Service manual
- 41 -
11.2 Troubleshooting
For 9K and 12K :
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
☆
Indoor unit communication error
☆
☆
illumine simultaneous
Outdoor condenser temperature sensor is open circuit or short circuit
☆
☆
illumine alternately
r
Extinguish
☆
Flash at 5Hz
For 18K:
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 error
X
X
X
☆
