Category: Dishwasher

How to Fix Bosch Dishwasher Error E20
Error Code: E20 Difficulty: Hard

Problem: Heat pump internal heater error.

How to Fix E20 Error (Step-by-Step)
1. Turn off the power to the dishwasher at the main circuit breaker to ensure safety.
2. Shut off the water supply and disconnect the drain and supply lines from the appliance.
3. Carefully pull the dishwasher out of its cabinet. You may need to lay it on its back on a protective towel to access the bottom components.
4. Locate the main pump (also called a heat pump or circulation pump) and the main control module.
5. Methodically disconnect the wiring harnesses and hoses attached to the pump. Take photos beforehand to remember the connections.
6. Unbolt and remove the old pump. At the same time, locate and replace the control module, carefully transferring each wire connector to the new board.
7. Install the new main pump, ensuring all hose clamps and electrical connections are secure. Set the dishwasher upright, reconnect utilities, and run a test cycle.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Parts to Check

No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.

Bosch dishwasher water inlet valve

Common replacement category: Water inlet valve

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked.

Search Amazon for Bosch dishwasher water inlet valve

Bosch dishwasher drain pump

Common replacement category: Drain pump

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked.

Search Amazon for Bosch dishwasher drain pump

Bosch dishwasher circulation pump

Common replacement category: Circulation pump / wash motor

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.

Search Amazon for Bosch dishwasher circulation pump

Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Ask a Technician Online – Get Answer in Minutes
Find a Local Repair Pro Near You
When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
Built-In Dishwashers

Standard 24-Inch Models

Common under-counter replacement size

Check height, width, and toe-kick clearance

Match hardwire or cord connection requirements

Shop Built-In Dishwashers

Compact Options

18-Inch and Small-Space Models

Useful for narrow cabinets

Confirm ADA or compact dimensions

Verify panel and handle clearance

Compare Compact Dishwashers

Portable and Countertop

No Built-In Cabinet Cutout

Good for rentals or limited cabinets

Confirm faucet adapter compatibility

Measure counter or storage space

View Portable Dishwashers
As an Amazon Associate, we earn from qualifying purchases.
April 9, 2026
How to Fix Bosch Dishwasher Error E21
Error Code: E21 Difficulty: Hard

Problem: Blocked heat pump.

How to Fix E21 Error (Step-by-Step)
1. Cut all power to the dishwasher by switching off the corresponding circuit breaker.
2. Turn off the hot water supply valve under the sink.
3. Gently slide the dishwasher out from its installed position. It’s best to place it on its back on a soft blanket or cardboard to access the underside.
4. Identify the circulation pump, which is a large motor and housing assembly near the center.
5. Disconnect the electrical wires leading to the pump and detach the inlet and outlet hoses. Have a shallow pan and towels ready for water that will drain out.
6. Remove the screws or release the tabs that mount the pump to the dishwasher’s sump assembly and remove the old pump.
7. Mount the new circulation pump, reattach the hoses and wiring, and carefully return the dishwasher to its upright position before reinstalling and testing.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.
What to Check Next on This Bosch Dishwasher

E21: E21 is a wash/circulation path on many Bosch dishwasher fault lists. Look for blocked movement before replacing the pump.
1. Remove and clean the filter, then inspect the sump for glass, labels, or debris that could block the impeller area.
2. Check that spray arms spin freely and are not clogged, then run a short cycle and listen for strong circulation.
3. If circulation is weak after cleaning, inspect the circulation pump, capacitor where used, wiring, and control feed.
If the symptom returns after these checks, use the full Bosch model number from the door tag before ordering any part. The same display message can point to different parts depending on the exact model and what the dishwasher does during fill, wash, drain, or dry.
Recommended Parts to Check

No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.

Bosch dishwasher water inlet valve

Common replacement category: Water inlet valve

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked.

Search Amazon for Bosch dishwasher water inlet valve

Bosch dishwasher drain pump

Common replacement category: Drain pump

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked.

