E18 Bosch Washer Error Code

DIY

What does E18 mean?

United States

The drainage hose is blocked or kinked.

United Kingdom

A blockage in the filter/pump or a blockage or kink in the cold water inlet hose; the machine fails to start or continue a wash cycle.

Common causes

The manufacturer support page points to these conditions for this code:

  • A kinked, bent, or pinched hose
  • A blocked, kinked, or incorrectly installed drain hose or standpipe
  • Debris or a blockage in the water path

What to check first

  1. Unplug the machine;
  2. clean the drain pump via the service flap (drain residual water first, clean interior/thread/housing so the impeller turns);
  3. check the drain hose for kinks and clean it and the siphon connection;
  4. ensure the cold water inlet hose is not blocked or kinked.

Safety

  • Unplug the appliance before opening the filter, pump cover, or drain area, and expect water to come out.

When to call a professional

If the error persists after cleaning the pump and drain hose - book an engineer.

Official source

This explanation follows the manufacturer support page: Bosch Washer Error Codes.

If you see water on the floor, smell burning, or the official page says to call service, stop and contact the manufacturer or a qualified technician.