E20
Philips Mop Module Detection / Pump Fault

Robot vacuum displays E20; app may say 'Mop module error' on hybrid vacuum-mop Philips models.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Mop water tank not installed correctly, Faulty mop module detection switch, Blocked water pump, Failed water pump motor

How to Fix / Troubleshooting

Safety first: Turn OFF the robot and remove the mop water tank. Avoid spilling water into the robot body.

  • Check tank installation: Reinstall the mop tank firmly until it clicks. Ensure the mop cloth plate is attached correctly.
  • Inspect seals and connectors: Check the tank's rubber seals and any electrical contacts for damage or dirt. Clean and dry them as needed.
  • Prime the pump: Fill the tank with clean water, reinstall it, and start a mop mode. Listen for the pump. If it is very loud or silent and no water flows, there may be a blockage.
  • Clean water outlets: Remove the mop cloth and inspect the water outlet holes for clogs. Clear them gently with a pin or soft brush.
  • Persistent E20: If the robot still reports a mop module error, the detection switch or pump motor may be faulty and should be serviced or replaced.
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Repair Difficulty

Medium 3/5

Required Part

Mop Water Tank & Pump Assembly
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