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Bosch Washing Machine

Bosch Washing Machine E18 error

Water not draining

You can usually fix itCross-checked from 2+ sources

Most people can clear this with the simple steps below.

Also shown as: F18

What it means

Water did not drain out in the expected time.

Common causes

  • Drain hose bent, blocked or placed too high
  • Drain/pump filter clogged with lint, coins or hair
  • Faulty drain pump

Try this at home first

Tick each step as you go

When to call a technician

If the pump hums or stays silent and the code repeats, the drain pump may need replacement.

Safety first

Always switch off at the wall socket or MCB before touching any part. Do not open the outdoor unit, control boards or gas pipes yourself — they carry high voltage and pressure.

Frequently asked questions

What does E18 mean on a Bosch Washing Machine?

Water not draining. Water did not drain out in the expected time.

Can I fix Bosch Washing Machine error E18 myself?

Usually yes. Start with: Switch off and unplug.

Is it safe to keep using the Washing Machine with E18?

Yes, once the cause is fixed.

Other Bosch Washing Machine codes

E16 Door / lid not closed or not locking E17 Water not filling / water supply problem E19 Heating fault E21 Motor / drum rotation fault E23 Water leak detected E29 Water not filling / water supply problem

All Bosch Washing Machine error codes

Same code on other brands

F18 Low gas / refrigerant leak or blockagePanasonic AC E18 Water not filling / water supply problemBosch Dishwasher

Sources

We write every explanation in our own words from these references.

Last checked: 2026-10-20