Carrier Elite air conditioner Fault Codes

Carrier Elite air conditioner Fault Codes 055N, 065N and 075N

Indoor Unit Error Display

Carrier Elite air conditioner Fault Codes 42LUVH055N/42LUVH065N

DisplayLED STATUS
E0 EEPROM parameter error
E1Indoor / outdoor units communication protection
E2 Zero-crossing signal error
E3 Fan speed out of control
E5 Open or short circuit of outdoor temperature sensor
E6 Open or short circuit of room or evaporator temperature sensor
E7 Outdoor unit fan protection
P0 Module protection
P1 Over voltage or too low voltage protection
P2 Temperature protection of compressor top.
P4 Inverter compressor drive error

Note: E4 & P3:  Reserved function

Carrier Elite air conditioner Fault Codes 42LUVH075N

Failure phenomenon Defrosting
lamp
Timer
lamp
Auto
lamp
Operation
Lamp
EEPROM parameter error On On On On
Indoor / outdoor units communication protection ****
Zero-crossing signal error On On **
Fan speed out of control OnOn**
Open or short circuit of outdoor temperature sensor XOnX*
Open or short circuit of room or evaporator temperature sensor OnOnOn*
Outdoor unit fan protection OnOn**
Module protection XXOn*
Over voltage or too low voltage protection XOnOn*
Temperature protection of compressor topOnXX*
Outdoor temperature low protection OnXOn*
Inverter compressor drive error OnX**

Note: X – Extinguish    * – Flash at 5Hz