Search Amazon for Bosch dishwasher drain pump

Bosch dishwasher circulation pump

Common replacement category: Circulation pump / wash motor

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.

Search Amazon for Bosch dishwasher circulation pump

Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Ask a Technician Online – Get Answer in Minutes
Find a Local Repair Pro Near You
When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
Built-In Dishwashers

Standard 24-Inch Models

Common under-counter replacement size

Check height, width, and toe-kick clearance

Match hardwire or cord connection requirements

Shop Built-In Dishwashers

Compact Options

18-Inch and Small-Space Models

Useful for narrow cabinets

Confirm ADA or compact dimensions

Verify panel and handle clearance

Compare Compact Dishwashers

Portable and Countertop

No Built-In Cabinet Cutout

Good for rentals or limited cabinets

Confirm faucet adapter compatibility

Measure counter or storage space

View Portable Dishwashers
As an Amazon Associate, we earn from qualifying purchases.
April 9, 2026
How to Fix Bosch Dishwasher Error E19
Error Code: E19 Difficulty: Hard

Problem: Detergent dispenser solenoid circuit error.

How to Fix E19 Error (Step-by-Step)
1. Disconnect the dishwasher from its power source by turning off the circuit breaker and shut off the water supply valve, usually located under the sink.
2. Carefully slide the dishwasher out from under the counter to access its sides and back.
3. Remove the outer side panels and the base panel at the bottom front to expose the internal components.
4. Locate the heat exchanger assembly on the side of the unit and identify the outlet valve connected to it.
5. Unplug the electrical connector from the valve solenoid and carefully detach the connected hoses, being prepared for some residual water to spill.
6. Remove the old valve, which may be held by clips or screws, and install the new heat exchanger outlet valve in its place.
7. Reconnect the hoses and electrical connector, reassemble the panels, slide the dishwasher back into place, and restore power and water to test the repair.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Parts to Check

No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.

Bosch dishwasher water inlet valve

Common replacement category: Water inlet valve

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked.

Search Amazon for Bosch dishwasher water inlet valve

Bosch dishwasher drain pump

Common replacement category: Drain pump

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked.

Search Amazon for Bosch dishwasher drain pump

Bosch dishwasher circulation pump

Common replacement category: Circulation pump / wash motor

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.

Search Amazon for Bosch dishwasher circulation pump

Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Ask a Technician Online – Get Answer in Minutes
Find a Local Repair Pro Near You
When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
Built-In Dishwashers

Standard 24-Inch Models

Common under-counter replacement size

Check height, width, and toe-kick clearance

Match hardwire or cord connection requirements

Shop Built-In Dishwashers

Compact Options

18-Inch and Small-Space Models

Useful for narrow cabinets

Confirm ADA or compact dimensions

Verify panel and handle clearance

Compare Compact Dishwashers

Portable and Countertop

No Built-In Cabinet Cutout

Good for rentals or limited cabinets

Confirm faucet adapter compatibility

Measure counter or storage space

View Portable Dishwashers
As an Amazon Associate, we earn from qualifying purchases.
April 9, 2026
How to Fix Bosch Dishwasher Error E12
Error Code: E12 Difficulty: Easy

Problem: Limescale build-up in the heat pump.

How to Fix E12 Error (Step-by-Step)
1. Run a cleaning cycle with a dishwasher-specific descaling product and confirm the error stays cleared during a full test cycle.
2. Pour the descaler directly into the bottom of the empty dishwasher.
3. Select the hottest and longest wash cycle available on your dishwasher.
4. Allow the cycle to run completely without interruption and confirm the error stays cleared during a full test cycle.
5. For heavy buildup, a second treatment may be necessary and confirm the error stays cleared during a full test cycle.
6. Regularly use a descaler every 1-3 months to prevent future limescale accumulation.
7. Ensure your water softener (if you have one) is functioning correctly and filled with salt.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.
What to Check Next on This Bosch Dishwasher

