If your Bosch washing machine displays the E18 error code, it means the washer is not draining water properly. This is a common issue and is often caused by a blockage or restriction in the drainage system.
In many cases, the problem can be fixed at home.
What Does Bosch Washing Machine Error Code E18 Mean?
The E18 error code indicates a drainage fault. The washing machine is unable to pump water out of the drum within the expected time.
This may occur when:
- Water remains in the drum after washing
- The washer stops before the spin cycle
- The cycle takes unusually long to complete
Common Causes of Bosch E18 Error Code
- Clogged drain pump filter
- Blocked or kinked drain hose
- Debris lodged in the drain pump
- Excess detergent causing heavy suds
- Faulty drain pump
How to Fix Bosch Washing Machine Error Code E18
Step 1: Turn Off Power and Prepare to Drain
Unplug the washing machine. Place towels and a shallow container near the drain filter to catch any water.
Step 2: Clean the Drain Pump Filter
Open the lower access panel. Carefully remove the drain filter and clean out lint, coins, hair, or debris. Rinse the filter and reinstall it securely.
Step 3: Inspect the Drain Hose
Check the drain hose for bends, kinks, or blockages. Remove and flush it with water if necessary.
Step 4: Reduce Detergent Use
Too much detergent can cause excessive foam, which interferes with drainage. Use the correct amount of HE detergent.
Step 5: Run a Drain or Spin Cycle
Plug the washer back in and run a drain or spin cycle to confirm the error has cleared.
Can You Keep Using the Washer With an E18 Error?
No. Operating the washer with standing water can:
- Damage the drain pump
- Cause leaks
- Lead to unpleasant odors or mold
Fix the issue before using the washer again.
How to Prevent Bosch E18 Error Code in the Future
- Clean the drain filter regularly
- Check pockets before washing
- Use the correct detergent and dosage
- Avoid washing heavily soiled items without pre-rinsing
When to Call a Technician
Call a professional if:
- The washer does not drain at all
- The error returns immediately after cleaning
- You hear grinding or humming noises from the pump
These may indicate a failed drain pump.
Summary
More Bosch appliance error code guides
If you’re troubleshooting other Bosch appliances, these guides may also help: