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F12 – F12 ALT
Outdoor suction
temperature sensor (TS1)
error
Outdoor suction temperature sensor (TS1) has
been open/short-circuited.
F15 – F15 ALT
Outdoor temperature
sensor (TE1, TL) wiring
error
Wiring error in outdoor temperature sensors (TE1,
TL) has been detected.
F16 – F16 ALT
Outdoor pressure sensor
(Pd, Ps) wiring error
Wiring error in outdoor pressure sensors (Pd, Ps)
has been detected.
F22 – F22 ALT
Outdoor discharge
temperature sensor (TD3)
error
Outdoor discharge temperature sensor (TD3) has
been open/short-circuited.
F23 – F23 ALT
Low pressure sensor (Ps)
error
Output voltage of low pressure sensor (Ps) is zero.
F24 – F24 ALT
High pressure sensor (Pd)
error
Output voltage of high pressure sensor (Pd) is zero
or provides abnormal readings when compressors
have been turned off.
F31 – F31 SIM Outdoor EEPROM error
Outdoor EEPROM is faulty (alarm and shutdown
for header unit and continued operation for follower
unit)
H05 – H05
Outdoor discharge
temperature sensor (TD1)
wiring error
Wiring/installation error or detachment of outdoor
discharge temperature sensor (TD1) has been
detected.
H06 – H06
Activation of low-pressure
protection
Low pressure (Ps) sensor detects abnormally low
operating pressure.
H07 – H07 Low oil level protection
Temperature sensor for oil level detection (TK1-5)
detects abnormally low oil level.
H08
01: TK1 sensor error
02: TK2 sensor error
03: TK3 sensor error
04: TK4 sensor error
05: TK5 sensor error
H08
Error in temperature
sensor for oil level
detection (TK1-5)
Temperature sensor for oil level detection (TK1-5)
has been open/short-circuited.
H15 – H15
Outdoor discharge
temperature sensor (TD2)
wiring error
Wiring/installation error or detachment of outdoor
discharge temperature sensor (TD2) has been
detected.
H16
01: TK1 oil circuit error
02: TK2 oil circuit error
03: TK3 oil circuit error
04: TK4 oil circuit error
05: TK5 oil circuit error
H16
Oil level detection circuit
error
No temperature change is detected by
temperature sensor for oil level detection (TK1-5)
despite compressor having been started.
H25 – H25
Outdoor discharge
temperature sensor (TD3)
wiring error
Wiring/installation error or detachment of outdoor
discharge temperature sensor (TD3) has been
detected.
L04 – L04 SIM
Duplicated outdoor
refrigerant line address
Identical refrigerant line address has been
assigned to outdoor units belonging to different
refrigerant piping systems.
L06
Number of priority indoor units
(check code L05 or L06 depending
on individual unit)
L05 SIM
Duplicated priority indoor
unit (as displayed on
priority indoor unit)
More than one indoor unit has been set up as
priority indoor unit.
L06 SIM
Duplicated priority indoor
unit (as displayed on
indoor unit other than
priority indoor unit)
More than one indoor unit has been set up as
priority indoor unit.
L08 – (L08) SIM
Indoor group address not
set
Address setting has not been performed for one or
more indoor units (also detected at indoor end).
L10 – L10 SIM Outdoor capacity not set
Outdoor unit capacity has not been set (after P.C.
board replacement).
L17 – L17 SIM
Outdoor model
incompatibility error
Old model outdoor unit (prior to 3 series) has been
connected.
L18 – L18 SIM
Cooling/heating selection
unit error
Cooling/heating cycle error resulting from piping
error is detected.
L28 – L28 SIM
Too many outdoor units
connected
More than four outdoor units have been
connected.
Check code
Display of receiving unit
Typical fault site Description of error
Outdoor 7-segment display
TCC-LINK
central control
or main remote
controller
display
Indicator light block
Sub-code
Flash
Operation
Timer Read
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