Gree U-Match 6 Series

GREE U-Match 6 SERIES UNIT SERVICE MANUAL
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3.4.3 “E2” Indoor Anti-freezing Protection
Error display:
IDU wired controller and IDU receiver light board will display E2.
Error judgment condition and method:
Check IDU evaporator pipe temperature. When evaporator pipe temperature is too low, freeze
protection will be activated to prevent freezing damage of evaporator.
Possible reason:
■IDU filter and evaporator are dirty;
■IDU motor is blocked;
■Refrigerant amount is insufficient;
■Ambient temperature of IDU and ODU is too low.
Troubleshooting: