Remove any foreign materials from the ignition rod.
Noritz tankless water heater troubleshooting guide.
Tankless water heaters are durable and long lasting units that do not require much maintenance.
Look for any obstructions in the vents as the fresh air supply might be being blocked.
Check the gas pressure for correct values.
Be sure to do.
Press power button to turn unit off open a hot water faucet turn unit back on.
To prevent scalding do not change the water temperature to a higher setting.
Confirm there is no loose wiring in the ignition.
Noritz america tankless water heater technical support home troubleshooting faq product info technical literature.
Ignition failure in your tankless water heater.
Noritz america tankless water heater technical support home troubleshooting faq product info technical literature.
If you are the owner of a smart tankless water heater from rinnai noritz paloma bosch takagi or similar this troubleshooting guide is for you.
Call the nearest noritz agent.
The guide deals with the most common problems and explains some of the error codes.
This water heater does not have a pilot.
Turn off the power to the water heater.
If the error code no longer flashes the problem is solved.