Low water pressure High
Your boiler has stopped working because there isn't enough water circulating in the system to operate safely.
Technical description: Increase system pressure to 1.5 bar
Typical repair cost: £0-120 (including labour)
DIY fix possible
Locate the filling loop (usually two blue or black levers) underneath your boiler or on the nearby pipework.Slowly open both taps until you hear water entering the system and watch the pressure gauge needle move.Close both taps tightly once the pressure gauge reaches 1.5 bar, then restart your boiler.
Protect yourself from future repair bills
A boiler cover plan would cover faults like Low water pressure — no call-out fees, no surprises.
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Parts commonly replaced
- Filling loop
- Pressure sensor
- Expansion vessel
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