Navien Flow Sensor Replacement in Greater Vancouver
Genuine Navien flow sensor, supplied and professionally installed by Technical Safety BC–licensed gas fitters. Never sold for DIY.
The Flow Sensor on Your Navien Boiler
The flow sensor measures domestic hot-water flow so a tankless or combi unit knows when to fire and how hard. Scale and debris are the usual enemies, causing no hot water or false activation.
On Navien systems — including models such as NCB-240E, NCB-210E, NHB-150 — a failing flow sensor often shows up as e003 ignition failure or related symptoms. We diagnose it precisely and install the correct genuine Navien part.
Typical Lifespan
8-12 years
Brand
Navien
Part Category
Controls & Sensors
Safety Warning
No hot water despite good mains flow often traces to a scaled flow sensor — descaling and water treatment help.
Signs of a Failing Navien Flow Sensor
Parts Are Professionally Installed — Not Sold for DIY
For your safety and to keep your manufacturer warranty valid, BoilerPart.ca does not sell loose boiler parts over the counter or for self-installation. Under BC regulations, gas appliance components must be installed by a licensed gas fitter. Every part we source is genuine OEM and is professionally fitted, tested, and certified by our Technical Safety BC–licensed technicians as part of a complete repair or installation.
Why Have Us Install Your Navien Flow Sensor?
Other Navien Parts We Install
Navien Flow Sensor Service Across Metro Vancouver
Frequently Asked Questions
Navien Flow Sensor Replacement, Done Right
Genuine Navien parts, professionally installed and tested across Greater Vancouver.
A Division of CanroHeat.ca · Licensed Gas Fitters · Serving Greater Vancouver since 1985