Philips error codes and fault guides
Browse 10 published, evidence-gated Philips guides. Each page states the supported model and region, official source, safe checks, and the point to stop.
Philips fault guides
1–10 of 10
the NanoProtect HEPA filter needs replacement
A0 / AO is identified by Philips support as the NanoProtect HEPA filter needs replacement. Follow the official, model-scoped checks and service boundary below.
the NanoProtect activated-carbon filter needs replacement
C0 / CO is identified by Philips support as the NanoProtect activated-carbon filter needs replacement. Follow the official, model-scoped checks and service boundary below.
the appliance has detected a malfunction
E1 is identified by Philips support as the appliance has detected a malfunction. Follow the official, model-scoped checks and service boundary below.
the appliance has detected a malfunction
E2 is identified by Philips support as the appliance has detected a malfunction. Follow the official, model-scoped checks and service boundary below.
the appliance has detected a malfunction
E3 is identified by Philips support as the appliance has detected a malfunction. Follow the official, model-scoped checks and service boundary below.
the appliance has detected a malfunction
E4 is identified by Philips support as the appliance has detected a malfunction. Follow the official, model-scoped checks and service boundary below.
overheat protection has been triggered on AMF870 and AMF872
E6 is identified by Philips support as overheat protection has been triggered on AMF870 and AMF872. Follow the official, model-scoped checks and service boundary below.
the Hall sensor is not working correctly
Er is identified by Philips support as the Hall sensor is not working correctly. Follow the official, model-scoped checks and service boundary below.
the pre-filter needs cleaning and its timer needs resetting
F0 / FO is identified by Philips support as the pre-filter needs cleaning and its timer needs resetting. Follow the official, model-scoped checks and service boundary below.
the SmartAir Control sensor is measuring air quality during startup
Flashing red air-quality light is identified by Philips support as the SmartAir Control sensor is measuring air quality during startup. Follow the official, model-scoped checks and service boundary below.