Gree GWH09TB-D3DNA1A Service Manual page 53

If malfunction occurs,corresponding code will display and the unit will resume normal until protection or
malfunction disappears.
Yellow indicator blinks for once
Yellow indicator blinks for twice
Yellow indicator blinks for 3 times
Yellow indicator blinks for 8 times
Indicator display
of outdoor unit
Green indicator does not blink
Yellow indicator blinks for 4 times
Yellow indicator blinks for 5 times
Yellow indicator blinks for 6 times
Yellow indicator blinks for 7 times
Red indicator blinks for once
Red indicator blinks for twice
Red indicator blinksfor 3 times
Red indicator blinks for 4 times
Red indicator blinks for 5 times
Red indicator for 6 times
Red indicator blinks for 7 times
Red indicator blinks for 8 times
Compressor stars (normal)
Defrosting (normal display of indoor unit)
Anti-freezing protection (normal
display of indoor unit)
IPM protection
Overcurrent protection
Overload protection
Exhaust protection
Overlod protection of compresoor
Cooling (dehumidify) or heating current
dropped frequency current.
Exhaust temp. dropped frequency temp.
Tube temp. dropped frequency temp.
T dropped frequency temp.
tube-in
Outdoor condenser temp. sensor mal.
Outdoor ambient temp. sensor mal.
Outdoor exhaust temp. sensor mal.
Starting at temp. does not reach
Communication is abnormal