Do you know how to reset Rinnai tankless water heater? All you have to do is stop all the faucets or taps that release hot water, then press the on or off button two times. That’s it! A straightforward task to accomplish. However, there are instances that this does not work for the first time you do it. Well, worry, not dear friend. Just try doing it again and again until the water heater resets. See? It’s that easy! You don’t even need another hand for you to fix this problem.
Having a tankless water heater is such a wise choice. Tankless water heaters typically stay up to 20 years. They don’t need to be looked out in a very regular and strict manner, unlike the traditional ones.
However, tankless water heaters need to be appropriately maintained like any other appliance. It is also vital that when problems arise with your tankless water heater, you have the solution ready in your hands. My friends, there are more things that you should know, so without further ado, let’s start!
Rinnai Tankless Water Heater Error Codes
Now that we have already answered our main query, “How to reset Rinnai tankless water heater?” maybe it’s also good to discover some important things regarding the functions of this appliance. Tankless water heaters made by Rinnai are smart. They are featured with tools such as self-diagnostic ability, which monitors the operation of the water heater if it is in the proper form. It is straightforward for the user to know if there is any problem with the water heater because if there is, the unit will display a specific error code. However, they will still be useless if you don’t know how to decode these errors. So, just keep on reading!
Error code 10. Blocked air supply or exhaust
With such a problem, what comes into your mind first is to call a plumber. However, before doing so, there are some things that you can check yourself. Find where the venting material can be located, then check if Rinnai approves the material. If you discover that it is not, replace it with one backed by Rinnai. You may call your trusted plumber if you don’t know how to. If the venting material seems fine, check the exhaust or flue inlet for blockages.
Perhaps, the connection in the ventilation system went wrong; check upon that. Also, you may have missed setting up the dip switch properly, so seek a guide on how to set it up properly. Another thing is the condensation collar. It may be loose or not correctly installed. Lastly, investigate the fan if something is wrong with it; it is not rotating the right way. It may be blocked by something. Now, if all these things have not worked the way you expect, then it is time for you to call a plumber.
Error code 11. Ignition problem
This problem is quite dangerous to handle if not for an expert. However, you may try to fix it yourself, but if you are not that confident, then better call the plumber. Nevertheless, the plumber will fix this problem with the steps suggested to you. The difference is that he exactly knows what he is doing. Check if the gas is on by looking at the gas meter, water meter, or cylinder. You may have inserted the wrong type of gas or set the wrong amount of pressure, kindly check that out.
Perhaps, the gas line, as well as the meter and regulator, are not sized correctly. It may also be that the dip switches are not set correctly. Another culprit is the presence of air in the gas line. With such a diagnosis, help from the plumber is deemed necessary. Also, the water may just be not appropriately grounded. The error code may have also appeared because you need to replace the current igniter with a functional one. Lastly, you may care to check the gas solenoid valves because there might be a short circuit present.
Error code 12. Flame failure
Another problem that needs assistance from the plumber is the flame failure since this has something to do with flammable gas. The solutions presented for error code 11 are the same as this error code. However, there are other things that you can further do to fix this error. First, investigate the power supply if any connections have gone loose. Proceed to check the voltage if there is any drop. It may also be that the wire of the flame rod is not connected, or there are problems regarding the building up of carbon. Lastly, check other components if shorts are, and fix them accordingly.
It’s A Wrap!
At the end of this article, I hope that you have learned how to reset Rinnai tankless water heater. Also, may you understand the meaning of some of the essential error codes that the said water heater may display and how to fix each of them? Thank you for reading up to this point of the article. Your time and effort are very much appreciated!
Find out how to adjust temperature on hot water heater and how much is a tankless water heater too!