Carrier 38GJQ Series Installation Instructions Manual page 47

TROUBLESHOOTING (CONT)
This unit has on−board diagnostics. Error codes are displayed on the wired remote controller and the outdoor unit microprocessor board with
colored LED lights. Table 44 explains the error codes on both.
SIZES 48 − 56
ERRORS OF DEFINITION
The compressor is start up
IPM current protection
IPM temperature protection
PFC current protection
PFC temperature protection
Low voltage protection
High voltage protection
Low pressure protection
High pressure protection
High pressure switch protection
Capacitor charging error
Current protection
Memory card error
Compressor demagnetizing protection
Compressor de-synchronizing
Compressor phase lack
Compressor phase circuit detection error
Compressor current protection
Compressor overload protection
Compressor discharge temperature protection
Lack of refrigerant or jam protection
Normal operation
Frequency limitation for current protection
Oil returning mode
Defrosting mode
Frequency limitation for IPM temperature protection
Frequency limitation for PFC temperature protection
Frequency limitation for compressor overload protection
Frequency limitation for discharge temp. protection
Frequency limitation for low pressure protection
Frequency limitation for high pressure protection
Discharge temperature sensor error
Outside temperature sensor error
Suction temperature sensor error
Condenser temperature sensor error
Sub-cool temperature sensor error
Low pressure sensor error
High pressure sensor error
Fan motor protection
Driving board is connected
Testing board is connected
Computer is connected
Indoor unit 1 is connected
Indoor unit 2 is connected
Table 44—Malfunction Status Table
MAIN CONTROL DISPLAY FOR OUTDOOR UNIT
YELLOW LED RED LED
Flash 1 time
Flash 3 times
Flash 5 times
Flash 7 times
Flash 8 times
Flash 9 times
Flash 10 times
Flash 11 times
Flash 12 times
Flash 13 times
Flash 14 times
Flash 15 times
Flash 16 times
Flash 17 times
Flash 18 times
Flash 19 times
Flash 20 times
Flash 21 times
Flash 22 times
Flash 23 times
Flash 31 times
Flash 1 time
Flash 2 times
Flash 3 times
Flash 4 times
Flash 5 times
Flash 6 times
Flash 8 times
Flash 9 times
Flash 10 times
Flash 11 times
Flash 12 times
Flash 13 times
Flash 15 times
Flash 16 times
Flash 17 times
Flash 18 times
Flash 19 times
Flash 20 times
47
INDOOR UNIT
CODE
GREEN LED
H5
P8
HC
P8
PL
PH
E3
E8
E1
PU
E5
EE
HE
H7
U2
U1
L9
H3
E4
F0
F7
H1
EU
EU
F6
F5
F3
A7
H6
Flash 1 time
Flash 2 times
Flash 4 times
Flash 5 times
Flash 6 times
TESTING
BOARD
CODE
H5
P8
HC
P8
PL
PH
E3
E8
E1
PU
E5
EE
HE
H7
U2
U1
L9
H3
E4
F0
F8
F7
H1
EU
EU
LU
F9
Pn
F6
F5
F3
dc
A7
bC
dL
e1
H6