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E99Siemens Washer

Siemens Washer Error E99 – 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

  • 1Kinked or bent hoses restricting water flow
  • 2Loose wiring harness
  • 3Faulty valve solenoid
  • 4Blocked drain pump or hose
  • 5Sensor damaged by moisture or mineral buildup

Symptoms

Look for these signs to confirm error E99 on your Siemens Washer:

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

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 Siemens Washer error E99 mean?
The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked.
What causes Siemens Washer E99 error?
Common causes include: Kinked or bent hoses restricting water flow, Loose wiring harness, Faulty valve solenoid.
How do you fix Siemens Washer error E99?
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 Siemens Washer Errors

E387The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked
E982The appliance control system detected a condition indicating sensor calibration error – sensor values conflict with expected parameters
E803The appliance control system detected a condition indicating fan motor failure – cooling or ventilation fan not operating
E634The appliance control system detected a condition indicating drain system failure – water cannot be removed properly
E365The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked
E405The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked
E373The appliance control system detected a condition indicating door or lid lock error – appliance cannot confirm door is securely locked
E796The 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 Siemens repair experience. Every error code is verified against manufacturer service manuals and real-world repair data.