Bosch Washing Machine Error Code E18
Drain time exceeded — water not draining within expected time
The Bosch washing machine cannot drain water within the allowed time. This halts the cycle and leaves water in the drum.
What Does Error Code E18 Mean on a Bosch Washing Machine?
Drain time exceeded — water not draining within expected time.
The Bosch washing machine cannot drain water within the allowed time. This halts the cycle and leaves water in the drum.
What Causes Error Code E18?
Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:
- 1 Clogged drain pump filter 50% of cases
- 2 Kinked or blocked drain hose 25% of cases
- 3 Blocked household standpipe 15% of cases
- 4 Drain pump motor failure 10% of cases
How to Fix Bosch Washing Machine Error Code E18
- 1
Clean the drain pump filter
The filter is behind the lower-front service flap. Turn cap slowly to drain water, remove and clean filter.
⚠️ Have towels ready — significant water will drain. - 2
Check drain hose
Inspect hose for kinks from back of machine to standpipe.
- 3
Check standpipe
Pour water directly into standpipe. If it backs up, clear the household drain.
- 4
Test drain pump
If filter is clear and hose is good, pump motor may have failed.
🔩 Bosch drain pump ($50–$100)
How to Reset Error Code E18
After clearing blockage, press the pause/cancel button to reset, then restart cycle.
Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.
When to Call a Professional
If drain pump is replaced and E18 persists, control board drain relay needs testing.
Find Replacement Parts
Use these links to find the exact replacement parts for your Bosch Washing Machine:
External links — ApplianceErrors.com is not affiliated with these retailers.