Electrolux Dishwasher Error Code i70 — Wash Motor Triac Short
What this means
The i70 error code on Electrolux dishwashers indicates the control board's wash motor triac has shorted, causing the wash motor to receive uncontrolled power. Unlike i50 (general triac fault), i70 specifically means the triac has failed in the closed (shorted) position, keeping the motor running. The dishwasher will stop as a safety measure. This is a control board hardware failure.
Alternate codes: I70, i 70
Step-by-step fix
4 stepsTurn off the circuit breaker
A shorted triac means the wash motor could run uncontrolled. Turn off the dishwasher's circuit breaker immediately to prevent potential damage.
If the motor was running non-stop or ran after the cycle should have ended, this confirms the shorted triac.
Test the wash motor
Before replacing the board, test the wash motor for shorts to ground. A shorted motor may have caused the triac to fail. If the motor is shorted, it must be replaced before installing a new board.
Test motor terminals to motor body — any continuity means it's shorted.
Inspect the control board
Access the control board and look for visible damage around the wash motor triac area — burn marks, discoloration, or melted components.
The triac is typically a small tab component near the heavy-gauge motor wires on the board.
Replace the control board
Replace the main control board. Transfer all wire connections carefully. After installation, run a test cycle to verify the motor operates normally.
If the motor was also shorted, replace both the motor and the board.
When to call a professional
This repair involves control board replacement and motor testing. Call a professional if you're not comfortable with electrical diagnostics.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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