Service manual
39
13. Troubleshooting
13.1.
For all cooling only model
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
☆
☆
Extinguish
☆
Flash at 5Hz
13.2.
For all heat pump model
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
Extinguish
☆
Flash at 5Hz
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