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Troubleshooting
Wired remote controller
Error mode
Contents
IPM Overheat Error for
Outdoor Unit Inverter Comp.
Gas leak error
Capacities not matched
Communication error
between the indoor
unit and wired remote
controller
Communication error
between the Master
and Slave wired remote
controllers
COM1/COM2 cross
installation error
Wired remote controller
COM2 option setting error
(cont.)
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.
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
Check the option code of the indoor unit
Check the connection wire between the indoor
unit and the wired remote controller
Check the option switch for defining the Master
and Slave (only one Master and one Slave can
exist)
Check that wired remote controller is connected to
the COM2 terminal of the indoor unit
Check that Com1, Com2 setting DIP switch is set to
Com2
Measure
4-26
Product operation
in error condition
Error type
Outdoor unit/
Compressor/
Indoor unit
Outdoor unit
Operation Off
protection
control error
Self diagnostic
Operation Off
error
Outdoor unit
Operation Off
protection
control error
Wired remote
Normal operation
controller
error
Wired remote
Normal operation
controller
error
Wired remote
Normal operation
controller
error
Wired remote
Normal operation
controller
error
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