Navien Three-Way Diverter Valve Replacement in Greater Vancouver
Genuine Navien three-way diverter valve, supplied and professionally installed by Technical Safety BC–licensed gas fitters. Never sold for DIY.
The Three-Way Diverter Valve on Your Navien Boiler
The three-way diverter valve directs hot primary water either to the heating circuit or to the hot-water plate exchanger. When it sticks you get heat but no hot water, hot water but no heat, or radiators warming when you run a tap.
On Navien systems — including models such as NCB-240E, NCB-210E, NHB-150 — a failing three-way diverter valve 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
Hydronic & Water
Safety Warning
Radiators getting warm whenever you run a hot tap is a classic stuck-diverter symptom.
Signs of a Failing Navien Three-Way Diverter Valve
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 Three-Way Diverter Valve?
Other Navien Parts We Install
Navien Three-Way Diverter Valve Service Across Metro Vancouver
Frequently Asked Questions
Navien Three-Way Diverter Valve 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