Hisense Hi-Dom Installation, Configuration And Maintenance Manual page 4

1.2.1 Description of LED indicators
POWER Power display LED (red)
H-NET Air-condition side communication
display LED (yellow)
RUN working status display (green)
485TX RS485 signal output(yellow)
485RX RS485 signal output(yellow)
STAT status indicator (green)
RESET reset button
Figure 1.2 LED indicators
it is on when the unit is power-on
flashing when a signal is transmitted
from H-NET system
it is on when initialization and flashing
during normal operation
flashing when this unit has signal
transmitted from RS485 interface
flashing when there is signal transmitted
from RS485 interface to the unit
it is on when completing factory reset
/without H-NET access