Miele Dishwasher: water inlet/outlet issue

Professional Repair Guide

What is this symptom?

Experiencing water inlet or outlet issues with your Miele dishwasher? This could mean no water filling at the start or standing water post-cycle. Common causes include a closed water supply valve, blocked hoses, or a faulty inlet valve. Learn how to troubleshoot these issues effectively.

Urgency: Medium

Important Tips for Miele Models

  • Miele displays specific inlet/drain error codes like F11, F12, F13 related to water inlet/outlet issues.

Possible Causes

Closed or restricted water supply valve / low inlet water pressure

How to Identify: Dishwasher displays water inlet fault or indicator flashes; water pressure at other fixtures is low or tap to dishwasher not fully open.

Part: Water supply valve and home plumbing

Kinked or blocked inlet hose

How to Identify: No or low water fill despite open valve; visible bends or kinks in hose behind dishwasher.

Part: Inlet water hose

Faulty water inlet (solenoid) valve

How to Identify: Dishwasher not filling after checking supply, hose, and pressure; electrical testing shows valve not actuating.

Part: Water inlet solenoid valve

Clogged drain hose or non‑return valve

How to Identify: Standing water after cycle completes or error codes like F11; drain hose bent or blocked.

Part: Drain hose and non‑return valve

DIY Solutions

Check and open water supply and pressure

Easy 5–10 minutes
  1. Locate the water supply tap under the sink feeding the dishwasher.
  2. Ensure the valve handle is fully open (parallel to pipe).
  3. Test water flow at nearby faucet to confirm adequate pressure.
⚠️ Safety First: None specific

Inspect and straighten inlet and drain hoses

Moderate 10–20 minutes
Tools Needed: Screwdriver possibly to remove access panel
  1. Pull dishwasher out from cabinet to access rear hoses.
  2. Visual inspect inlet and drain hoses for kinks or sharp bends.
  3. Straighten hose routing and re‑secure clamps; if blocked, detach and flush with water.
  4. Reinstall hoses securely.
⚠️ Safety First: Turn off water supply before disconnecting hoses.

Clean dishwasher filter and drain system

Moderate 15–30 minutes
Tools Needed: Sponge, soft brush
  1. Open dishwasher and remove lower rack.
  2. Remove and rinse filter assembly and inner filter parts.
  3. Check drain area beneath filter for debris and remove by hand.
  4. Reinstall filters correctly.
⚠️ Safety First: Be careful with sharp debris; use gloves

Professional Repairs

Replace water inlet valve

Estimated Cost: $50–$150 (part only; labor extra)

Service or replace drain pump or control board

Estimated Cost: $150–$500

When to Call a Professional

Water inlet or drain error codes persist after DIY troubleshooting
Standing water remains after clearing filters and hoses
Electrical testing needed for valve or control board faults

Preventive Maintenance

  • Clean filters and inspect hoses: Drain blockages and intake flow restrictions
    Frequency: monthly
  • Check water supply valve position: Unexpected intake faults due to closed valves
    Frequency: annually

Frequently Asked Questions

Why is my Miele Dishwasher water inlet/outlet issue?
Common causes include a closed water supply valve, low pressure, or clogged hoses.
How do I fix Miele Dishwasher water inlet/outlet issue myself?
Check the water supply valve, inspect hoses for kinks, and clean the filter.
How much does it cost to fix water inlet/outlet issue?
Professional repairs can range from $50–$150 for parts, and $150–$500 for pump or control board services.
When should I call a technician for water inlet/outlet issue?
If DIY fixes fail or if complex repairs like pump replacement are needed, contact a technician.

References & Sources

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

75%
DIY Success Rate Difficulty: Either

Common Issues Reported by Users

  • Clogged or kinked inlet hose
  • Faulty inlet valve
  • Blocked drain hose or filter

User Suggested Solutions

  1. Inspect the inlet hose for kinks or clogs. Ensure it is properly connected and free of obstructions. Replace if damaged.

  2. Test the inlet valve for continuity using a multimeter. If faulty, replace the inlet valve.

  3. Check the drain hose for blockages and clean the filter located at the bottom of the dishwasher. Reassemble and test.

Analysis based on 1 community discussions
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. Miele dishwasher stopping cycle

Community Discussions

water inlet/outlet problem

Changed the inlet pump after diagnosing the issue.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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