Haier Dishwasher Error Codes

Complete Troubleshooting & Repair Guide

Water Supply Errors
E1
Water Inlet Timeout
  • Check if water supply tap is open.
  • Inspect inlet hose for kinks or blockage.
  • Clean inlet filter screen.
  • Verify water pressure is sufficient.
Drainage Errors
E2
Drain Timeout
  • Clean drain filter and sump area.
  • Check drain hose for blockage or bending.
  • Inspect drain pump operation.
  • Replace pump if not functioning.
Heating System Errors
E3
Heating Element Issue
  • Test heating element resistance.
  • Inspect wiring connections.
  • Check control board output.
  • Replace heating element if faulty.
E7
Heating Circuit Malfunction
  • Inspect heater relay and wiring.
  • Check PCB control signals.
  • Test continuity of heating circuit.
  • Replace control board if needed.
Protection & Sensor Errors
E4
Overflow Protection Activated
  • Check for water leakage inside unit.
  • Inspect float switch operation.
  • Clean base tray if water is present.
  • Reset dishwasher after drying.
E5
Water Temperature Sensor Fault
  • Inspect thermistor wiring connection.
  • Test temperature sensor resistance.
  • Check for corrosion or damage.
  • Replace sensor if readings are abnormal.
E6
Water Turbidity Sensor Error
  • Clean turbidity sensor lens area.
  • Check for detergent buildup.
  • Inspect wiring connection.
  • Replace sensor if faulty.
Important: If the error persists after troubleshooting, disconnect power and water supply immediately and contact a qualified technician.