Troubleshooting; Error Code List - Carrier 40VM Series Service Manual

TROUBLESHOOTING

Error Code List

CAUTION
Turn off power before connecting or disconnecting connector.
Table 29 —Error Code List for Indoor Unit
ERROR CODE
FE No address when powered on for the first time
dd
E1 Communication error between indoor unit and outdoor unit
E2
E3
E4 Check evaporator outlet temperature sensor (T2B)
E5 Check evaporator temperature sensor (T2A)
E6
E7
E9 Communication error between indoor unit and wired controller
Eb
Ed
EE
Table 30 —Error Code List for Remote Controller
ERROR CODE
-
E9 Communication error between controller and indoor unit
F7
FP Too many indoor units in group control (maximum 16)
DEFINITION
Heating/Cooling mode conflict error
Check indoor temperature sensor (T1)
Check room temperature sensor (TA)
DC fan error
EEPROM error
Expansion valve error
Outdoor unit error
Condensate overflow
DEFINITION
No display on the wired controller
EEPROM error on wired controller
38