Troubleshooting
Samsung Electronics
75
Error mode
Contents
Measure
Product operation in
error condition
Error type
Outdoor unit/
Compressor/Indoor unit
Outdoor fan 1 error
Check input power connection status .
Check the connection status between the motor and
outdoor unit PCB
Check indoor/outdoor fuse.
Operation Off
Self diagnostic
error
[Inverter] Compressor startup
error
Check the compressor connection status .
Check the resistance between difference phases of the
compressor.
Operation Off
Outdoor unit
protection
control error
[Inverter] Total current error/
PFC over current error
Check the input power.
Check the coolant charging status .
Check the normal operation of outdoor fan.
Operation Off
Outdoor unit
protection
control error
OLP over heat and comp stop
Check OLP sensor.
Operation Off
Self diagnostic
error
[Inverter] IPM over current error
Check coolant charging.
Check the compressor connection status and normal
operation .
Check the obstacles around the indoor and outdoor
units.
Check whether the outdoor unit service valve is open.
Check whether the indoor/outdoor installation pipe/
wiring are correct.
Operation Off
Outdoor unit
protection
control error
Compressor V limit error
Check the compressor connection status .
Check the resistance between difference phases of the
compressor.
Operation Off
Outdoor unit
protection
control error
DC LINK over/low voltage error
Check input power .
Check AC power connection.
Restart in 3 minutes
Outdoor unit
protection
control error
[Inverter] Compressor rotation
error
Check the compressor connection status .
Check the resistance between difference phases of the
compressor.
Operation Off
Outdoor unit
protection
control error
[Inverter] Current sensor error
Check EEPROM DATA.
Check the normal operation of PCB.
Operation Off
Outdoor unit
protection
control error
[Inverter] DC LINK voltage
sensor error
Check the input power connection.
Check the status of RY21 and R200 in the INVERTER
PCB.
Operation Off
Outdoor unit
protection
control error
EEPROM read/write error
Check EEPROM of outdoor unit.
Operation Off
Outdoor Unit
error
[Inverter] OTP error
Check EEPROM DATA.
Check the normal operation of PCB.
Operation Off
Outdoor unit
protection
control error
IPM(IGBT Module) or PFCM
temperature sensor Error
Exchange INVERTER PBA.
Operation Off
Outdoor Unit
error
Outdoor fan 2 error
Check the input power connection status.
Check the connection status of the motor and the
outdoor unit PCB.
Check the indoor/outdoor unit fuse.
Operation Off
Self diagnostic
error
PFC Overload Error
Check reactor located in control plate.
If reactor is normal, exchange INVERTER PBA.
Operation Off
Outdoor Unit
error
Input current sensor error
Check Outdoor Inverter PBA.
Operation Off
Outdoor Unit
error
IPM is overheated
Check INVERTER PBA's temperature. Power off and cool
down INVERTER PBA, and then restart the outdoor unit.
Operation Off
Outdoor Unit
error
Wired remote controller (cont.)