Bosch Dishwasher Maintenance: How to Fix the E22 Error Code
Bosch Dishwasher Maintenance: How to Fix the E22 Error Code
December 15, 2025
Bosch Dishwasher
What You’ll Find in This Guide
Seeing the E22 error code on your Bosch dishwasher can interrupt your daily routine. This guide explains what the error means, why it happens, and how proper Bosch dishwasher maintenance can help you fix the issue and prevent it from coming back. With a few practical steps, you can restore proper drainage and keep your dishwasher running efficiently.
Regular care and maintenance play a major role in avoiding common Bosch dishwasher errors and extending the life of your appliance.
What Does the E22 Error Code Mean on a Bosch Dishwasher?
The E22 error code appears when water remains at the bottom of the dishwasher after a cycle ends. This usually indicates a drainage problem, meaning water is not exiting the unit as it should. The dishwasher displays this code to alert you that maintenance or troubleshooting is required.
Common Causes of the Bosch E22 Error
Most E22 errors are caused by restricted water flow due to blockages. Common causes include:
A clogged dishwasher filter
A blocked or kinked drain hose
Debris stuck in the drain pump
Spray arms obstructed by food particles
How to Fix the Bosch Dishwasher E22 Error
Step 1: Clean the Filter
The filter is often the main cause of the E22 error.
Locate the filter at the bottom of the dishwasher
Remove it carefully
Rinse under warm water and scrub away grease or debris
Reinstall securely before running another cycle
Step 2: Inspect the Drain Hose
Check the drain hose for bends, clogs, or improper installation. Straighten any kinks and flush the hose with water to clear blockages if needed.
Step 3: Check the Drain Pump
Small objects like food debris or broken glass can block the drain pump. Inspect the pump area and carefully remove any obstructions.
Step 4: Clean the Spray Arms
Blocked spray arm holes can affect water circulation and drainage. Remove the spray arms and clear the openings using a thin wire or needle.
Step 5: Reset the Dishwasher
Disconnect the dishwasher from power for about one minute, then reconnect and restart a cycle. This can clear temporary system errors.
If the E22 Error Doesn’t Go Away
If the error persists after basic Bosch dishwasher maintenance, the issue may involve:
A restricted water inlet valve
Household plumbing or sink drainage issues
A faulty control board or internal wiring
In these cases, professional diagnosis is recommended to avoid further damage.
How to Prevent Bosch Dishwasher E22 Errors
Preventive maintenance helps reduce future drainage problems:
Clean the filter monthly
Use dishwasher cleaner periodically
Remove excess food from dishes before loading
Address hard water buildup with proper treatment products
Keep Your Bosch Dishwasher Running Smoothly
The E22 error code is a common but manageable issue when addressed early. Consistent Bosch dishwasher maintenance and timely troubleshooting can prevent unexpected breakdowns and keep your appliance performing at its best.
If professional help is needed, Dishwasher Installer provides expert Bosch dishwasher repair and maintenance services to restore proper operation quickly and reliably.
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