What’s the meaning of the index lights on the panel?
PacFIRST HEAT PUMP
english
The function of the LED on the panel is showing below:
Index Light
Name
Light
Flash
Temp Setting In the state of temp setting
-
Refrigeration Refrigerating
Ready to refrigerate, in the state of compressor start delay
protection
Heat Heating Ready to heat, in the state of compressor start delay protection
Defrost Defrosting Ready to defrost, in the state of compressor start delay protection
Fan Fan running -
Alarm - Alarm state
The meaning of the LED display
The LED usually shows temperature, if it shows “SHr”, it means the temperature sensor is short, and “OPE” means the tempera-
ture sensor is open. The temperature and the alarm code (Axx) will show alternately when in the alarm state.
The code is showing below:
Code
Signification
Explanation
A11 External alarm Alarm from external alarm signal, please refer to the internal parameter code “F50”
A21 Water temperature sensor error Open or short
(
showing “OPE” or “SHr”
)
A22 Outdoor machine sensor error Open or short
(
showing “OPE” or “SHr” when press the key “
↓
”
)
A99 Over probation time
If you have set the probation time F87, the alarm occurs when the accumulative running
time is over probation time, and the controller can not work.
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