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DIAGNOSIS AND SOLUTION
Outdoor Unit Error Display
NO.
1
Communication malfunction between indoor and outdoor units
2
Current overload protection
3
Outdoor ambient temperature sensor (T4 ) malfunction
4
Condenser coil temperature sensor (T3) malfunction
5
Compressor discharge temperature sensor (T5) malfunction
6
Outdoor unit EEPROM parameter error
7
Outdoor fan speed malfunction
8
Inverter module (IPM) malfunction
9
Over-voltage or under-voltage protection
10
Compressor top high temperature protection (OLP)
11
Low ambient temperature cut off in heating
12
Compressor drive malfunction
13
High temperature protection of indoor coil in heating
14
Outdoor temperature protection of outdoor coil in cooling
15
Temperature protection of compressor discharge
16
PFC module protection
17
Communication malfunction between control board and IPM board
18
High pressure protection
19
Low pressure protection
20
Outdoor IPM module temperature sensor malfunction
21
AC voltage protection
Table 15—Diagnostic Table Outdoor Units
PROBLEMS
18
ERROR CODE
E1
F0
F1
F2
F3
F4
F5
P0
P1
P2
P3
P4
J0
J1
J2
J3
J4
J5
J6
P7
J8
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