High
Main burner will not light on Worcester Bosch WR325 RSF

Your boiler is failing to ignite the flame needed to heat your water, which could be caused by blocked gas flow or a worn internal component.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Gas pressure low, Gas service cock partially closed, Low water rate, Water section diaphragm faulty, or Gas valve faulty

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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