E119 High
Your boiler has switched itself off because the water pressure in the system has dropped too low to operate safely.
Technical description: low water pressure error
Typical repair cost: £0-120 (including labour)
DIY fix possible
Locate the filling loop (usually a silver flexible hose) underneath your boiler.Slowly open the small tap(s) on the loop until you hear water entering the system.Watch the pressure gauge and close the taps once the needle reaches between 1.0 and 1.5 bar.Check that the error code has cleared; you may need to press 'Reset'.
Protect yourself from future repair bills
A boiler cover plan would cover faults like E119 — no call-out fees, no surprises.
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Parts commonly replaced
- Filling loop
- Expansion vessel
- Pressure relief valve
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