If you’re looking for help fixing your MrCool air conditioner, look no further! Our comprehensive MrCool air conditioner repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model’s error codes.

CODE: E0
PROBLEM: Indoor unit EEPROM parameter error

CODE: E1
PROBLEM: Indoor / outdoor units communication error

CODE: E2
PROBLEM: Zero-crossing signal detection error

CODE: E3
PROBLEM: Indoor fan speed has been out of control

CODE: E4
PROBLEM: Indoor room temperature sensor T1 open circuit or short circuit

CODE: E5
PROBLEM: Evaporator coil temperature sensor T2 open circuit or short circuit EC – Refrigerant leakage detection

CODE: F0
PROBLEM: Overload current protection

CODE: F1
PROBLEM: Outdoor ambient temperature sensor T4 open circuit or short circuit

CODE: F2
PROBLEM: Condenser coil temperature sensor T3 open circuit or short circuit

CODE: F3
PROBLEM: Compressor discharge temperature sensor TP open circuit or short circuit

CODE: F4
PROBLEM: Outdoor unit EEPROM parameter error

CODE: F5
PROBLEM: Outdoor fan speed has been out of control

CODE: P0
PROBLEM: IPM malfunction or IGBT over-strong current protection

CODE: P1
PROBLEM: Over voltage or over low voltage protection

CODE: P2
PROBLEM: High temperature protection of IPM module or compressor top

CODE: P3
PROBLEM: Outdoor ambient temperature too low

CODE: P4
PROBLEM: Inverter compressor drive error

CODE: P5
PROBLEM: Indoor units mode conflict (multi-zone ONLY)

CODE: P6
PROBLEM: Low pressure protection(Only for 36K)

mrcool air conditioner codes

What Our Clients Are Saying About Us