Navien Tankless Water Heater Repair & Installation
Navien tankless water heater repair, installation, and maintenance in Los Angeles u2014 error codes diagnosed same-day.
Navien is one of the most popular tankless water heater brands in Los Angeles, known for their high efficiency and built-in recirculation pump. When a Navien unit throws an error code, loses ignition, or starts producing inconsistent hot water temperatures, most issues trace to the heat exchanger, flow sensor, or combustion system u2014 all things we diagnose and fix regularly.
We service the full Navien lineup including NPE-A2 and NPE-S2 series. Error codes E003, E004, E010, E012, E016, E030, E037, and others are part of our regular diagnostic routine. We carry common Navien replacement parts and can handle warranty-adjacent repairs, descaling flushes, and full unit installations.
Common Navien Issues We Service
Error code displayed on the unit (E003, E004, E010, E012, etc.)
Unit ignites but hot water temperature fluctuates
No ignition u2014 unit attempts to fire but fails
Recirculation pump not maintaining hot water at fixtures
Annual descaling flush needed for hard LA water
What’s Included
Error Code Diagnosis
Read and interpret Navien fault codes to find the root cause.
Parts Repair
Heat exchanger, flow sensor, igniter, and gas valve repair.
Descaling Flush
Annual maintenance flush for LA’s hard water.
New Navien Installation
Full installation with proper gas sizing and venting.
Related Services
Navien Showing an Error Code?
Free, no-obligation estimate. Upfront pricing before any work begins.