Samsung Split Type, Multi System and VRF System AC Error Codes and Troubleshooting; Samsung AC Error Codes and Troubleshooting Samsung Split Type AC Error Codes Indoor Display Error and Check Method; Error Codes Problem E101 Communication Error (Indoor Outdoor) E102 Communication Error (Indoor Outdoor) E121 ROOM TH sensor error E122 INDOOR MID, INDOOR IN PIPE-TH sensor error E154 Fan Error (Indoor) E162 EEPROM Error (Indoor) E163 Option Error E203 Time out Comm. (Inv Micom Main Micom) E221 OUT-TH(Outdoor Temperature) Sensor Error E231 CON-TH(Cond Temperature) Sensor Error E251 DIS-TH(Discharge Temperature) Sensor Error E416 DIS-TH(Discharge Temperature) Over Error E422 EEV or Valve Close error-Self diagnosis E440 Prohibit Operation Condition Error (Heating) E441 Prohibit Operation Condition Error (Cooling) E458 Fan Error(Outdoor) E461 Comp Starting Error E462 AC Input I_Limit Trip Error E464 IPM Over Current(O.C) Error E465 Comp V_limit/I_limit Error E466 DC-Link Voltag...