Bosch Dishwasher Error E12: Use the code, light, or symbol as the starting clue, then confirm what the dishwasher actually does before ordering parts.
1. 1. Turn power off before opening panels, reaching into the sump, touching wiring, or checking the pump, heater, valve, sensor, latch, or control area.
2. 2. Confirm whether the display is a normal cycle/status symbol or a recurring fault that interrupts filling, washing, draining, drying, locking, or control response.
3. 3. Start with the heat and temperature path: water circulation, heater circuit, NTC sensor, wiring, and control output.
4. 4. Clean the filter and sump, check spray-arm movement, verify water supply, inspect the drain hose and sink connection, and correct any visible blockage before replacing parts.
5. 5. Run a short test cycle and watch where it fails; the exact stage matters more than the displayed word or symbol by itself.
6. 6. Replace a part only after the same symptom repeats and the model-specific checks point to that part category. Match any replacement to the complete Bosch model number on the door tag.
If the issue returns after these checks, match replacement parts to the complete Bosch dishwasher model number from the door tag. The same display clue can point to different components depending on the exact model and when the failure appears.
Recommended Parts to Check

No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.

Bosch dishwasher water inlet valve

Common replacement category: Water inlet valve

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked.

Search Amazon for Bosch dishwasher water inlet valve

Bosch dishwasher drain pump

Common replacement category: Drain pump

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked.

Search Amazon for Bosch dishwasher drain pump

Bosch dishwasher circulation pump

Common replacement category: Circulation pump / wash motor

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.

Search Amazon for Bosch dishwasher circulation pump

Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Ask a Technician Online – Get Answer in Minutes
Find a Local Repair Pro Near You
When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
Built-In Dishwashers

Standard 24-Inch Models

Common under-counter replacement size

Check height, width, and toe-kick clearance

Match hardwire or cord connection requirements

Shop Built-In Dishwashers

Compact Options

18-Inch and Small-Space Models

Useful for narrow cabinets

Confirm ADA or compact dimensions

Verify panel and handle clearance

Compare Compact Dishwashers

Portable and Countertop

No Built-In Cabinet Cutout

Good for rentals or limited cabinets

Confirm faucet adapter compatibility

Measure counter or storage space

View Portable Dishwashers
As an Amazon Associate, we earn from qualifying purchases.
April 9, 2026
How to Fix Bosch Dishwasher Error E10
Error Code: E10 Difficulty: Easy

Problem: Zeolite (CrystalDry) chamber heater fault.

How to Fix E10 Error (Step-by-Step)
1. Disconnect the dishwasher from the power supply and confirm the error stays cleared during a full test cycle.
2. Open the dishwasher door and locate the Zeolite container, usually at the bottom.
3. Carefully remove the lower rack to get better access and confirm the error stays cleared during a full test cycle.
4. Inspect the heating element within the Zeolite chamber for any visible signs of damage or disconnection.
5. If a wire is loose, reconnect it securely and confirm the error stays cleared during a full test cycle.
6. If the element appears damaged, it will need to be replaced.
7. Reassemble and restore power to see if the error is cleared.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Parts to Check

No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.

Bosch dishwasher water inlet valve

Common replacement category: Water inlet valve

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked.

Search Amazon for Bosch dishwasher water inlet valve

Bosch dishwasher drain pump

Common replacement category: Drain pump

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked.

Search Amazon for Bosch dishwasher drain pump

Bosch dishwasher circulation pump

Common replacement category: Circulation pump / wash motor

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.

Search Amazon for Bosch dishwasher circulation pump

Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Ask a Technician Online – Get Answer in Minutes
Find a Local Repair Pro Near You
When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
Built-In Dishwashers

Standard 24-Inch Models

Common under-counter replacement size

Check height, width, and toe-kick clearance

Match hardwire or cord connection requirements

Shop Built-In Dishwashers

Compact Options

18-Inch and Small-Space Models

Useful for narrow cabinets

Confirm ADA or compact dimensions

Verify panel and handle clearance

Compare Compact Dishwashers

Portable and Countertop

No Built-In Cabinet Cutout

Good for rentals or limited cabinets

Confirm faucet adapter compatibility

Measure counter or storage space

View Portable Dishwashers
As an Amazon Associate, we earn from qualifying purchases.
April 9, 2026
How to Fix Bosch Dishwasher Error E06
Error Code: E06 Difficulty: Hard

Problem: Door sensor circuit fault.

