Medium
H07 on Worcester Bosch Junior 24i

Your boiler's water pressure has dropped too low, which is preventing it from providing full heating and hot water.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

The current water pressure is too low, limiting the performance in heat mode as well as domestic hot water (DHW) mode

DIY fix possible

Locate the filling link (internal or external flexible hose) underneath the boilerOpen the valves slowly to allow water into the system while watching the pressure gaugeClose valves once the needle reaches 1.5 bar and ensure the boiler is reset

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Related fault codes

E9View →CE 207View →A1View →

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