Error Code O-FF
Refrigerator is in Cooling Off mode — not cooling
Minor
Usually easy to fix - may resolve on its own
Also displayed as: O-FF on temperature display
What This Means
Cooling Off mode intentionally activated by pressing Freezer Key + Lighting Key + Fridge Key for 5 seconds
What actually causes this:
Cooling Off mode was accidentally activated (common during transport or display), or was intentionally set for exhibition.
First Thing to Check
Check if 'O-FF' is showing on the display — if so, hold Freezer + Lighting + Fridge keys together for 5 seconds to cancel.
How to Fix
- 1
Press Freezer Key + Lighting Key + Fridge Key simultaneously for 5 seconds to cancel Cooling Off mode
- 2
Verify compressor resumes operation
This Error Applies To
Samsung RH22H9010S Series Refrigerators (2018) (2018–present)
Related Error Codes
Display panel and main control board cannot communicate
Main control board and inverter board cannot communicate
I/O expander chip on main board has a communication fault
There is a configuration mismatch between the panel and main boards
Unit is in forced manual operation / cooling test mode
Unit is in forced defrost mode