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E446Miele Dishwasher

Miele Dishwasher Error E446 – Meaning, Causes & How to Fix

The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked.

Medium Severity
Low
Medium
High
Critical

Expert Verified

Reviewed by a Certified Electrical Engineer & Licensed Technician

Official Meaning

The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked.

Real-World Causes

  • 1Blocked drain pump or hose
  • 2Sensor damaged by moisture or mineral buildup
  • 3Electronic control board failure
  • 4Kinked or bent hoses restricting water flow
  • 5Loose wiring harness

Symptoms

Look for these signs to confirm error E446 on your Miele Dishwasher:

  • Appliance stops mid-cycle
  • Machine pauses and displays error
  • Clicking sounds as relays activate
  • Slow filling or draining

DIY Fix (Safe)

  1. 1Verify household water and power supply
  2. 2Inspect hoses and filters for blockages
  3. 3Restart appliance after disconnecting power for 5 minutes
  4. 4Clean accessible filters and sensors
  5. 5Run diagnostic mode if available

Professional Action Required

  1. 1Test valves, sensors, and motors with multimeter
  2. 2Inspect wiring harness and connectors
  3. 3Replace defective pumps, motors, or sensors
  4. 4Check control board relays
  5. 5Replace electronic control board if failure confirmed

Additional Context

Load Type
Any load type
Drain Related
Depends on cycle stage
Sensor Issues
Incorrect readings possible if sensors are blocked

Frequently Asked Questions

What does Miele Dishwasher error E446 mean?
The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked.
What causes Miele Dishwasher E446 error?
Common causes include: Blocked drain pump or hose, Sensor damaged by moisture or mineral buildup, Electronic control board failure.
How do you fix Miele Dishwasher error E446?
Start with these DIY steps: Verify household water and power supply. Inspect hoses and filters for blockages. If the error persists, professional service may be needed.

Related Error Codes

Other Miele Dishwasher Errors

E342The appliance control system detected a condition indicating sensor calibration error – sensor values conflict with expected parameters
E54The appliance control system detected a condition indicating communication error – internal control boards lost connection
E98The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked
E243The appliance control system detected a condition indicating sensor calibration error – sensor values conflict with expected parameters
E587The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked
E10The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked
E595The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked
E482The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked

About the Author

Technical Review Team

Reviewed by certified technicians with 10+ years of Miele repair experience. Every error code is verified against manufacturer service manuals and real-world repair data.