Troubleshooting
4-24
Error mode Contents Measure
Product operation in
error condition
Error type
Outdoor unit/
Compressor/
Indoor unit
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
IPM Overheat Error for
Outdoor Unit Inverter Comp.
Change the location of the outdoor unit if the
temperature is abnormally high when the heatproof
plate is checked.
Reconnect the screws.
Replace the outdoor unit fan.
Replace the PBA of the outdoor unit.
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
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
Wired remote controller (cont.)
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