Frigidaire · Dishwasher

ER

Control Board Memory Error

Severity

High

Seeing ER on your Frigidaire Dishwasher display means the appliance self-diagnostic detected "Control Board Memory Error". Before calling a technician, work through the steps in this guide — the fix is often simpler than you think.

Owner's Summary

Your Frigidaire dishwasher's main computer has detected an internal memory error. Try unplugging the machine for 5 minutes first — power surges can cause temporary memory errors that clear on their own with a power cycle.

Symptoms

Frigidaire dishwasher not responding, all lights on, ER displayed

Common Causes

Internal PCB memory checksum error
Power surge corrupting firmware
Failing PCB capacitor
Water damage to control board

How to Fix

1 Unplug for 5 minutes and restore power
2 Inspect PCB for swollen capacitors or burn marks
3 Replace main PCB if error persists
4 Check for water damage inside control panel area

Tools You'll Need

Screwdriver Set Towels / Bucket Flashlight

Most of these fixes need only basic hand tools. If your repair requires opening electrical housings or testing live components, a multimeter and basic electrical safety knowledge are essential — when in doubt, call a technician.

Technical Explanation

ER is generated when the PCB performs its startup self-test and detects a RAM checksum mismatch, EEPROM read error, or critical I/O test failure. The board posts ER and locks out all cycle operations until the fault is cleared or the board is replaced.

Is It Safe to Keep Using?

Safe to leave off. No damage risk from a non-operating machine.

Technician's Pro Tip

Frigidaire PCBs are prone to failure from electrolytic capacitor aging. Swollen or leaking capacitors on the PCB are visible to the naked eye — if you see any bulging tops on the capacitors, the board has failed and needs replacement or professional recapping.

Related Codes

E1 — Samsung Dishwasher

Water Supply Error

High

E2 — Samsung Dishwasher

Water Temperature Too High

Medium

E3 — Samsung Dishwasher

Water Not Heating

Medium

Frequently Asked Questions

What does error code ER mean on a Frigidaire Dishwasher?

Code ER on a Frigidaire Dishwasher indicates "Control Board Memory Error." In practice, the most common trigger is internal PCB memory checksum error. Severity is rated high, and typical repair costs range from $0 to $280.

Can I fix ER myself, or do I need a technician?

Many cases of ER can be resolved without a technician. The first step to try: unplug for 5 minutes and restore power. If that doesn't clear the code, work through the remaining steps in the "How to Fix" section above before assuming a part needs replacing.

Is it safe to keep using my dishwasher with code ER showing?

Safe to leave off. No damage risk from a non-operating machine.

How much does it cost to repair ER on a Frigidaire Dishwasher?

Repair costs for code ER typically range from $0 to $280. Power reset: $0; Main PCB: $80–$280. Costs on the low end usually reflect a DIY fix with no parts required, while the high end reflects a part replacement plus professional labor.

Estimated Repair Cost USD

$0 – $280

Power reset: $0; Main PCB: $80–$280