Troubleshooting
Samsung Electronics 4-17
No. Error Code Meaning Remarks
20 E425 Reverse phase or open phase
Check whether 3 phase is reversed or opened.
21 E440
Heating operation restricted at outdoor
temperature over Theat_high value
(default:30°C)
1. Check the range of temperature limited
for heating operation
2. Check the outdoor temperature sensor
22 E441
Cooling operation restricted at outdoor
temperature below Tcool_low value
(default:0°C)
1. Check the range of temperature limited
for cooling operation
2. Check the outdoor temperature sensor
23 E458 Fan speed error FAN1 ERROR
24 E461
Error due to operation failure of inverter compressor
-
25 E462 System stop due to full current control -
26 E463 Over current trip / PFC over current error Check OLP sensor
27 E464 IPM Over Current(O.C)
1. Check if the service valve is open
2. Check the state of refrigerant
3. Check if connecting wire and the pipe are OK
4. Check the compressor
28 E465 Comp. Over load error -
29 E466 DC-Link voltage under/over error Check AC Power and DC Link Voltage
30 E467
Error due to abnormal rotation of the
compressor or unconnected wire of compressor
Check Comp wire
31 E468 Error on current sensor (Short or Open) Check Outdoor Inverter PBA
32 E469 Error on DC-Link voltage sensor (Short or Open) -
33 E470
Outdoor unit EEPROM Read/Write error (Option)
Check Outdoor EEPROM Data
34 E471 Outdoor unit EEPROM Read/Write error (H/W) Check Outdoor EEPROM PBA
35 E474
Error on IPM Heat Sink sensor of inverter 1
(Short or Open)
Check Outdoor Inverter PBA
36 E475 Error on inverter fan 2 FAN2 ERROR
37 E483 Overvoltage of H/W detect DC link Check AC Power
38 E484 PFC Overload (Over current) Error Check Outdoor Inverter PBA
39 E485
Error on input current sensor of inverter 1
(Short or Open)
Check Outdoor EEPROM PBA
40 E488 Inverter input voltage sensor error Check Outdoor Inverter PBA
41 E500 IPM over heat error on inverter 1 Check Outdoor Inverter PBA
42 E508 Smart install is not installed -
43 E554 Gas leak detected Check the refrigerant
44 E556
Error due to mismatching capacity of indoor and
outdoor unit
Check the indoor and outdoor unit capacity
45 E557 DPM remote controller option error Check the indoor option code
46 E563
Error due to mismatching indoor and outdoor unit
Check the outdoor EEPROM data and indoor
cycle option code
47 E590 Inverter EEPROM Checksum error -
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