Frigidaire Dishwasher ER1 error code

Control board fault. The electronic control detected a problem with a sensor or its wiring and flagged the board area as the source.

Also shown as: ER1, ER:01, Er1

Last updated: October 6, 2026

Quick answer: Frigidaire dishwasher error code ER1: control board fault. The most common cause is failing electronic control board. Try this first — power-reset at the breaker. If that does not clear it, note any recent power events. If the code persists, call a qualified technician.

What causes the ER1 error?

  • Failing electronic control board
  • Malfunctioning sensor feeding bad data to the board
  • Loose or damaged wiring to the control board
  • Power surge damaging the board
  • Corroded connector on the board

How to fix Frigidaire ER1 — step by step

Work through these in order, from simplest and safest first. Stop as soon as the code clears.

  1. Power-reset at the breaker
    Turn off the dishwasher's circuit breaker for 5 full minutes, then turn it back on. This is the only homeowner step for ER1: it clears a false board fault from a power glitch.
  2. Note any recent power events
    If ER1 appeared right after a storm or power outage, a surge is the likely cause. Note this for your technician, since surge damage sometimes affects more than one component.
  3. Watch for a repeat
    If the code clears and the dishwasher runs normally for several cycles, it was a glitch. If ER1 returns even once, the board or sensor fault is real.
  4. Call a technician for board diagnosis
    ER1 means the control board, its sensors, or its wiring needs professional diagnosis. Board replacement is common and straightforward for a technician.
    Safety warning: Do not open the control panel or handle the board yourself. Dishwasher controls sit near water connections and line voltage.
Related guide: Dishwasher troubleshooting — fix common problems, with links to every dishwasher error code we cover.

When to call a technician

Stop and call a qualified technician if any of these apply:
  • ER1 returns after a power reset
  • The controls are dead or behave erratically
  • The control board needs replacement
  • A sensor or wiring fault needs professional tracing

Frequently asked questions

Is ER1 a DIY fix?

It is a control-level fault. The board itself, a sensor it reads, or the wiring between them is the problem. Power resets only clear glitches.

Why would the control board fail?

A failing board can misbehave in many ways: dead controls, wrong cycle behavior, or phantom codes. ER1 is the board flagging its own problem area.

Can a power surge cause ER1?

Yes. Surges are a common board killer. A surge protector on the dishwasher circuit is cheap insurance after the repair.

Sources

Every meaning and fix above was checked against official manufacturer documentation:

FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.

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