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SDi Decades Extreme Service Manual www.ecoer.com
May. 2023Manufacturer reserves the right to change specifications or designs without notice.
Error code of engineer mode
Indoor unit EEPROM parameter error
Indoor / outdoor unit communication error
Communication malfunction between adapter board and outdoor main board
The indoor fan speed is operating outside of the normal range
Outdoor unit EEPROM parameter error
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
IGBT temperature sensor TH is in open circuit or has short circuited
Indoor room temperature sensor T1 is in open circuit or has short circuited
Evaporator coil temperature sensor T2 is in open circuit or has short circuited
Evaporator coil temperature sensor T2B is in open circuit or has short circuited
Evaporator coil temperature sensor T2A is in open circuit or has short circuited
The outdoor fan speed is operating outside of the normal range
Communication error between indoor two chips
Refrigerant leak detected
Water-level alarm malfunction
Mismatch between the new and old platforms
IPM malfunction or IGBT over-strong current protection
Over voltage or over low voltage protection
Top temperature protection of compressor or High temperature protection of IPM module
Inverter compressor drive error
Outdoor current protection
Outdoor low ambient temperature protection
Evaporator coil temperature over high protection
Evaporator coil temperature over low Protection
Condenser high temperature protection
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