Hitachi RAF-25FX8 Service Manual page 146

TROUBLE SHOOTING WHEN THE TIMER LAMP BLINKS
MODEL RAF-25FX8, RAF-35FX8
When the timer lamp on the display section of the indoor unit blinks, refer to the following table.
Lamp blinking mode
2 sec.
2 sec.
2 sec.
2 sec.
2 sec.
2 sec.
※1
2 sec.
Lights for 0.35 sec. at
(
interval of 0.35 sec.
〈Cautions〉
(1) If the interface circuit is faulty when power is supplied, the self-diagnosis display will not be displayed.
(2) If the indoor unit does not operate at all, check if the connecting cable is connected to the outdoor unit.
(3) To check operation again when the timer is blinking, you can use the remote control for operation
(except for mode marked ※1).
Once Reversing valve defective
2 Times Forced operation of outdoor unit
3 Times Indoor/Outdoor interface defective
4 Times Outdoor defective indication
9 Times Indoor sensor defective
Abnormal rotating numbers
10 Times
of DC fan motor (Upper)
13 Times IC401 defective
)
Main defective
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