Troubleshooting
4-26
Error mode
Contents
Measure
Product operation
in error condition
Error type
Outdoor unit/
Compressor/
Indoor unit
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.)