Samsung AC018KN4DCH Service Manual page 65

Wired remote controller
Error mode Contents
[Inverter] Compressor
startup error
[Inverter] Total current
error/PFC over current
error
OLP Overheat and Comp. Stop
[Inverter] IPM over current
error
Compressor V limit error
DC LINK over/low voltage error
[Inverter] Compressor rotation
error
[Inverter] Current sensor error
[Inverter] DC LINK voltage
sensor error
EEPROM Read/Write error
[Inverter] OTP error
AC ZERO CROSSING SIGNAL
OUT error
Compressor LOCK error
Outdoor fan 2 error
(cont.)
Check the compressor connection status.
Check the resistance between difference phases of
the compressor.
Check the input power
Check the coolant charging status
Check the normal operation of outdoor fan
Reconfirm the opening of the service valve.
Check for leaks from the connection part of the pipe and
product or from the pipe joint.
Change the outdoor unit location and direction.
Refill the coolant after checking the leaking part.
Reinstall the outdoor unit set.
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
Check the compressor connection status
Check the resistance between difference phases of the
compressor
Check input power
Check AC power connection
Check the compressor connection status
Check the resistance between difference phases of the
compressor
Check EEPROM DATA
Check the normal operation of PCB
Check the input power connection
Check the status of RY21 and R200 in the INVERTER PCB
-
Check EEPROM DATA
Check the normal operation of PCB
Check the input power status
Check the compressor connection status
Check the resistance between difference phases of the
compressor
Check the input power connection status
Check the connection status of the motor and the
outdoor unit PCB
Check the indoor/outdoor unit fuse
4-25
Measure
Troubleshooting
Product operation
in error condition
Error type
Outdoor unit/
Compressor/
Indoor unit
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Restart in 3 minutes protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Outdoor unit
Operation Off protection
control error
Self diagnostic
Operation Off
error