Bosch Dishwasher: watertap error
What is this symptom?
Experiencing a Bosch Dishwasher watertap error? This indicates a problem with water supply, often due to low pressure or a closed tap, preventing your dishwasher from filling and starting properly. Understanding the causes and solutions can help you resolve the issue quickly.
Important Tips for Bosch Models
- Bosch dishwashers use a self-diagnosis system; watertap indicates water supply insufficiency or blockage and may require pressure of ~10L/min from tap.
Possible Causes
Insufficient water supply (low pressure or closed tap)
How to Identify: Dishwasher displays water tap error before filling; water supply tap may be partially closed or water flow is visibly low when tested.
Part: House water tap and supply line
Internal siphoning or drain hose issue preventing fill
How to Identify: Dishwasher tries to fill but water continually drains due to incorrect hose position or siphoning.
Part: Drain hose installation
DIY Solutions
Check and fully open the water supply tap
- Ensure the household water supply valve to the dishwasher is fully open.
- Turn on the tap and verify substantial flow (~10L/min) near the inlet hose before reconnecting the dishwasher.
Straighten and inspect the inlet hose
- Pull dishwasher out slightly to access the inlet hose.
- Remove kinks or twists and ensure hose is not pinched behind the unit.
Clean the water inlet filter
- Turn off water supply and disconnect inlet hose.
- Rinse the filter screen under running water and brush away debris.
- Reconnect hose securely and restore water.
Reset dishwasher to clear latch error memory
- Turn off dishwasher power at the appliance or breaker for ~5 minutes.
- Restore power and attempt a new cycle.
Next step
Choose the next step for watertap error
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Drain Hose
Carries waste water from the drain pump to your home's standpipe or sink drain.
- Typical part-only price
- $15 - $30
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Professional Repairs
Replace water inlet valve
Diagnose and fix internal flow or control issues
When to Call a Professional
Preventive Maintenance
-
Periodically clean inlet hose filter: Water tap error due to debris buildup
Frequency: Every 3-6 months -
Inspect hoses for kinks: Restricted water flow to dishwasher
Frequency: Quarterly
Frequently Asked Questions
Why is my Bosch Dishwasher watertap error?
How do I fix Bosch Dishwasher watertap error myself?
How much does it cost to fix watertap error?
When should I call a technician for watertap error?
References & Sources
Community Analytical Insights
Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions
Common Issues Reported by Users
- Clogged water inlet filter
- Faulty water inlet valve
- Kinked or damaged water supply hose
User Suggested Solutions
-
Check and clean the water inlet filter. Turn off the water supply, disconnect the hose from the dishwasher, and remove the filter. Clean it under running water, then reassemble and test the dishwasher.
-
Inspect the water inlet valve for proper function. If it appears faulty, replace it. Ensure the power is off, disconnect the dishwasher, and follow the manufacturer's instructions for replacement.
-
Examine the water supply hose for kinks or damage. If found, straighten or replace the hose. Ensure all connections are secure before testing the dishwasher.
Limited-source guidance; percentages and success-rate claims are not shown
View
Sources
Data compiled from real discussions on r/appliancerepair and r/Appliances:
Community Discussions
watertap error
Replaced the water inlet valve, which resolved the watertap error initially.
Source: Reddit r/appliancerepair
User Comments (0)
Share your experience or solution below.
Please login to post a comment.
Be the first to comment!