Troubleshooting
59
Samsung Electronics
The error indicated on the PCB display of outdoor unit(cont.)
Outdoor unit EEV open error (self diagnosis)
EEV
Outdoor unit EEV close error (self diagnosis)
EEV
High temperature (over 30˚C) of outdoor as heating mode
Operation mode
Low temperature (under -5˚C) of indoor as cooling mode
Operation mode
Wrong connection between communication and power cable
Wiring indoor and outdoor
Service valve, EEV,
Inverter compressor starting failure (5 times)
Compressor terminal,
Compressor wire,
Outdoor controller
Compressor trip by input current limit control
EEV, Gas over charge,
Outdoor controller
Compressor trip by OLP temperature limit control
Outdoor fan, Compressor,
Outdoor controller
Outdoor fan, Compressor,
Compressor peak current protection
Compressor wire,
Outdoor controller
Outdoor fan, EEV,
Compressor overload protection by current
Service valve,
Outdoor controller
DC-link voltage error (under 150V or over 410V)
Power voltage,
(This error might display for a few seconds after power cut)
Outdoor controller
Compressor terminal,
Compressor rotation error
Compressor wire,
Outdoor controller
Current sensor error
Outdoor controller
DC-link voltage sensor error
Outdoor controller
Outdoor fan, EEV,
Compressor overload protection
Service valve,
Outdoor controller
EEPROM error
Outdoor controller
AC line zero-crossing detection circuit error
Outdoor controller,
Terminal Block
NO GAS error (self diagnosis)
Piping (gas leak)
Main checking Point
Display
Explanation
DB98-20241A(2)_2 05/1/25 5:07 AM Page 59
