Noritz Tankless Water Heater Reset Button

This is a complete guide on Noritz Tankless Water Heater Reset Button. From this guide, what you will learn: 

  • Where is the reset button located on the Noritz Tankless Water Heater?
  • How to reset a Noritz Tankless Water Heater
  • And more

Without further ado, let’s dive in. 

Table of Contents

Noritz Tankless Water Heater Reset Button: Where The Reset Button Actually Is?

Unfortunately, there is no physical reset button on Noritz Tankless Water Heaters. In other words, you can’t reset the unit the way your neighbor or friend resets his water heater using the reset button. 

But the good news is- you can still reset your Noritz water heater though the unit has no reset button. 

In the next chapter, I will illustrate two methods to reset the Noritz Tankless Water Heater. So, keep scrolling. 

How To Reset Noritz Tankless Water Heater?

Resetting your Noritz Tankless Water Heater is simple. And the best part is- the two methods I described below will also work for other electric tankless water heaters as well. 

Method 1: Unplugging The Power Cord

If your Noritz water heater has a plug-and-play power up system, it will be just a piece of cake to reset the unit. Just remove the power cord from the electric outlet and wait 30 seconds. Then, plug the power cord into the outlet again. Now, turn on the water heater and it will reset the unit. 

Method 2: Flipping the Breaker Off 

You can also reset the tankless water heater by turning it off at the breaker. Just flip the water heater’s circuit breaker down to Off position. Wait 30 seconds and flip up the breaker to On. Now, press the On/off button on the unit and it will reset your Noritz Tankless Water Heater. 


Why is my Noritz tankless water heater not working?

Here are some reasons that cause your Noritz Tankless Water Heater to not work properly: 

  • Cross plumbing or reversed connection
  • The water drain filter gets clogged by dirt and debris
  • Air in the gas line
  • No gas is flowing to the unit
  • Dirty or broken flame sensing rod
  • Improper wiring

How long do you hold the reset button on a hot water heater?

A simple press on the reset button will reset the unit successfully. However, if you don’t hear a click while pressing the reset button, I recommend you hold the reset button for 5 seconds. Once you hear the clicking noise, release the button. 

How long does it take for a water heater to heat up after resetting?

It depends on multiple factors like the type of water heater and the tank size. If you have a gas-powered tank water heater, it will take only 30-40 minutes to get hot water. On the other hand, it should take 60-90 minutes if you have an electric water heater. 


It’s simple to reset the Noritz Tankless Water Heater. Just unplug the unit from the electric outlet and re-plug the unit again after 30 seconds, which will override the water heater. If you notice water is dripping down, don’t play with the unit. Instead, turn the unit off and call a professional. 

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