Low
P1, P2, P3, P1... on Worcester Bosch Greenstar R29 40 HE

Your boiler is simply performing a routine startup sequence and is not currently experiencing a fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Please wait, initialisation in progress.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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