F1E2 Serious Moderate DIY

Maytag Microwave F1E2 — ACU EEPROM / Memory Error

Maytag Microwave · Error code F1E2

What F1E2 Means

The main control board's non-volatile memory has failed a self-check; the board cannot reliably store calibration or settings.

Symptoms

  • F1E2 at startup
  • Settings reset randomly
  • Microwave nonfunctional

Common Causes

1
Corrupted EEPROM

Power surge or component aging corrupted stored data.

2
Failed control board

Memory chip on ACU has failed.

3
Low/unstable line voltage

Brownouts during writes corrupted EEPROM.

How to Fix It

  1. Unplug the microwave for 5 minutes to attempt a soft reset.
  2. Restore power and observe — if F1E2 persists, the memory is bad.
  3. Check that the microwave is on a dedicated 20A circuit at proper voltage.
  4. Replace the main control board (ACU).
  5. After replacement, verify clock and settings save through a power cycle.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Maytag microwave main control board (ACU) View on Amazon→

More Maytag Microwave Codes

door 'door' — Door Not Closed / Open Reminder F1E1 F1E1 — Main Control Board Failure F2E1 F2E1 — Stuck Key on Keypad F2E2 F2E2 — User Interface Mismatch F3E1 F3E1 — Humidity Sensor Failure F4E1 F4E1 — Shorted Sensor

All Maytag codes → All microwave codes →

Verified against manufacturer documentation: maytag.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.