BoilerFaultCodesWhat the manual says
Manufacturer manualFaulty primary circuit (no water or absence of flow)
From this model's manual
Verified against the Biasi/Biasi Biasi Parva He M96 24sm 28sm 32sm P Installation Servicing Instructions Manual installation & service manual.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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All 10 fault codes on the Parva HE Combi
Seeing a different code? Every code this model can display, in one place.
Excessive temperature on primary circuitFaulty air pressure switchFaulty c.h. temperature probe NTCFaulty d.h.w temperature probe NTCFaulty flue temperature probe NTCFlue temperature probe NTC lockoutLack of burner ignitionLack of power supply or faulty electr. control p.c.b.Safety thermostat lockout