If your Miele dishwasher is not draining properly, you may need to remove the non-return valve. This valve prevents water from flowing back into the dishwasher from the drain hose. Over time, the valve can become clogged with food debris or mineral buildup, which can prevent it from functioning properly. Removing the non-return valve is a relatively simple task that can be completed in a few minutes.
Materials You’ll Need
- Phillips head screwdriver
- Bucket or bowl
- Rags
- Flashlight (optional)
Safety Precautions
- Before you begin, turn off the water supply to your dishwasher.
- Unplug the dishwasher from the electrical outlet.
- Allow the dishwasher to cool down completely before you begin working on it.
Step-by-Step Instructions
1. Locate the Non-Return Valve
The non-return valve is located on the bottom of the dishwasher, near the drain hose. It is usually a small, white or gray plastic component.
2. Remove the Drain Hose
Disconnect the drain hose from the dishwasher by loosening the hose clamp with a Phillips head screwdriver. Place a bucket or bowl under the hose to catch any water that may drain out.
3. Disconnect the Non-Return Valve
Use a Phillips head screwdriver to remove the screws that hold the non-return valve in place. Carefully pull the valve away from the dishwasher.
4. Clean the Non-Return Valve
Inspect the non-return valve for any signs of clogging. Use a small brush or toothpick to remove any debris or buildup. Rinse the valve thoroughly with clean water.
5. Reinstall the Non-Return Valve
Insert the non-return valve back into the dishwasher and tighten the screws to secure it in place.
6. Reattach the Drain Hose
Reconnect the drain hose to the dishwasher and tighten the hose clamp.
7. Turn on the Water Supply and Test the Dishwasher
Turn on the water supply to your dishwasher and plug it back into the electrical outlet. Run the dishwasher through a short cycle to test if the non-return valve is working properly.
Troubleshooting
If the dishwasher is still not draining properly after you have removed and cleaned the non-return valve, there may be another problem. Here are a few things to check:
- Clogged drain hose: Remove the drain hose from the dishwasher and check for any clogs.
- Clogged drain pump: The drain pump is located at the bottom of the dishwasher. Remove the pump and check for any clogs.
- Faulty drain pump: If the drain pump is clogged or damaged, it will need to be replaced.
Key Points
Removing the non-return valve in a Miele dishwasher is a simple task that can be completed in a few minutes. By following the steps in this guide, you can easily remove and clean the valve, and get your dishwasher back up and running again.
Top Questions Asked
Q: How often should I clean the non-return valve in my Miele dishwasher?
A: You should clean the non-return valve every few months, or more often if you have a lot of dishes with food debris.
Q: What are the signs of a clogged non-return valve?
A: The signs of a clogged non-return valve include water leaking from the dishwasher, dishes not being cleaned properly, and the dishwasher not draining properly.
Q: Can I replace the non-return valve myself?
A: Yes, you can replace the non-return valve yourself. However, if you are not comfortable working on appliances, it is best to call a qualified technician.
