19
Displays the malfunction code or protection code.
8.9.9 FAN SPEED indication lamp
Displays the selected fan speed: AUTO(nothing) and three fan speed levels: LOW, MED
and HIGH.
8.10 Outdoor unit LED display function:
1. When stand-by it display number of indoor unit online;
2. When operation it display frequency of outdoor unit;
3. When defrost it display “df”;
4. When a protection or error occurred, it displays error code or protection code.
8.11 Check function:
There is a check button on outdoor pcb. When push this button, the outdoor LED can
display in sequence:
Capacity demand→Running mode →revised capacity → fan state →No.1 evaporator pipe
temp. →No.2 evaporator pipe temp.→No.3 evaporator pipe temp.→No.4 evaporator pipe
temp.→outdoor pipe temp. → Outdoor temp. →discharge gas temp.→current of outdoor
unit → No. 1 opening degree of electronic expansion valve → No. 2 opening degree of
EXV → No. 3 opening degree of EXV→No. 4 opening degree of EXV→indoor unit
number→last protection/error code→capacity demand(cycle)
Explanation for the some display content:
1. Running mode:
Display Corresponding mode
0 Off
1 Cooling mode
2 Heating mode
2. Fan state:
Display Corresponding mode
0 Off
1 Low fan
2 High fan
3. Opening degree of EXV:
Opening degree equals the display data times 8;
4. Number of indoor unit
The indoor unit that can communicate with outdoor unit normally.
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