Hitachi RAK-35NH5 - 4. All systems stop from several seconds to several minutes after operation is started (all indicators are also off)

6Times
2 sec
7Times
2 sec
9Times
2 sec
10 Times
2 sec
13 Times
2 sec
4Times
2 sec
Once
2 sec
2Times
2 sec
3Times
2 sec
6Times
2 sec
7Times
2 sec
9Times
2 sec
10 Times
2 sec
13 Times
2 sec
Once
2 sec
2Times
2 sec
3Times
2 sec
Abnormal water level
detection
Indoor thermistor
abnormal
During drain pump test
drive
)
(
Lamp blinking mode
Over current in DC fan
moter
IC401 defective
Indoor / outdoor interface
defective
Forced operation of
outdoor unit
Reversing valve
defective
Main defective
Abnormal water level
detection
Indoor thermistor
abnormal
During drain pump test
drive
Lamp blinking mode
     
MODEL RAD-25NH5, RAD-35NH5, RAI-25NH5, RAI-35NH5, RAI-50NH5
Perform troubleshooting according to the number of times the timer lamp on the display of the indoor unit blinks.
< Cautions >
(1) If the interface circuit is faulty when power is supplied, self-diagnosis will not be displayed.
(2) If the indoor unit does not operate at all, check to see if the connecting cord is reversely connected or disconnected.
Over current in DC fan
moter
IC401 defective
Indoor / outdoor interface
defective
Forced operation of
outdoor unit
Reversing valve
defective
Main defective
Outdoor electric assembly
defective
Lights for 0.35 sec at
interval of 0.35 sec.
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