ERFrigidaire Dishwasher — Frigidaire Dishwasher ER Error Code

The ER code on Frigidaire dishwashers indicates an electronic control error, typically a memory fault or communication error within the control board itself. This is distinct from component-level faults (drain pump, fill valve, etc.) — ER points to the control board's own electronics malfunctioning. Common triggers include power surges, brownouts, or cumulative voltage stress that corrupts the board's memory or disrupts its internal communication bus. ER may appear at startup or mid-cycle.

Perform a hard reset: disconnect power at the circuit breaker for 5 full minutes, then restore power. This clears the board's volatile memory and may resolve a transient ER code. If ER returns after the reset or after the first subsequent cycle, the control board has a persistent fault and likely needs replacement (5304517465). Before replacing the board, confirm that all component wiring connections to the board are fully seated and free of corrosion — a failing wiring connection can trigger board-level errors.