especially near the heat exchanger. The solution to this problem is just the same as the previous error code check for broken wires, damage, loose connections, dirt and debris. It may be very difficult in Washington State to do tankless electric due to our cold incoming water temperature. If you have an A.O. I am quite sure Ill learn many new stuff right here! This is an older Atmor 24KW model, and has only been in operation about 2 years. Heres How To Troubleshoot It 2022, Tankless Water Heater Frozen Do These Things To Fix It. You might be facing difficulties in resetting your tankless water heating unit thats why you landed here. Make sure the resistance valve is 10.75 Kohm. The next step is to locate the reset button and push it hard for a few seconds and then release it. How To Reset Ao Smith Water Heater? Confirm the wires of the gas valve assembly are not cracked or broken before AO Smith tankless water heater troubleshooting. Consumers with Reliance, State, A.O. This is the final error code for thermistor failure. Electric water heaters have 2 thermostats, an upper and a lower one. To replace a broken or damaged ESM module, see page 36 for ordering information. Turn it off to provide security. Refer to . It usually means that there is a problem with the bypass valve. Before starting any step, the first and foremost step is to switch off the power button and disconnect all the electrical connections in order to prevent any electric shock. This tankless water heater is equipped with a computer board that regulates the heating process, helping the users to deal with various problems. This knob is usually located near the thermostat. With years of experience under his belt, Adam decided to put his water heater knowledge to work. 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