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ON, Blinking, OFF, Alternate: Two LEDs blink alternately, Simultaneous: Two LEDs blink simultaneously
Check code
TCC-LINK central control
and remote controller
C15
F04
F06
F08
H01
H02
H03
H06
L29
L31
P03
P04
P22
P26
P29
Lamp indication
Block indication
OPERATION TIMER PREPARING
Blinking
Main faulty location
Thermal storage unit error
Outdoor unit heat discharge sensor TD error
Outdoor unit temp. sensor TE, TS error
Outdoor unit outside air temp. sensor TO error
Compressor breakdown
Compressor locking
Current detect circuit error
Low-pressure system error
Other outdoor unit errors
Phase sequence error or others
Abnormal outdoor unit discharge temperature
High-pressure system error
Outdoor unit fan alarm
Inverter Idc activated
Position detect error
Description of failures
Typical error of thermal storage unit (Details are checked by R/C.)
When open-circuit or short-circuit of TD is detected
When open-circuit or short-circuit of TE,TS is detected
When open-circuit or short-circuit of TO is detected
Short-circuit current Idc after direct current excitation is detected when
reaching minimum frequency in current release control.
When compressor locking is detected
When abnormal current is detected by AC-CT or when phase loss is
detected
Ps pressure sensor error. Low-pressure protection circuit is activated.
Other outdoor unit errors 1) MCU communication error between PDU and
CDB, 2) IGBT heatsink temp. detect error
When phase sequence of 3-phase current is abnormal (thermo sensor
OFF operation continued) or other errors
When discharge temperature release control detects an error
When high-pressure switch or IOL is activated or when high-pressure
release control by TE detects an error
When outdoor unit fan drive circuit error (overcurrent, locking, etc.) is
detected
When short-circuit prevention control for compressor drive circuit devices
(G,Tr, IGBT) is activated
When compressor motor position error is detected
Simultaneous
Alternate
Alternate
Alternate
Simultaneous
Simultaneous
Alternate
Alternate
Alternate
Alternate
Alternate
(Main errors detected by outdoor unit)
Note: The above check codes are typical examples. They vary with outdoor unit (including thermal storage unit) of combination. For details, see the Service Guide of
applicable outdoor unit.
A/C operation
Auto
reset
Operation
continuation
Check Code Table (Outdoor Unit)
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