How to Fix E06 Error (Step-by-Step)
1. Disconnect the dishwasher from power at the circuit breaker and confirm the error stays cleared during a full test cycle.
2. Open the dishwasher door and remove the Torx screws that hold the inner and outer door panels together.
3. Separate the outer door panel to get access to the door latch assembly at the top of the door.
4. Disconnect the wire harness connected to the microswitch on the latch.
5. Remove the screws holding the old door latch assembly in place and remove it.
6. Install the new door latch assembly, making sure to secure it with the screws and reconnect the wire harness.
7. Reassemble the door panels, restore power, and test the dishwasher by starting a cycle to ensure it locks and runs correctly.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Parts to Check

No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.

Bosch dishwasher water inlet valve

Common replacement category: Water inlet valve

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked.

Search Amazon for Bosch dishwasher water inlet valve

Bosch dishwasher drain pump

Common replacement category: Drain pump

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked.

Search Amazon for Bosch dishwasher drain pump

Bosch dishwasher circulation pump

Common replacement category: Circulation pump / wash motor

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.

Search Amazon for Bosch dishwasher circulation pump

Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Ask a Technician Online – Get Answer in Minutes
Find a Local Repair Pro Near You
When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
Built-In Dishwashers

Standard 24-Inch Models

Common under-counter replacement size

Check height, width, and toe-kick clearance

Match hardwire or cord connection requirements

Shop Built-In Dishwashers

Compact Options

18-Inch and Small-Space Models

Useful for narrow cabinets

Confirm ADA or compact dimensions

Verify panel and handle clearance

Compare Compact Dishwashers

Portable and Countertop

No Built-In Cabinet Cutout

Good for rentals or limited cabinets

Confirm faucet adapter compatibility

Measure counter or storage space

View Portable Dishwashers
As an Amazon Associate, we earn from qualifying purchases.
April 9, 2026
How to Fix Bosch Dishwasher Error E07
Error Code: E07 Difficulty: Hard

Problem: Zeolite (CrystalDry) fan motor fault.

How to Fix E07 Error (Step-by-Step)
1. Disconnect the dishwasher from power and water supplies and confirm the error stays cleared during a full test cycle.
2. Carefully pull the dishwasher out from under the counter and confirm the error stays cleared during a full test cycle.
3. Locate and remove the side and top panels to access the internal components.
4. Identify the drying fan assembly, which is typically located at the base of the dishwasher.
5. Disconnect the wiring harness and any mounting screws securing the old fan.
6. Install the new drying fan assembly, ensuring all connections are secure.
7. Reassemble the dishwasher panels, slide it back into place, and reconnect power and water.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Parts to Check

No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.

Bosch dishwasher water inlet valve

Common replacement category: Water inlet valve

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked.

Search Amazon for Bosch dishwasher water inlet valve

Bosch dishwasher drain pump

Common replacement category: Drain pump

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked.

Search Amazon for Bosch dishwasher drain pump

Bosch dishwasher circulation pump

Common replacement category: Circulation pump / wash motor

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.

Search Amazon for Bosch dishwasher circulation pump

Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Ask a Technician Online – Get Answer in Minutes
Find a Local Repair Pro Near You
When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
Built-In Dishwashers

Standard 24-Inch Models

Common under-counter replacement size

Check height, width, and toe-kick clearance

Match hardwire or cord connection requirements

Shop Built-In Dishwashers

Compact Options

18-Inch and Small-Space Models

Useful for narrow cabinets

Confirm ADA or compact dimensions

Verify panel and handle clearance

Compare Compact Dishwashers

Portable and Countertop

No Built-In Cabinet Cutout

Good for rentals or limited cabinets

Confirm faucet adapter compatibility

Measure counter or storage space

View Portable Dishwashers
As an Amazon Associate, we earn from qualifying purchases.
April 9, 2026
How to Fix Bosch Dishwasher Error E03
Error Code: E03 Difficulty: Hard

Problem: Main control board relay fault.

