– 170 –
(Errors detected by IPDU featuring in SMMS-i standard outdoor unit - typical examples)
Note: The above check codes are examples only, and different check codes may be displayed depending on the outdoor unit configuration
(e.g. a Super heat recovery multi system). For details, see the service manual for the outdoor unit.
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
F13
01: Compressor 1
02: Compressor 2
03: Compressor 3
TLA31F
Error in temperature
sensor built into indoor
IGBT (TH)
Temperature sensor built into indoor IGBT (TH)
has been open/short-circuited.
H01
01: Compressor 1
02: Compressor 2
03: Compressor 3
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Inverter current (Idc) detection circuit detects
overcurrent.
H02
01: Compressor 1
02: Compressor 2
03: Compressor 3
H02
Compressor error (lockup) Compressor lockup is detected
H03
01: Compressor 1
02: Compressor 2
03: Compressor 3
H03
Current detection circuit
error
Abnormal current is detected while inverter
compressor is turned off.
P04
01: Compressor 1
02: Compressor 2
03: Compressor 3
TLA40P
Activation of high-pressure
SW
High-pressure SW is activated.
P07
01: Compressor 1
02: Compressor 2
03: Compressor 3
TLA70P
Heat sink overheating
error
Temperature sensor built into IGBT (TH) detects
overheating.
P22
0
: IGBT circuit
1
: Position detection circuit error
3
: Motor lockup error
4
: Motor current detection
C
: TH sensor error
D
: TH sensor error
E
: Inverter DC voltage error
(outdoor fan)
Note: Although letters 0 to F appear
at locations indicated by “
”,
please ignore them.
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P26
01: Compressor 1
02: Compressor 2
03: Compressor 3
TLA62P
Activation of G-Tr (IGBT)
short-circuit protection
Short-circuit protection for compressor motor
driver circuit components is activated (momentary
overcurrent).
P29
01: Compressor 1
02: Compressor 2
03: Compressor 3
TLA92P
Compressor position
detection circuit error
Compressor motor position detection error is
detected.
Operation
Timer Read
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