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∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.
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Lamp indication
Operation
Timer Ready
Alternate flash
Operation
Timer Ready
Alternate flash
Operation
Timer Ready
Simultaneous flash
Operation
Timer Ready
Simultaneous flash
Operation
Timer Ready
Flash
Operation
Timer Ready
Simultaneous flash
Operation
Timer Ready
Simultaneous flash
Check code
F01
F02
P10
F04
F06
F07
F08
F12
F13
F15
F29
F31
H01
H02
H03
H04
H06
L03
L07
L08
L09
L10
L20
L29
L30
L31
Cause of trouble occurrence
Heat exchanger sensor (TCJ) error
Heat exchanger sensor (TC) error Indoor unit sensor error
Heat exchanger sensor (TA) error
Discharge temp. sensor (TD) error
Temp. sensor (TE) error
Temp. sensor (TL) error
Temp. sensor (TO) error Sensor error of outdoor unit ∗1
Temp. sensor (TS) error
Temp. sensor (TH) error
Temp. Sensor miswiring (TE, TS)
Indoor EEPROM error
Outdoor EEPROM error
Compressor break down Outdoor compressor system error ∗1
Compressor lock
Current detection circuit error } Power supply, outdoor P.C. board error
Case thermostat worked. }
Compressor overheat, outdoor wiring error
PS pressure sensor error, Outdoor unit
low pressure protective operation low pressure system error
Duplicated header indoor units
There is indoor unit of group connection → AUTO address
in individual indoor unit.
Unsetting of group address
Missed setting
(Unset indoor capacity)
Unset model type (Service board)
Duplicated indoor central addresses
Outdoor unit and other error
Outside interlock error
Negative phase error
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⎫
⎬
⎭
⎫
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⎪
⎬
⎪
⎪
⎪
⎪
⎪
⎭
* If group construction and
address are not normal
power supply turned on,
automatically goes to
address setup mode.