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SDi Decades Extreme Service Manual www.ecoer.com
May. 2023Manufacturer reserves the right to change specifications or designs without notice.
Malfunction or Protection
Outdoor EEPROM malfunction
Indoor / outdoor units communication error
Communication malfunction between adapter board and outdoor main board
Top temperature protection of compressor or High temperature protection of IPM module
Temperature protection of compressor discharge
Outdoor overcurrent protection
High temperature protection of condenser
Outdoor unit low AC voltage protection
Outdoor unit main control board DC bus high voltage protection
Outdoor unit main control board DC bus high voltage protection /341 MCE error
Communication malfunction between IPM board and outdoor main board
Outdoor compressor current sampling circuit failure
Outdoor compressor lack phase protection
Outdoor unit zero speed protection
Outdoor unit IR chip drive failure
Compressor speed has been out of control
Compressor overcurrent failure
Condenser coil temperature sensor T3 is in open circuit or has short circuited
Outdoor room temperature sensor T4 is in open circuit or has short circuited
Compressor discharge temperature sensor TP is in open circuit or has short circuited
Refrigerant pipe temperature sensor error
High pressure sensor is in open circuit or has short circuited
Over current failure of outdoor DC fan motor
Lack phase failure of outdoor DC fan motor
Zero-speed failure of outdoor DC fan motor
Outdoor fan speed has been out of control
Low ambient temperature protection
High temperature protection of IPM module
Outdoor IPM module temperature sensor fault
High temperature protection of evaporator
Low temperature protection of evaporator
8.2.3 Error Display (Outdoor Unit)