Lennox LIFHC009180P431-C Owner's Manual page 12

Indoor EEPROM (Electrically Erasable Programmable
1
Read-Only Memory) error
2 Indoor and outdoor unit communication malfunction
3 Indoor fan speed malfunction
4 Indoor room temperature sensor error
5 Evaporator coil temperature sensor error
6 Refrigerant leak detection system malfunction
7 Water level alarm malfunction
Dual indoor unit (twin model only) communication
8
malfunction
9 Other twin model malfunction
10 Overload protection
11 Outdoor temperature sensor error
12 Outdoor condenser pipe sensor error
13 Discharge air temperature sensor error
Outdoor EEPROM (Electrically Erasable
14
Programmable Read-Only Memory) error
15 Outdoor fan speed (DC fan motor only) malfunction
Inverter module IPM protection
16
17
High/Low voltage protection
Compressor top overheating protection
18
Outdoor low temperature protection
19
Compressor drive error
20
Mode con ict
21
22 Compressor low-pressure protection
23
Outdoor IGBT sensor error
24 Indoor unit communication malfunction
 Page 12 
1 O
2 O
4 O
5 O
6 O
7 O
8 O
9 O
10 O
1 On
2 On
3 On
4 On
5 On
6 On
1 Flash
2 Flash
3 Flash
4 Flash
5 Flash
6 Flash
7 Flash
8 Flash
11 On
E0
E 1
E3
E4
E5
EC
EE
E8
E9
F0
F 1
F2
F3
F4
F5
P0
P 1
P2
P3
P4
P5
P6
P7
fa