Baxi Error E119: Water pressure switch / critically low pressure
The boiler detects critically low primary water pressure (below about 0.5 bar) via the pressure switch/sensor and will not fire until pressure is restored. Closely related to E118 on this platform. We diagnose and repair it across Greater Vancouver — same-day and after-hours.
The boiler detects critically low primary water pressure (below about 0.5 bar) via the pressure switch/sensor and will not fire until pressure is restored. Closely related to E118 on this platform.
Baxi fault codes can vary by model and series. Use this as a guide — the same code can have more than one cause. Our Technical Safety BC–licensed technicians read the code, confirm it against your unit's manual, and diagnose the true cause before any repair.
Likely causes of Baxi error E119
- System pressure has fallen below the minimum firing threshold
- A water leak in the system or boiler
- Faulty or stuck water-pressure switch/sensor
- Waterlogged expansion vessel
- Air binding preventing correct pressure reading
What you can safely check
- Check the pressure gauge and re-pressurise via the filling loop if below ~1 bar
- Check for visible leaks around the boiler and radiators
Beyond these checks, do not open the unit or touch gas/electrical parts — BC law requires a licensed gas fitter. Call us for a proper diagnosis.
Error E119 usually leaves you without heat or hot water and can indicate a safety-related fault. Don't keep resetting it — call for priority after-hours Baxi repair.
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Parts often behind Baxi error E119
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Baxi Error E119 Repair Across Metro Vancouver
Frequently Asked Questions
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