Table of Contents
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1. Contents of Remote Controller Switch Alarm Display
Remote controller is
Serial
detecting error signal from
communication
indoor unit.
errors
Mis-setting
Indoor unit is detecting error signal from remote controller (and system controller).
Indoor unit is detecting error
signal from outdoor unit.
Improper setting of indoor unit
or remote controller.
1
During auto. address setting,
number of connected units
does not correspond to
number set.
When turning on the power
2
supply, number of connected
units does not correspond to
number set.
(Except R.C. address is "0.")
Indoor unit communication
error of group control wiring.
3
Improper setting.
4
5
Protective device in indoor
Activation of
unit is activated.
protective
device
6
Possible cause of malfunction
Error in receiving serial communication signal.
(Signal from main indoor unit in case of group control)
Ex: Auto address is not completed.
Error in transmitting serial communication signal.
Error in receiving serial communication signal.
When turning on the power supply, the number of connected
indoor units does not correspond to the number set. (Except R.C.
address is "0.")
Error of the outdoor unit in receiving serial communication signal
from the indoor unit.
Indoor unit address setting is duplicated.
Remote controller address connector (RCU. ADR) is duplicated.
(Duplication of main remote controller)
Starting auto. address setting is prohibited.
This alarm message shows that the auto address connector CN100
is shorted while other RC line is executing auto address operation.
Error in auto. address setting. (Number of connected indoor units
is less than the number set)
Error in auto. address setting. (Number of connected indoor units
is more than the number set)
No indoor unit is connected during auto. address setting.
Error of outdoor unit address setting.
Error of main indoor unit in receiving serial communication signal
from sub indoor units.
This alarm message shows when the indoor unit for multiple-use is
not connected to the outdoor unit.
Duplication of main indoor unit address setting in group control.
There are 2 or more indoor units
controllers which have operation
mode priority in 1 refrigerant circuit.
Group control wiring is connected to individual control indoor unit.
Indoor unit address is not set.
Capacity code of indoor unit is not set.
4-way valve operation failure
Duplication of outdoor R.C. address setting.
Capacity code of outdoor unit is not set.
Thermal protector in indoor unit fan motor is activated.
Improper wiring connections of ceiling panel.
Float switch is activated.
5 - 2
Mini ECO-i SYSTEM
ON:
Priority set remote controller
Non-priority set remote controller
Trouble Diagnosis
Blinking:
OFF:
Wired
Wireless
remote
remote controller
control
receiver display
display
<E01>
<E02>
<<E03>>
E04
<E06>
E08
<<E09>>
E12
E15
E16
E20
E25
E18
L02
<L03>
L05
L06
L07
L08
<<L09>>
L18
L04
L10
<<P01>>
<<P09>>
<<P10>>
Continued
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