BoilerFaultCodesWhat the manual says
Manufacturer manualSystem pressure check (example value 1.5 bar). Control display warns if system pressure falls below 0.5 bar.
From this model's manual
Verified against the Potterton Powermax He installation & service manual.
DIY fix possible
No action is required as this is a status update, not a fault.If the reading drops below 0.5 bar, you may need to top up the system pressure using the filling loop.Check your user manual for the location of your external filling loop if the pressure falls in the future.
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