Troubleshooting
Samsung Electronics 4-11
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Diagnosis and Adjustment (Error Code)
ـ Error code related to the Communications / Settings / HW
(cont.)
Error mode Cause
E-214
When number of MCU is not set correctly on the outdoor unit or when two or more MCU was installed some of
them have the same address
E-215 When two different MCU’s have same address value on the rotary switch
E-216 When indoor unit is not installed to a MCU port but the switch on the port is set to On.
E-217
hen indoor unit is connected to a MCU port but indoor unit is assigned to a MCU and the switch
on the port is set to Off
E-218
When there’s at least one or more actual number of indoor unit connection compared to number of indoor
units assigned to MCU
E-219 Error on temperature sensor located on MCU intercooler inlet (Short or Open)
E-220 Error on temperature sensor located on MCU intercooler outlet (Short or Open)
E-221 Error on outdoor temperature sensor of outdoor unit (Short or open)
E-224 Error on water temperature sensor of main outdoor unit (Short or Open)
E-225 Error on control box temperature sensor of main outdoor unit (Short or Open)
E-231 Error on COND OUT temperature sensor of main outdoor unit (Short or Open)
E-241 COND OUT sensor is detached
E-251 Error on discharge temperature sensor of compressor 1 (Short or Open)
E-257 Error on discharge temperature sensor of compressor 2 (Short or Open)
E-262 Discharge temperature sensor of compressor 1 is detached from the sensor holder on the pipe
E-263 Discharge temperature sensor of compressor 2 is detached from the sensor holder on the pipe
E-266 Top sensor of compressor 1 is detached
E-267 Top sensor of compressor 2 is detached
E-269 Suction temperature sensor is detached from the sensor holder on the pipe
E-276 Error on top sensor of compressor 1 (Short or Open)
E-277 Error on top sensor of compressor 2 (Short or Open)
E-291 Refrigerant leakage or error on high pressure sensor (Short or Open)
E-296 Refrigerant leakage or error on low pressure sensor (Short or Open)
E-308 Error on suction temperature sensor (Short or Open)
E-311 Error on temperature sensor of double layer pipe/liquid pipe(sub heat exchanger) (Short or Open)
E-321 Error on EVI (ESC) IN temperature sensor (Short or Open)
E-322 Error on EVI (ESC) OUT temperature sensor (Short or Open)
E-323 Error on suction sensor 2 (Short or Open)
E-346 Error due to operation failure of Fan2
E-347 Motor wire of Fan2 is not connected
E-348 Lock error on Fan2 of outdoor unit
E-353 Error due to overheated motor of outdoor unit's Fan2
E-355 Error due to overheated IPM of Fan2
E-361 Error due to operation failure of inverter compressor 2
E-364 Error due to over-current of inverter compressor 2
E-365 V-limit error of inverter compressor 2
E-366 Error due to over voltage /low voltage of inverter PBA2
E-367 Error due to unconnected wire of compressor 2
E-368 Output current sensor error of inverter PBA2
E-369 DC voltage sensor error of inverter PBA2
E-371 Error due to the INV2 Data Flash
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