A common issue with “off the grid” installations is the voltage signal that feeds the tankless water heater. Noritz water heaters require a pure sine wave voltage signal to operate properly. In situations where the unit will be installed on “off the grid” or solar power sources, the voltage signal…
A tankless water heater produces hot water almost instantly at the heater, but it may take a while to travel to your fixtures2. Cold water in the piping must be emptied before you will feel the hot water produced by the tankless heater. Longer, larger diameter pipes have more water…
Water dripping from the bottom of a heater typically indicates an internal leak or rain water entering through the exhaust vent. If you have this problem follow these steps: Shut off electrical power to the unit either by unplugging from the outlet or shutting off the switch or circuit breaker…
Our tankless heaters have a factory default setting of 120°F. The method of adjusting the temperature without a remote varies depending on the unit. Please refer to the owners guide and installation manual located at https://support.noritz.com/technical-literature or contact technical services at 866-766-7489. Applicable Models Models: ALL MODELS
One of the many benefits of going tankless is the relatively small size of the unit and it can be tempting to install it far out of sight to reclaim valuable space inside your home. Keep in mind tankless heaters should be inspected and serviced periodically to ensure proper performance…
Tankless water heaters require a minimum flow rate to be met before they activate and provide hot water. Most units have a minimum flow rate activation of .5 gallons per minute (gpm). If that minimum flow rate is not met, the heater will not activate. Make sure the fixture in…
Yes, you can use a Noritz tankless water heater for domestic hot water in conjunction with a heating system but not solely for a heating system (closed-loop1 system). See installation manual located at http://support.noritz.com/technical-literature and plumbing diagrams located at http://www.noritz.com/resource-center/manual-documents/ or call technical support at 866-766-7489. We also manufacture a…
Why does my unit make noises? This can be a result of a blockage in the flue, incorrect vent sizing, incorrect vent length, and/or incorrect gas pressure/gas type. If all of these match the requirements in the installation manual and there is still a rumbling sound, please call Technical Service…
How to locate model and serial number. What model do I have? Applicable Models Models: ALL MODELS
The heater has control valves that will make a “beeping” sound. This can be triggered during normal operation or as part of a self diagnostic mode of the heater even during standby mode. For further technical assistance call 866-766-7489 or use our Contractor Locator to find a local service representative….