Fujitsu AB*A12, Service Manual

Page: 93 / 322

Description Operation
During a test operation, Operation LED and Timer LED
repeat flashing at the same time.
If a power is cut off during the operation by such as power
failure, Operation LED and Timer LED flashes alternately.
Operation LED is flashing
During the anti-freezing, Operation LED lights up (Low
Light).
Operation LED is lighting (Low light)
Operation LED is lighting
Timer LED is 3 sec ON, 1sec OFF
During the defrost and the oil recovery operation, only
Operation LED flashes.
Following conditions of Indoor unit are not defects.
During low pressure protection stop (when lower than
0.1MPa of low pressure is detected), LED1 lights up
continuously and LED6 repeats 3 times flashing.
During discharge temperature protection stop (when higher
than 120°C of discharge temperature is detected), LED1
lights up continuously and LED6 repeats 1 time flashing.
LED1 is lighting, and LED6 is flashing
During high pressure protection stop (when higher than
4.1MPa of high pressure is detected), LED1 lights up
continuously and LED6 repeats 2 times flashing.
During test operation, LED1 lights up continuously and
LED5 repeats 3 times flashing.
During oil balance operation, LED1 lights up continuously
and LED5 repeats 4 times flashing.
Description Operation
During pressure balance, LED1 and LED4 light up continuously. LED1 and LED4 are lighting
While stopping (idling), only LED1 lights up continuously. Only LED1 is lighting
When the pump down is completed, LED1 lights up
continuously and LED2,3,4,5,6 repeat 2 times flashing.
LED1 is lighting, and all other LEDs are
flashing
During defrost operation, LED1 lights up continuously and
LED5 repeats 2 times flashing.
During oil recovery, LED1 lights up continuously and LED5
repeats 1 time flashing.
LED1 is lighting, and LED5 is flashing
Following conditions of Outdoor unit are not defects.
06-03
At the heat pump type, indoor unit operation will be different
from outdoor unit operation mode.
The timer lamp indicate as above mentioned.
6-1-3 Operation Not Trouble