Low
P2 on Worcester Bosch Greenstar ZWB7

Your boiler is currently going through its internal start-up process, so please wait a few moments for it to finish booting up.

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.

What the manual says

Manufacturer manual

Please wait, initialisation in progress.

From this model's manual
Verified against the Worcester Bosch Greenstar Zwb7 installation & service manual, page 43.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Wait 5 to 10 minutes for the boiler to complete its self-testIf the code persists, perform a soft reset by pressing the reset button onceIf it still does not clear, switch the boiler off at the fused spur for 30 seconds and switch it back on

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