Troubleshooting
Samsung Electronics 4-5
No. Code Explanation
17 E-205 Communication error on all PBA within the outdoor unit C-Box, communication cable error.
18 E-206 E206-C002 : Fan PBA communication error.
19 E-221 Error on outdoor temperature sensor of outdoor unit (Short or open).
20 E-231 Error on COND OUT temperature sensor of main outdoor unit (Short or open).
21 E-241 COND OUT sensor in detached.
22 E-251 Error on discharge temperature sensor of compressor 1 (Short or open).
23 E-262 Discharge temperature sensor of compressor 1 is detached from the sensor holder on the pipe.
24 E-266 Top sensor of compressor 1 is detached.
25 E-269 Suction temperature sensor is detached from the sensor holder on the pipe.
26 E-276 Error on Top sensor of compressor 1(Short or open).
27 E-291 Refrigerant leakage or error on high pressure sensor(Short or open).
28 E-296 Refrigerant leakage or error on low pressure sensor(Short or open).
29 E-308 Error on suction temperature sensor(Short or open).
30 E-311 Error on temperature sensor of double layer pipe/liquid pipe(sub heat exchanger)(Short or open).
31 E-321 Error on EVI(ESC) IN temperature sensor(Short or open).
32 E-322 Error on EVI(ESC) OUT temperature sensor(Short or open).
33 E-346 Error due to operation failure of Fan2.
34 E-347 Motor wire of Fan2 is not connected.
35 E-348 Lock error on Fan2 of outdoor unit.
36 E-353 Error due to overheated motor of outdoor unit's Fan2.
37 E-355 Error due to overheated IPM of Fan2.
38 E-378 Error due to overcurrent of Fan2.
39 E-383 Error due to special overcurrent of Fan2.
40 E-386 Over-voltage/low-voltage error of Fan2.
41 E-387 Hall IC connection error of Fan2.
42 E-389 V-limit error on Fan2 of compressor.
43 E-391 Error due to Data Flash of Fan2.
44 E-393 Output current sensor error of Fan2.
45 E-396 DC voltage sensor error of Fan2.
46 E-399 Heat sink temperature sensor error of Fan2.
47 E-407 Compressor operation stop due to high pressure protection control.
48 E-410 Compressor operation stop due to low pressure protection control or refrigerant leakage.
49 E-416 Compressor operation stop due to discharge temperature protection control.
50 E-425 Phase reversal or phase failure(3Ø outdoor unit wiring, R-S-T-N),connection error on 3 phase input.
51 E-428 Compressor operation stop due to abnormal compression ratio.
52 E-438
EVI(ESC) EEV leakage or internal leakage of intercooler or incorrect connector insertion of EVI(ESC)
EEV.
53 E-439 Error due to refrigerant leakage.
54 E-440 Heating mode restriction due to high air temperature.
55 E-441 Cooling mode restriction due to low air temperature.
56 E-442 Refrigerant charging restriction in heating mode when air temperature is over 15°C.
57 E-443 Operation prohibited due to low pressure.
58 E-445 CCH is detached.
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