Troubleshooting
Samsung Electronics 4-43
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Diagnosis and Adjustment (Error Code)
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Error code related to the Communications / Settings / HW
(cont.)
CODE Explanation
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-374 Heat sink temperature sensor error of inverter PBA2
E-378 Error due to overcurrent of Fan2
E-385 Error due to input current of inverter 2
E-386 Over-voltage/low-voltage error of Fan2
E-387 Hall IC connection error of Fan2
E-389 V-limit error on Fan2 of compressor
E-393 Output current sensor error of Fan2
E-396 DC voltage sensor error of Fan2
E-399 Heat sink temperature sensor error of Fan2
E-400 Error due to overheat caused by contact failure on IPM of Inverter PBA2
E-407 Compressor operation stop due to high pressure protection control
E-410 Compressor operation stop due to low pressure protection control or refrigerant leakage
E-416 Compressor operation stop due to discharge temperature protection control
E-425
Phase reversal or phase failure (3Ø outdoor unit wiring, R-S-T-N ), connection error on 3 phase
input
E-428 Compressor operation stop due abnormal compression ratio
E-438
EVI (ESC) EEV leakage or internal leakage of intercooler or incorrect connector insertion of EVI
(ESC) EEV
E-439 Error due to refrigerant leakage
E-440 Heating mode restriction due to high air temperature
E-441 Cooling mode restriction due to low air temperature
E-442 Refrigerant charing restriction in heating mode when air temperature is over 15 °C
E-443 Operation prohibited due to low pressure
E-445 CCH is deatched
E-446 Error due to operation failure of Fan1
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