Low
P1, P2, P3 on Worcester Bosch Greenstar 25i (ZWB 7-25)

Your boiler is currently just running a quick internal startup routine, so please leave it alone for a few moments to see if it clears itself.

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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