: Restart the vacuum. If the code is gone, you are ready to continue cleaning. Common Triggers for E4

An on your Philips SpeedPro Max (or 8000 Series) cordless vacuum means that the roller brush is blocked and cannot turn freely .

If you have thoroughly cleaned the brush and the E4 code still appears:

Push the side cap back onto the roller until you hear a .

To resolve the error and get your vacuum running again, follow these steps provided by the official Philips support guide :

: Press the "easy button" on the side of the 360° suction nozzle or mini Turbo brush to release the roller. Clear Debris : Pull out any large clumps of dust, fluff, or dirt by hand.