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E818Siemens Dishwasher

Siemens Dishwasher Error E818 – Meaning, Causes & How to Fix

The appliance control system detected a condition indicating temperature sensor fault – thermistor readings are outside expected range.

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 temperature sensor fault – thermistor readings are outside expected range.

Real-World Causes

  • 1Clogged inlet filter screens
  • 2Water supply valves not fully open
  • 3Kinked or bent hoses restricting water flow
  • 4Sensor damaged by moisture or mineral buildup
  • 5Faulty valve solenoid

Symptoms

Look for these signs to confirm error E818 on your Siemens Dishwasher:

  • Error appears at start of cycle
  • Clicking sounds as relays activate
  • Machine pauses and displays error
  • 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 Siemens Dishwasher error E818 mean?
The appliance control system detected a condition indicating temperature sensor fault – thermistor readings are outside expected range.
What causes Siemens Dishwasher E818 error?
Common causes include: Clogged inlet filter screens, Water supply valves not fully open, Kinked or bent hoses restricting water flow.
How do you fix Siemens Dishwasher error E818?
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 Dishwasher Errors

E263The appliance control system detected a condition indicating heater circuit fault – heating element is not operating correctly
E591The appliance control system detected a condition indicating motor control error – the controller cannot communicate with drive motor
E30The appliance control system detected a condition indicating sensor calibration error – sensor values conflict with expected parameters
E503The appliance control system detected a condition indicating drain system failure – water cannot be removed properly
E685The appliance control system detected a condition indicating temperature sensor fault – thermistor readings are outside expected range
E895The appliance control system detected a condition indicating temperature sensor fault – thermistor readings are outside expected range
E876The appliance control system detected a condition indicating temperature sensor fault – thermistor readings are outside expected range
E643The appliance control system detected a condition indicating temperature sensor fault – thermistor readings are outside expected range

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.