Hokkaido HKEI-HCNI 263 G, Руководство по обслуживанию

Страница: 29 / 30

Service manual
10. Troubleshooting
10.1 Display board
ƒ Operation
The indicator flashes once every second after power is on and illuminates when the air conditioner is in
operation.
ƒ Timer indicator:
The indicator illuminates then TIMER is set ON.
ƒ 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.
ƒ Auto indicator:
This indicator flashes when the air conditioner is in AUTO operation.
ƒ ECON indicator
This indicator illuminates while the air conditioner is in economic operation.
10.2 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
26