Samsung · Oven Serious

C-F1 — EEPROM Read/Write Error

The main control board can't read from or write to its onboard memory (EEPROM). The board has lost its calibration or configuration data.

Keep using it?
Limited use only
DIY difficulty
Hard
Verified against
samsung.com ↗

How to fix it

  1. Power-cycle the oven at the breaker for 5+ minutes.
  2. If the code clears but returns, the EEPROM is failing — this isn't a field-serviceable repair.
  3. Replace the main control board.
  4. Confirm incoming voltage is steady (consider a surge protector for the appliance circuit if surges are recurring).

Why it happens

Typical signs: C-F1 displayed at power-up · Settings won't save · Oven won't accept cook commands · Code returns immediately after reset

  • Corrupted EEPROM data Memory data corrupted by a brownout or surge.
  • Failed EEPROM chip Hardware failure on the main PCB.
  • Main control board failure Broader board fault preventing memory access.

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.

  • Samsung oven main control board Common replacement
    Amazon →

More Samsung oven codes

---- ---- — Invalid Temperature Setting -dC- -dC- — Flex Duo Divider Missing or Removed -dE- -dE- — Flex Duo Divider Not Installed bAd LinE bAd LinE — Bad Power Connection C-10 Range C-10 — Temperature Sensor Reading Error C-20 C-20 — Oven Temperature Sensor Open/Short

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Frequently asked questions

What does the C-F1 code mean on a Samsung oven?

The main control board can't read from or write to its onboard memory (EEPROM). The board has lost its calibration or configuration data.

What causes the C-F1 code on a Samsung oven?

Corrupted EEPROM data: Memory data corrupted by a brownout or surge. Failed EEPROM chip: Hardware failure on the main PCB. Main control board failure: Broader board fault preventing memory access.

Is it safe to keep using a Samsung oven with a C-F1 error?

Limited use only. This is rated a serious-severity fault.

How do I fix C-F1 on a Samsung oven?

Power-cycle the oven at the breaker for 5+ minutes. If the code clears but returns, the EEPROM is failing — this isn't a field-serviceable repair. Replace the main control board.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: samsung.com.