For 36K-48K Outdoor Unit
Communication malfunction between indoor and outdoor units
Current overload protection
Outdoor ambient temperature sensor (T4 ) malfunction
Condenser coil temperature sensor (T3) malfunction
Compressor discharge temperature sensor (T5) malfunction
Outdoor unit EEPROM parameter error
Outdoor fan speed malfunction
Inverter module (IPM) malfunction
Over-voltage or under-voltage protection
Compressor top high temperature protection (OLP)
Low ambient temperature cut off in heating
Compressor drive malfunction
High temperature protection of indoor coil in heating
Outdoor temperature protection of outdoor coil in cooling
Temperature protection of compressor discharge
Communication malfunction between control board and IPM board
Outdoor IPM module temperature sensor malfunction
Outdoor check function
Display running frequency, running state or malfunction
code
Indoor unit capacity demand code
Actual data*HP*10
If capacity demand code is higher than 99, the digital display
tube will show single digit and tens digit. (For example, the
digital display tube show “5.0”,it means the capacity demand
is 15. the digital display tube show “60”,it means the
capacity demand is 6.0)
Amendatory capacity demand code
The frequency after the capacity requirement
transfer
The frequency after the frequency limit
The frequency of sending to 341 chip
Indoor unit evaporator outlet temp.(heating T2，
cooling T2B)
If the temp. is lower than 0 degree, the digital display tube
will show “0”.If the temp. is higher than 70 degree, the digital
display tube will show “70”.
If the temp. is lower than -9 degree, the digital display tube
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