An error code 35 indicates a Thermistor – Exhaust abnormality. Please verify that the Thermistor – Exhaust is securely connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor Locator to find a…
An error code 33 indicates a Thermistor – Heat Exchanger Outlet abnormality. Please verify that the Thermistor – Heat Exchanger Outlet is securely connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor…
An error code 32 indicates a Thermistor – Hot Water abnormality. Please verify that the Thermistor – Hot Water is securely connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor Locator to…
An error code 31 indicates a Thermistor – Cold Water abnormality. Please verify that the Thermistor – Cold Water is securely connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor Locator to…
An error code 30 indicates a Thermistor – Air abnormality. Please verify that the Thermistor – Air is securely connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor Locator to find a…
An error code 13 indicates a malfunction with the optional CO alarm device. Please follow these troubleshooting steps after ensuring proper ventilation at the installation site: For further technical assistance call 866-766-7489 or use our Contractor Locator to find a local service representative.
Video for maintenance on a Pre-Mix Noritz Tankless
Fan maintenance for NRC663 (EZTR40)
This includes the NRCR, EZ Series and NCC199CDV This guide applies to the NRCR, EZ Series and the NCC199CDV. The process is also similar for our NR and NC units, though the parts and units look different.
New Product Announcement 2022 The new Noritz Scale Shield (SS-HB-3) offers an alternative method to treating hard water entering a tankless water heater for heating. Not only does it prevent the buildup of hard water minerals, but it will also lessen the maintenance workload for a homeowner and reduce the…