Is your Bosch dishwasher showing the E21 error code? This code usually points to a problem with the wash motor or a blockage in the circulation pump. This guide will help you fix the issue. It will save you time and money on expensive repair calls. With a little effort, you can fix this fault. Then, your dishwasher will perform at its best.
Understanding the E21 Error Code
The E21 error code on your Bosch dishwasher means a problem with the wash motor or circulation pump. This part of the dishwasher is crucial as it pushes water to the spray arms to clean your dishes, pots, and pans. Debris in the pump clogs the wash motor, hindering dishwasher performance. This guide will help you identify and resolve these common problems.
Step 1: Ensure Safety First
Before starting any repairs, ensure the dishwasher is completely disconnected from the mains. This is important for your safety. Make sure there is no power supply to avoid any accidental electric shocks.
Step 2: Check for Blockages in the Drain Pump
A blocked drain pump can often cause the E21 error. Follow these steps to inspect and clean:
- Remove any excess water from the bottom of the dishwasher.
- Locate the drain pump by referring to the Bosch manual. If you don’t have a printed copy, you can easily find it online.
- Remove the filter. Then, check the pump area for any small, hard objects that may have dislodged or blocked it.
- Look for the white plastic piece designed to keep hard objects out of the pump. Click it firmly into position with a reassuring snap.
Step 3: Inspect the Heat Pump and Filter
Another common cause of the E21 error is a blocked heat pump. To check this:
- Reset the power by turning off the breaker for about 30 seconds.
- Remove the filter to expose the pump. Check for fibrous vegetables or other debris that might be clogging the system.
- Use a small piece of plastic mesh, like screen wire. It will block chunks from getting into the filter bypass. It must not interfere with the draining.
Step 4: Remove and Clean the Blockage
If you find any blockages, carefully remove them. You might notice plastic pieces or fibrous materials stuck inside. Clean these thoroughly to ensure smooth water flow.
Step 5: Run a Maintenance Wash
To prevent the E21 error, run a maintenance wash every month. This will keep your dishwasher in good working order. This helps to remove limescale, bacteria, and other blockages that might cause problems. Products like eSpares Dishwasher & Washing Machine Cleaner are well-rated for this.
Step 6: Test Your Dishwasher
After you clear the blockages and reassemble the parts, turn the dishwasher back on. Run a short cycle to see if the E21 error still appears. If the error is gone, you’ve successfully fixed the problem!
Regular Maintenance Tips
- Regularly clean the filter to prevent blockages.
- Check the dishwasher for any hard objects or debris that may have gotten past the filter.
- Use a dishwasher cleaner monthly to maintain performance and prevent future faults.
By following these steps, you can fix the E21 error on your Bosch dishwasher. It will keep it running smoothly. Regular maintenance can prevent serious repairs later. So, address issues quickly.
FAQs About Bosch Dishwasher E21 Error Code
What Does the E21 Error Code on a Bosch Dishwasher Indicate?
The E21 error code on a Bosch dishwasher indicates a problem with the wash motor or a blockage in the circulation pump. This typically results in insufficient water flow, preventing the dishwasher from operating effectively. Addressing the blockage or motor issue can resolve the error.
How to Reset Your Bosch Dishwasher to Fix the E21 Error
To reset your Bosch dishwasher and clear the E21 error, turn off the breaker for about 30 seconds. This will reset the dishwasher’s system. Ensure any blockages are cleared before turning the power back on to avoid recurring errors.
How do I check for blockages in the Bosch dishwasher’s pump?
To check for blockages in the Bosch dishwasher pump, first disconnect it from the mains. Remove the filter and inspect the pump area for any debris or objects. Make sure the white plastic piece is clicked into place. This will prevent future blockages.
Why does my Bosch dishwasher keep showing the E21 error?
The E21 error often recurs due to blockages in the drain pump or circulation pump, or a faulty wash motor. Regular cleaning and maintenance, like a monthly wash, can help. It can prevent blockages and ensure smooth operation.
Can I fix the E21 error on my Bosch dishwasher myself?
Yes, you can fix the E21 error on your Bosch dishwasher. Check and clear any blockages in the drain pump and wash motor. For safety, disconnect the appliance from the mains. Then, follow the steps in your Bosch manual.
How often should I maintain my Bosch dishwasher to prevent errors?
To avoid errors like E21, perform a maintenance wash every month. This helps remove limescale, bacteria, and blockages that can cause performance issues. Using a recommended dishwasher cleaner can be helpful. Try eSpares Dishwasher & Washing Machine Cleaner.
