Discover the essential steps to reset your Navien tankless water heater in this comprehensive video tutorial presented by David Clark from Hvaclaboratory.com.. How to Reset Navien Tankless Water Heater in 6 Easy Steps Step 1: Locate the Reset Button. The very first step is to locate the reset button on your Navien tankless water heater. It should be a red or black switch located somewhere near the top of the unit. Also, make sure you have easy access to the power switch or breaker box.
Hopefully, now you know how to reset Navien tankless water heater after completing this guide. It's not a magic pill that will solve everything that's wrong with your heater. But if something is wrong with your heater, pressing the reset button is one of the first solutions you should try. Especially, in the case of a power outage.. That is why, I have shared a complete step-by-step guide on how to reset Navien tankless water heater. Navien Reset Button Location. If you haven't checked out the Navien tankless water heater thoroughly, it is natural that you won't be able to find the reset button. But it is necessary to know the button's location if you ever need to.