f18
Moderate
Bosch · Washing Machines
Drainage issue / pump time exceeded
Quick Answer
Error code F18 on your Bosch Washing Machines means: Drainage issue / pump time exceeded. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Open the drain pump filter access panel and clean the filter.
2
Check and clear any blockages in the drain hose.
3
Inspect the pump impeller for foreign objects.
4
If the drain pump motor is faulty, replace the drain pump.
5
Reduce detergent usage to prevent suds buildup.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Drain pump
Drain hose
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