How to Fix E03 Error (Step-by-Step)
1. Shut off the power and water supply to the dishwasher.
2. The water inlet valve is usually located at the bottom front of the dishwasher, behind the lower access panel. Remove the panel to access it.
3. Disconnect the water supply line and the outlet hose from the valve. Have a towel ready for any residual water.
4. Disconnect the wire harness from the valve. Remove the screws holding the valve in place and take it out.
5. Install the new water inlet valve, ensuring all connections are tight. If the issue persists, replace the main control board by removing the door panel to access it.
6. Reconnect all wiring to the new control board based on your previous photos.
7. Reassemble everything, turn the power and water back on, and run a test cycle.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Parts to Check

No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.

Bosch dishwasher water inlet valve

Common replacement category: Water inlet valve

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked.

Search Amazon for Bosch dishwasher water inlet valve

Bosch dishwasher drain pump

Common replacement category: Drain pump

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked.

Search Amazon for Bosch dishwasher drain pump

Bosch dishwasher circulation pump

Common replacement category: Circulation pump / wash motor

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.

Search Amazon for Bosch dishwasher circulation pump

Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Ask a Technician Online – Get Answer in Minutes
Find a Local Repair Pro Near You
When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
Built-In Dishwashers

Standard 24-Inch Models

Common under-counter replacement size

Check height, width, and toe-kick clearance

Match hardwire or cord connection requirements

Shop Built-In Dishwashers

Compact Options

18-Inch and Small-Space Models

Useful for narrow cabinets

Confirm ADA or compact dimensions

Verify panel and handle clearance

Compare Compact Dishwashers

Portable and Countertop

No Built-In Cabinet Cutout

Good for rentals or limited cabinets

Confirm faucet adapter compatibility

Measure counter or storage space

View Portable Dishwashers
As an Amazon Associate, we earn from qualifying purchases.
April 9, 2026
How to Fix Bosch Dishwasher Error E01
Error Code: E01 Difficulty: Hard

Problem: Heat pump motor circuit fault at the main control board.

How to Fix E01 Error (Step-by-Step)
1. Disconnect the dishwasher from power by turning off the circuit breaker.
2. To access the control board, you will likely need to remove the outer door panel by unscrewing the Torx screws around the inner door perimeter.
3. Carefully detach the control panel from the door, paying attention to the wire harnesses connected to it.
4. Take a photo of the wire connections before disconnecting them from the old control board.
5. Gently disconnect the wires and remove the old control board.
6. Install the new control board, reconnect the wire harnesses as they were previously, and reassemble the door and control panel.
7. Restore power to the dishwasher and run a test cycle.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Parts to Check

No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.

Bosch dishwasher water inlet valve

Common replacement category: Water inlet valve

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked.

Search Amazon for Bosch dishwasher water inlet valve

Bosch dishwasher drain pump

Common replacement category: Drain pump

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked.

Search Amazon for Bosch dishwasher drain pump

Bosch dishwasher circulation pump

Common replacement category: Circulation pump / wash motor

Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.

Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.

Search Amazon for Bosch dishwasher circulation pump

Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Ask a Technician Online – Get Answer in Minutes
Find a Local Repair Pro Near You
When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
Built-In Dishwashers

Standard 24-Inch Models

Common under-counter replacement size

Check height, width, and toe-kick clearance

Match hardwire or cord connection requirements

Shop Built-In Dishwashers

Compact Options

18-Inch and Small-Space Models

Useful for narrow cabinets

Confirm ADA or compact dimensions

Verify panel and handle clearance

Compare Compact Dishwashers

Portable and Countertop

No Built-In Cabinet Cutout

Good for rentals or limited cabinets

Confirm faucet adapter compatibility

Measure counter or storage space

View Portable Dishwashers
As an Amazon Associate, we earn from qualifying purchases.
April 9, 2026