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(Errors detected by IPDU featuring in outdoor unit - typical examples)
Check code
Outdoor 7-segment display
Sub-code
F
1
3
–
H
0
1
–
H02
–
H03
–
P
0
7
–
0 : IGBT circuit
1 : Position detection circuit error
3 : Motor lockup error
E : Inverter DC voltage error
P22
(outdoor fan)
Note: Although letters 0 to F appear
at locations indicated by " ",
please ignore them.
P
2
6
–
P
2
9
–
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.
Display of receiving unit
TCC-LINK
Indicator light block
central control
or main remote
Operation Timer
Ready
controller
Flash
display
Error in temperature
F
1
3
A
L
T
sensor built into indoor
IGBT (TH)
H
0
1
C
H02
Compressor error (lockup) Compressor lockup is detected.
Current detection circuit
H03
error
Heat sink overheating
P
0
7
A
L
T
error
P
2
2
A
L
T
O
Activation of IGBT (IPM)
P
2
6
A
L
T
short-circuit protection
Compressor position
P
2
9
A
L
T
detection circuit error
90
113
Typical fault site
Temperature sensor built into indoor IGBT (TH)
has been open / short-circuited.
Inverter current (Idc) detection circuit detects
o
m
p
e r
s s
r o
b
e r
a
k
d
o
w
n
overcurrent.
Abnormal current is detected while inverter
compressor is turned off.
Temperature sensor built into IGBT (TH) detects
overheating.
u
d t
o
r o
a f
n
P I
D
U
e
r r
r o
O
u
d t
o
r o
a f
n
P I
Short-circuit protection for compressor motor
driver circuit components is activated (momentary
overcurrent).
Compressor motor position detection error is
detected.
Description of error
D
U
d
e
e t
c
s t
r e
o r
. r
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Troubleshooting
