Navien Boiler Losing Pressure in Greater Vancouver — Causes Fix — CANRO, Greater Vancouver Navien boiler specialists since 1999. Install, repair, service. Call (604) 359-1081.
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A Navien that keeps losing pressure has a leak, an expansion-tank issue, or a relief-valve discharge — CANRO finds and fixes the real cause. Call (604) 359-1081.
An active leak (fitting, valve), a waterlogged expansion tank, or a discharging relief valve are the usual causes — topping it up only hides the problem.
We pressure-test, check the expansion tank and relief valve, repair the source, and re-pressurize correctly.
Usually a leak or a failing expansion tank — it should be diagnosed, not just refilled.
Cold system pressure is typically around 12–15 psi; we set and verify it.
More Navien help from CANRO:
Call (604) 359-1081 or request a free quote. CANRO installs, repairs and services Navien boilers across all of Greater Vancouver. See our Navien boiler services.
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