Diagnosis And Solution - Carrier 38MBR series Service Manual

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 11—Diagnostic Table Outdoor Units
PROBLEMS
20
ERROR CODE
E1
F0
F1
F2
F3
F4
F5
P0
P1
P2
P3
P4
J0
J1
J2
J3
J4
J5
J6
P7
J8