Carrier 40QSM009DS - Outdoor Unit Error Display; For 9 K-24 K Outdoor Unit; For 36 K-48 K Outdoor Unit

88
16.2 Outdoor unit error display
For 18K-24K outdoor unit:
No.
Problems
LED2
(Green)
LED1
(Red)
IU display
1
standby for normal
O
X
2
Operation normally
X
O
3
Compressor drive board EEPROM error
O
☆
E5
4
IPM malfunction or IGBT over-strong current protection
☆
X
P0
5
Over voltage or too low voltage protection
O
O
P1
6
Inverter compressor drive error
X
☆
P4
7
Inverter compressor drive error
☆
O
P4
8
Communication malfunction between main control board
and driver board
☆
☆
P4
For 36K-60K Outdoor Unit
No
Problems
Error Code
1
Communication malfunction between indoor and outdoor units
E1
2
Current overload protection
F0
3
Outdoor ambient temperature sensor (T4 ) malfunction
F1
4
Condenser coil temperature sensor (T3) malfunction
F2
5
Compressor discharge temperature sensor (T5) malfunction
F3
6
Outdoor unit EEPROM parameter error
F4
7
Outdoor fan speed malfunction
F5
8
Inverter module (IPM) malfunction
P0
9
Over-voltage or under-voltage protection
P1
10
Compressor top high temperature protection (OLP)
P2
11
Low ambient temperature cut off in heating
P3
12
Compressor drive malfunction
P4
13
High temperature protection of indoor coil in heating
J0
14
Outdoor temperature protection of outdoor coil in cooling
J1
15
Temperature protection of compressor discharge
J2
16
PFC module protection
J3
17
Communication malfunction between control board and IPM board
J4
18
High pressure protection
J5
19
Low pressure protection
J6
20
Outdoor IPM module temperature sensor malfunction
P7
21
AC voltage protection
J8