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
Other Error Codes for RH22H9010SR
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