SamsungRefrigerators2018–present

Samsung RH22H9010S Series Refrigerators (2018)

Covers Service manual exact match: RH22H9010SR/AA, Service manual exact match: RH29H90**, Service manual exact match: RH29H9000SR/AA, Service manual exact match: RH22H90**

7 error codes

18 parts documented

Error Codes

Click any code for detailed troubleshooting steps

Code	Meaning	Severity
44Er	Main control board and inverter board cannot communicate	Critical
46Er	I/O expander chip on main board has a communication fault	Critical
Fd	Unit is in forced defrost mode	Minor
FF	Unit is in forced manual operation / cooling test mode	Minor
O-FF	Refrigerator is in Cooling Off mode — not cooling	Minor
oP-Er / oP-Ch	There is a configuration mismatch between the panel and main boards	Moderate
PC-Er / PC-Ch	Display panel and main control board cannot communicate	Critical

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