Miele Dishwasher: not operating normally

Professional Repair Guide

What is this symptom?

Is your Miele dishwasher not operating normally? This may include issues like failure to start, error codes, or inconsistent performance. Understanding the common causes and solutions can help you troubleshoot effectively and restore your dishwasher's functionality.

Urgency: Medium

Important Tips for Miele Models

  • Miele dishwashers use a variety of error codes to signal specific faults; refer to official error code listings for targeted diagnosis.

Possible Causes

Error codes indicating system faults

How to Identify: Display shows specific error codes (e.g., F11, F12, F13, F70, etc. during or after operation

Part: Control electronics / sensors

Water supply (inlet) issues

How to Identify: Dishwasher does not start or pauses with water inlet indicator or error (e.g., F12/F13. Check water supply valve and hose positioning.

Part: Inlet valve / water supply hose

Drainage or pump blockage

How to Identify: Water remains in tub after cycle, error codes (F11/F14 shown, or cycle fails mid‑operation.

Part: Filter, drain pump, drain hose

Door not fully closed or latched

How to Identify: Dishwasher won’t start and control panel may not respond; physical check reveals door isn’t fully latched.

Part: Door latch / seal

Internal component failure (e.g., circulation pump)

How to Identify: Dishwasher powers on and attempts to run but fails mid‑cycle without typical error codes, or specific pump error codes.

Part: Circulation pump

DIY Solutions

Check door closure and restart

Easy 5 minutes
  1. Ensure dishwasher door is fully closed and latched.
  2. Turn off the dishwasher, wait 1 minute, then restart the program.
⚠️ Safety First: Ensure door is securely latched before operation.

Clean filters and check drainage

Moderate 15-30 minutes
Tools Needed: Gloves, Soft brush, Warm water
  1. Open dishwasher and remove lower filter assembly.
  2. Rinse the filter under warm water, removing debris.
  3. Inspect drain area for debris and clear as needed, ensuring the drain hose isn’t kinked.
⚠️ Safety First: Disconnect power before accessing filters for safety.

Check water supply hose and inlet filter

Moderate 10-20 minutes
Tools Needed: Adjustable wrench
  1. Turn off water supply.
  2. Inspect inlet hose for kinks or blockages.
  3. Remove and clean inlet filter mesh if accessible.
  4. Reconnect hose and restore water supply.
  5. Restart dishwasher.
⚠️ Safety First: Shut off water supply before disconnecting hoses.

Professional Repairs

Replace faulty drain or circulation pump

Estimated Cost: $150 - $400

Control board diagnostics and replacement

Estimated Cost: $200 - $600

When to Call a Professional

Repeated or persistent error codes that DIY steps don’t resolve
Water leakage or waterproof system triggers (e.g., F70)
Unusual noises indicating internal mechanical failure
Dishwasher starts but stops mid-cycle or fails to complete cycles

Preventive Maintenance

  • Clean filters regularly: Drainage issues and operation interruptions
    Frequency: monthly
  • Run maintenance wash with dishwasher cleaner: Build-up that can cause pumping and cleaning issues
    Frequency: monthly

Frequently Asked Questions

Why is my Miele Dishwasher not operating normally?
Common causes include error codes, water supply issues, drainage blockages, or a door not fully closed.
How do I fix Miele Dishwasher not operating normally myself?
Start by checking the door closure, cleaning filters, and inspecting the water supply hose for kinks.
How much does it cost to fix not operating normally?
Professional repairs can range from $150 to $600, depending on the issue.
When should I call a technician for not operating normally?
Call a technician if DIY solutions do not resolve the issue or if internal components may be failing.

References & Sources

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

65%
DIY Success Rate Difficulty: Either

Common Issues Reported by Users

  • Faulty drain pump causing humming or buzzing sounds when not in use
  • Clogged filter or drain hose leading to abnormal sounds
  • Electrical issues such as loose wiring or a malfunctioning control board

User Suggested Solutions

  1. Inspect and clean the drain pump and filter. Remove any debris and ensure the pump is functioning correctly.

  2. Check the drain hose for kinks or clogs. Ensure it is properly connected and free of obstruction.

  3. Examine the electrical connections and control board for any signs of damage or loose wires. Replace any faulty components.

Analysis based on 1 community discussions
View Sources

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

  1. Clogged sink impacting dishwasher AND washing machine?

Community Discussions

humming/buzzing sound when not in use

Jiggled the filter to stop the noise; ran a test cycle successfully.

DIY View on Reddit →

Source: Reddit r/appliancerepair

User Comments (0)

Share your experience or solution below.

Be the first to comment!