General Climate CU-S05CR - 12. Troubleshooting Guide; 12.1 Display Board Indicators; 12.2 General Troubleshooting

www.generalclimate.com 34 Wall-Mounted Split Type
12. Troubleshooting
12.1 Display board
§ Operation
The indicator flashes once every second after power is on and illuminates when the air conditioner is in operation.
§ Timer indicator:
The indicator illuminates then TIMER is set ON.
§ PRE-DEF. indicator (For cooling & heating mode only)
The air conditioner starts defrosting automatically if outdoor unit frosts in heating operating.
At this time, PRE-DEF. indicator illuminates.
§ Auto indicator:
This indicator flashes when the air conditioner is in AUTO operation.
§ ECON indicator
This indicator illuminates while the air conditioner is in economic operation.
12.2 Troubleshooting
For cooling mode:
Failure phenomenon
Operation
lamp
Timer
lamp
Indoor fan speed has been out of control for over 1 minute
☆
X
Indoor room temp. or evaporator sensor is open circuit or short circuit
☆
On
Over current protection of the compressor occurs 4 times
X
☆
EEROM error
On
☆
No over-zero signal
☆
☆
r
Extinguish
☆
Flash at 5Hz
For heat pump mode:
Failure phenomenon
Operation
lamp
Timer
lamp
Defrosting
lamp
Over current protection of the compressor occurs 4 times
☆
X
☆
Indoor fan speed has been out of control for over 1 minute
X
☆
☆
No over-zero signal
☆
☆
☆
Temp. sensor on indoor evaporator is open circuit or short circuit
X
X
☆
Indoor room temp. sensor is open circuit or short circuit
X
☆
X
EEROM error
On
☆
X
r
Extinguish
☆
Flash at 5Hz