Navien Tankless Water Heater: Change the installer password
Change the installer password on a Navien tankless water heater: The installer password is changed in the installer menu; the factory value is 1234.
Applies to: Navien NPE-A2 (built-in recirculation) and NPE-S2 condensing tankless water heaters: NPE-150S2, NPE-180A2/S2, NPE-210A2/S2, NPE-240A2/S2
How to fix change the installer password: step by step
- Hold Menu and Back together for 3 seconds.
- Open 1. Installer Menu and choose 7. P/W Change.
If the unit shows an error code, look it up: Navien Tankless Water Heater codes
Models
NPE-150S2NPE-180A2NPE-180S2NPE-210A2NPE-210S2NPE-240A2NPE-240S2
Source: Navien NPE-A2/S2 Installation Manual, 7.4.2 p.95-96; 7.5 p.98-99, p.105-107. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.