Philips AC4220/12 Error Code E1: Meaning & Fix

E1 is a motor malfunction code on the Philips AC4220/12 (AC4220/AC4221 family). The user manual indicates the motor has malfunctioned and Philips advises contacting Consumer Care for this error.

• E1 appears on the display.
• The purifier may stop running or show little or no airflow when the fault is detected.

• Motor malfunction detected by the unit.
• Internal motor or drive fault that requires service.

1. 1
   Confirm both filters are installed correctly and all packaging is removed.

   ExpectedFilters are seated and unobstructed.
2. 2
   Make sure the air inlet and outlet are not blocked and the unit has clearance around it.

   ExpectedAirflow path is clear.
3. 3
   Reattach the front cover securely; the unit may stop if the cover is not seated.

   ExpectedCover is properly installed.
4. 4
   Power off for 1 minute, then restart. If E1 persists, contact Philips support for service.

   ExpectedService path initiated.

   Continue →

• Leaving packaging on the filters or not seating filters correctly.
• Not reinstalling the front cover securely after checking filters.
• Continuing to run the purifier despite an E1 malfunction code instead of contacting support.

• Do not open the motor housing or attempt internal repairs; contact Philips service.
• Do not block the air inlet or outlet or operate without filters installed and packaging removed.

• Unplug the purifier before cleaning or handling filters.
• If you notice abnormal noise, vibration, or a burnt smell, stop use and contact service.

Contact Philips Consumer Care or After-Sale Service if E1 appears or returns after the checks above, since E1 indicates a motor malfunction.

• Install filters correctly and remove all packaging before use.
• Keep the air inlet and outlet clear of obstructions.
• Replace filters when due and reset the filter lifetime counter.