4-26 Samsung Electronics
Wired remote controller (cont.)
Error mode Contents Measure
Product operation in
error condition
Error type
Outdoor unit/
Compressor/Indoor
unit
[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
[Inverter] OTP error
Check EEPROM DATA
Check the normal operation of PCB
Operation Off
Outdoor unit
protection control
error
Error on IPM Heat Sink sensor of
inverter 1 (Short or Open)
Check outdoor inverter PBA Operation Off
Outdoor sensor
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
H/W DC_Link Over Voltage Error
Check AC power
Check reactor wire
Check outdoor PBA
Operation Off
Outdoor unit
protection control
error.
PFC Overload (Over current) Error Check outdoor inverter PBA Operation Off
Outdoor unit
protection control
error.
Error on input current sensor of
inverter 1 (Short or Open)
- Operation Off
Outdoor sensor
error
AC Input Voltage Sensor Error
Check AC power
Check reactor wire
Check outdoor inverter PBA
Operation Off
Outdoor sensor
error
IPM over heat error on inverter 1 Check outdoor inverter PBA Operation Off
Outdoor unit
protection control
error.
Gas leak error
Check the coolant charging status
Check the indoor EVA sensor
Check if the outdoor unit service value is open
Check that the indoor/outdoor installation
pipe/wiring are correct
Operation Off
Self diagnostic
error
Capacities not matched Check the option code of the indoor unit Operation Off
Outdoor unit
protection control
error
Inverter EEPROM CheckSum error Check outdoor PBA Operation Off
Self diagnostic
error
Communication error between
the indoor unit and wired remote
controller
Check the connection wire between the indoor
unit and the wired remote controller
Normal operation
Wired remote
controller error
Communication error between
the Master and Slave wired remote
controllers
Check the option switch for defining the
Master and Slave (only one Master and one
Slave can exist)
Normal operation
Wired remote
controller error
COM1/COM2 cross installation error
Check that wired remote controller is
connected to the COM2 terminal of the indoor
unit
Normal operation
Wired remote
controller error
Wired remote controller COM2
option setting error
Check that Com1, Com2 setting DIP switch is
set to Com2
Normal operation
Wired remote
controller error
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