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FILE NO. SVM-
16041
Flash
F13
F13
H01
H01
H02
H02
H03
H03
P04
P04
P07
P07
P22
P22
ALT
ALT
ALT
P26
P26
P29
P29
OperationTimer Ready
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
(Errors detected by IPDU featuring in SMMS standard outdoor unit - typical examples)
ALT
ALT
ALT
Error in temperature
sensor built into indoor
IGBT (TH)
Temperature sensor built into indoor IGBT (TH)
has been open / short-circuited.
01: Compressor 1
02: Compressor 2
03: Compressor 3
01: Compressor 1
02: Compressor 2
03: Compressor 3
01: Compressor 1
02: Compressor 2
03: Compressor 3
01: Compressor 1
02: Compressor 2
03: Compressor 3
01: Compressor 1
02: Compressor 2
03: Compressor 3
Compressor breakdown
Inverter current (Idc) detection circuit detects
overcurrent.
Compressor lockup is detected
Compressor error (lockup)
Current detection circuit
error
Abnormal current is detected while inverter
compressor is turned off.
Activation of high-pressure
SW
High-pressure SW is activated.
Heat sink overheating
error
Temperature sensor built into IGBT (TH) detects
overheating.
P20
P20
ALT High-pressure protection
activation
High-pressure (Pd) sensor detected a value over
the criteria.
SMMS (Series 1)
04: Rotation difference error
06: Maximum rotation exceeded
08: Out of step
0A: Idc activation
0C: Fan lock
0d: Lock
0E: Sync error
0F: Control error
SMMS-i (Series 4)
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.
Outdoor fan IPDU error
Outdoor fan IPDU detects error.
01: Compressor 1
02: Compressor 2
03: Compressor 3
01: Compressor 1
02: Compressor 2
03: Compressor 3
Activation of G-Tr (IGBT)
short-circuit protection
Short-circuit protection for compressor motor
driver circuit components is activated (momentary
overcurrent).
Compressor position
detection circuit error
Compressor motor position detection error is
detected.
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.