Thermador dishwashers are known for their advanced technology and high-end performance, making them a favorite in modern kitchens. However, even the best appliances can encounter problems. Among the most common issues are error codes E16 and E17, which indicate abnormal water levels in the dishwasher. While seeing these codes can be alarming, understanding what they mean and how to troubleshoot them can save time and prevent damage.
Understanding E16 and E17 Error Codes
Error codes E16 and E17 are diagnostic signals that something is wrong with the dishwasher’s water filling process. These codes typically appear when the appliance detects that water is either overfilling or not reaching the correct level.
The difference between the codes is subtle but important:
- E16 usually indicates a problem with water overfilling or the float switch being stuck in a raised position.
- E17 often points to a more general filling or drainage issue, which could involve the water inlet valve, float switch, or drainage system.
Both codes serve as a warning to prevent water damage or operational issues. Understanding the source of the problem is essential before attempting repairs.
Common Causes of E16 and E17
Several factors can trigger these error codes. Knowing the cause helps you determine whether a DIY solution is possible or if professional service is needed.
- Water Supply Problems: Insufficient or inconsistent water pressure can prevent the dishwasher from filling properly.
- Clogged or Malfunctioning Water Inlet Valve: The inlet valve controls water entering the dishwasher. Debris or a defective valve can disrupt water levels.
- Float Switch Issues: The float switch monitors water levels to prevent overfilling. If it sticks or fails, the dishwasher may misread the water level.
- Drainage Obstructions: A clogged drain hose or air gap can interfere with proper water circulation and create abnormal readings.
- Leaks or Loose Connections: Any leaks in hoses or connections can cause excess water to enter the system.
Troubleshooting E16 and E17 at Home
Many E16 and E17 issues can be addressed without professional help if safety precautions are followed. Always turn off the dishwasher and unplug it before inspecting components.
Start with the water supply. Make sure the dishwasher receives steady water pressure and that valves are fully open. Low pressure or inconsistent supply can trigger error codes.
Next, check the water inlet valve. Inspect for debris or mineral buildup that could prevent proper operation. Gently clean the valve if necessary, but if it appears damaged, replacement may be required.
The float switch is another common culprit. This small device moves up and down as the water level changes. If it’s stuck or obstructed, gently free it and ensure it moves smoothly.
Don’t forget the drainage system. A blocked drain hose or air gap can prevent water from leaving the dishwasher, causing the system to register abnormal water levels. Remove any obstructions and ensure a clear path for water flow.
After inspection, plug the dishwasher back in and run a short cycle. Sometimes, a simple reset clears the error, especially if the issue was minor or temporary.
DIY Fixes You Can Try
- Gently clean the water inlet valve and remove debris.
- Free the float switch if it’s stuck and ensure smooth movement.
- Check all hoses for kinks, clogs, or loose connections.
- Clear the dishwasher drain and air gap for proper drainage.
- Reset the appliance by unplugging it for a few minutes and then powering it back on.
These steps often resolve E16 and E17 errors, especially when caused by minor blockages or mechanical misreads.
Preventive Tips for Thermador Dishwashers
Preventive maintenance helps avoid water-related error codes and keeps your dishwasher running smoothly:
- Regularly Clean Filters and Hoses: Prevent blockages and buildup that can affect water flow.
- Check Water Pressure: Ensure consistent water supply to the dishwasher.
- Inspect Float Switches: Periodically ensure they move freely and are not obstructed.
- Maintain Drainage System: Clear any debris from hoses and air gaps to avoid clogs.
- Avoid Overloading: Heavy or uneven loads can interfere with water distribution.
Routine care can significantly reduce the risk of encountering E16 or E17 errors and extend the lifespan of your dishwasher.
Conclusion
Thermador dishwashers are high-performing machines, but even the best appliances can experience error codes E16 and E17 related to water filling. By understanding what these codes mean, performing safe DIY checks, and following preventive maintenance, most issues can be resolved without extensive repair. Persistent problems, however, should be addressed by a qualified technician to ensure your dishwasher continues to operate efficiently and safely.
Proper care, early troubleshooting, and timely repairs are key to keeping your Thermador dishwasher functioning flawlessly for years to come.