Daikin ARXN25MV1B, Service Manual

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Service Diagnosis
25
When there is no error, compressor running frequency is displayed.
When there is error, it fl ashes the error code as below:
Normal operation Flashing Error Code
In addition, 7 segment also can be use to retrieve unit operating condition such as running current, DC
voltage, ambient temperature, indoor air temperature, etc.
By pressing the tact switch, the 7 segment will start to fl ash from “ ”. Press again, it will show “ ” and
subsequent running number shows the parameter number.
Then, the 7 segment will fl ash again showing the parameter measurement.
When the 7 segment display is left untouched for 5 min, the display will light off (Dim).
Parameter
Number
Parameter Description Unit/Range
00 Compressor Actual Rotation r/s
01 Compressor Target Rotation r/s
02 DC Bus Voltage VDC
03 Total Current (x10) A
04 Outdoor Air Temperature °C
05 Outdoor Heat Exchanger Temperature °C
06 Compressor Discharge Temperature °C
07 Outdoor Heatsink Temperature °C
08 Indoor Air Temperature °C
09 Indoor Heat Exchanger Temperature °C
10 Electronic Expansion Valve Opening Pulse
41 Target Discharge Temperature °C