Bosch Dishwasher E22 Error Code: Blocked Filter Causes and Fixes

Standing water near the filter and E22 on the display can bring dishwashing to a halt. The Bosch dishwasher E22 error code often starts with food or grease trapped in the filter system. What should you make of a tap symbol beside it? The supply tap is not automatically the cause.

Cleaning may solve the problem before you need to buy a part. Work through the filter, sump, pump cover, and drain path below. The reset and pump checks will help you judge what a humming sound means and whether the next step is more cleaning, a replacement pump, or service.

Quick Facts

Use these details to plan the work:

• Difficulty: Easy
• Time: 15 to 20 minutes for a filter and pump cover clean, 45 to 60 minutes for a drain pump swap
• Tools: Soft brush, towel, flashlight, Torx T20 driver, pliers
• Part cost: $0 to $110
• Skill level: Beginner for cleaning, intermediate for pump replacement

What Does the E22 Error Code Mean on a Bosch Dishwasher?

E22 means the control has detected a blocked filter or water that is not clearing the sump properly. The sump is the low area that collects water beneath the filter.

The warning may appear with these symptoms.

• A paused wash cycle
• Water left near the filter
• A lit tap symbol
• Slow or incomplete draining

Why Does My Bosch Dishwasher Show E22 With a Water Tap Symbol?

The tap symbol is a water-status indicator and can appear with both fill and drain faults. With E22, focus first on a filter or drain restriction rather than assuming that the supply valve has failed.

Keep these points in mind.

• The symbol alone does not identify a part.
• The E22 code narrows the fault toward the filter and drain path.
• Standing water supports a drain concern.
• Normal draining with a repeated warning needs further diagnosis.

What Causes a Bosch Dishwasher to Show E22?

Food on the micro filter or debris beneath the coarse filter can slow the water path. A pump obstruction, kinked drain hose, blocked disposal connection, or failed pump can also leave water behind.

Work from the simplest restriction toward the pump.

How Do I Clean the Bosch Dishwasher Filter to Clear an E22 Error?

Follow these steps to clean the filter before buying a drain part.

1. Disconnect power and remove the lower rack.
2. Turn the cylindrical filter counterclockwise and lift it out.
3. Separate the micro and coarse filter sections.
4. Rinse them with hot water and a soft brush.
5. Wipe accessible debris from the sump without reaching blindly for sharp objects.
6. Refit and lock the filter into position.

An unlocked filter can let debris pass or sit incorrectly. A Bosch dishwasher E22 error code that returns quickly after cleaning may mean residue remains below the filter, the cover is not seated, or the drain path is still restricted.

How Do I Reset a Bosch Dishwasher After an E22 Error?

Follow these steps after clearing the restriction.

1. Hold Start for 3 seconds to cancel and drain.
2. Switch off the dishwasher breaker for 5 minutes.
3. Restore power and run a rinse cycle.
4. Confirm that the cycle drains without leaving a pool in the sump area.

Do not treat a cleared display as proof that the drain works. The useful result is a finished cycle with normal water removal. Stop and assess a leak if water appears beneath the machine.

How to Fix a Bosch E22 Error Step by Step

Follow these steps to clean the filter and check for remaining drain restrictions.

Phase 1: Cut Power and Bail the Standing Water

1. Disconnect power.
2. Close the water supply.
3. Remove the lower rack and, if needed for access, the lower spray arm.
4. Align the filter arrows by turning counterclockwise.
5. Lift out the filter and screen.

Phase 2: Remove and Clean the Filter Assembly

1. Separate the filter and screen.
2. Brush away debris.
3. Soak both pieces in hot, soapy water.
4. Let both dry thoroughly.
5. Push the filter back onto the screen.
6. Seat the assembly.
7. Turn clockwise until its arrows align.
8. Refit any removed lower spray arm.
9. Return the rack.
10. Restore power and water.
11. Check for E22; assess the control last only if draining is normal.

Phase 3: Open the Drain Pump Cover and Clear the Impeller

1. Disconnect power before returning to the sump.
2. Open the drain pump cover and clear accessible debris from the impeller area.
3. Refit the cover securely before testing.

Phase 4: Check the Drain Hose and Run a Test Cycle

1. Check the drain hose and sink connection for a kink or blockage.
2. Run a test cycle after reassembly and confirm normal draining.

Protect your hands from glass and other sharp debris. Do not reach into a powered pump or run the dishwasher with covers removed. If access is unclear, stop at filter cleaning and arrange service.

Should You Clean the Filter or Replace the Drain Pump?

Filter cleaning is the first choice when residue is the only problem. Consider pump replacement only after the filter, cover, hose, and sink connection have been cleared.

Compare these options.

• Filter cleaning, $0: Plan a thorough clean every 2 to 4 weeks, with loose food removed more often as needed.
• Drain pump, $50 to $110: Appropriate for confirmed pump damage, such as a cracked impeller, or a failed pump after obstructions are ruled out.
• Service: Appropriate when the base pan contains water, access is unsafe, or the warning remains despite normal draining.

Match any pump to the complete model number. A Bosch dishwasher E22 error code does not identify the correct replacement by itself.

FAQ

What Does E22 Mean on a Bosch Washing Machine?

Do not apply this dishwasher filter procedure to a washing machine. Confirm the washer’s full model and its own code information, since its water system and checks are different.

When Should I Call a Technician for a Bosch Dishwasher E22 Error?

Call when water is in the base pan, the pump cover cannot be reached safely, or E22 returns while the dishwasher drains normally. Electrical pump and control faults need evidence beyond a dirty-filter diagnosis.

Why Does E22 Return a Week After Cleaning the Filter?

Residue may remain beneath the filter, or new food debris may build up quickly. A restricted hose, loose cover, or damaged pump can also remain after the mesh is clean.

A Clear Sump and a Finished Cycle

A clean filter and a clear drain path often restore normal operation without a new part. Use the actual drain result to choose the next step for a Bosch dishwasher E22 error code, then confirm any replacement by model.

Cleaned the filter and pump cover and the E22 still returns with a humming drain pump? Look up the exact drain pump for your Bosch model number and order the replacement before the next load.