E44 High
Your boiler has detected that the water pressure in the system is too low to operate safely, which has caused it to switch itself off.
Technical description: Low water pressure
Typical repair cost: £0-120 (including labour)
DIY fix possible
Locate the filling loop (usually a flexible silver hose) underneath or near the boiler.Slowly open the small tap or taps on the filling loop until you hear water flowing.Watch the pressure gauge and close the taps once the needle reaches between 1.0 and 1.5 bar.Restart the boiler to clear the fault code.
Protect yourself from future repair bills
A boiler cover plan would cover faults like E44 — no call-out fees, no surprises.
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Parts commonly replaced
- Filling loop
- Pressure sensor
- Expansion vessel
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