BoilerFaultCodesZanussi P7 Fault Code
The Zanussi P7 fault code means: your boiler is displaying a configuration setting rather than a breakdown, indicating the internal pump is set to its standard minimum operating speed.. It appears on 1 Zanussi model in our database.
Technical description: To set the minimum CH pump speed to 70% (default)
What causes the Zanussi P7 fault?
This code appears when the boiler is being programmed to its standard factory setting for how fast the internal pump should circulate water. It is not an error or a component failure, but rather a confirmation that the pump will run at a minimum of 70% speed during heating cycles. You will usually only see this during commission or if someone has been adjusting the installer settings.
DIY fix possible
Press the 'Mode' or 'Reset' button to return the screen to the standard temperature displayObserve if the code disappears and the boiler operates normallyNo further action is required if heating and hot water are functioning
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Zanussi models that show the P7 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Zanussi P7 fault code information on this page is sourced and cross-checked against the official Zanussi service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026