Service manual
33
12. Troubleshooting
13.1 Display board
This indicator illuminates when the air conditioner is in AUTO operation.
AUTO indicator
DEFROST indicator (For Cooling & Heating models only)
This indicator illuminates when the air conditioner starts defrosting automatically or
when the warm air control feature is activated in heating oper ation.
1
22 3
4
5
1
22
3
4
Displays the temperature settings when the air conditioner is operational.
This indicator flashes after power is on and illuminates when the unit is in operation.
This indicator illuminates when TIMER is set ON/OFF
OPERATION in dicator
TIMER indicator
TEMPERATURE indicator
5
Signal receptor
13.2 Troubleshooting
For models adopting electrical function
Failure phenomenon
Operation
lamp
Timer
lamp
Defrosting
lamp
Auto
lamp
Over current protection of the compressor occurs 4
times
☆ ☆ ☆ ☆
Indoor room temp. sensor is open circuit or short
circuit
X
☆
X X
Temp. sensor on indoor evaporator is open circuit
or short circuit
☆
X X X
Temp. sensor on outdoor condenser is open circuit
or short circuit (without for cooling only models)
X X
☆
X
Outdoor unit protects(outdoor temp sensor, phase
order etc)
X X
☆ ☆
EEROM error X
☆
X
☆
Indoor unit communication err X X X
☆
r Extinguish ☆ Flash at 5Hz
NOTE: For cool only model, the defrosting lamp is replaced with fan lamp, but malfunction display remains.
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