Hitachi RAK-35PXA RAK35PXA User Manual
Product codes
RAK35PXA
14-32
14.8.2 MULTIZONE
SELF-DIAGNOSIS LIGHTING MODE
: LIGHT
: BLINK
: OFF
L
D
3
0
1
0
1
L
D
3
0
2
0
2
L
D
3
0
3
0
3
L
D
3
0
4
0
4
SELF DIAGNOSIS NAME
DETAIL
MAIN CHECK POINT
RED RED RED GRN
1. DURING OPERATION
Normal Operation
Compressor Operation
Not Malfunction
Overload (1)
The rotation speed is automatically controlled to
protect the compressor in the overload
condition.
This shows an overload but not malfunction.
protect the compressor in the overload
condition.
This shows an overload but not malfunction.
Overload (2)
Overload (3)
Example of blinking (5 times)
2. DURING STOP
Abnormal Thermistor
Thermistor is opened or shorted.
Refer to the table below
①Thermistor ②Connection of Thermistor
is faulty ③Thermistor Circuit
Lit
1~11
Times
Blinking times
Reference Table for Abnormal Thermistor
1 Times
Overheat Thermsitor
8 Times
Narrow Pipe Thermistor (Indoor 3)
2 Times
Defrost Thermistor
9 Times
Wide Pipe Thermistor (Indoor 3)
3 Times
Outdoor Temperature Thermistor
10 Times
Narrow Pipe Thermistor (Indoor 4)
4 Times
Narrow Pipe Thermistor (Indoor 1)
11 Times
Wide Pipe Thermistor (Indoor 4)
5 Times
Wide Pipe Thermistor (Indoor 1)
12 Times
Narrow Pipe Thermistor (Indoor 5)
6 Times
Narrow Pipe Thermistor (Indoor 2)
13 Times
Wide Pipe Thermistor (Indoor 5)
7 Times
Wide Pipe Thermistor (Indoor 2)
L
D
3
0
1
0
1
L
D
3
0
2
0
2
L
D
3
0
3
0
3
L
D
3
0
4
0
4
SELF DIAGNOSIS NAME
DETAIL
MAIN CHECK POINT
RED RED RED GRN
Normal Stop
Indoor Thermostat OFF.
Main Operation OFF
Not Malfunction
Reset STOP
When stop with Power RESET
(Normal when power has been
Switched ON)
①P.W.B. (Power Circuit, HIC, ETC)
1 Time
Peak Current Cut
Over Current is Detected
①Compressor ②P.W.B.
①System Power Module ②P.W.B.
2 Times
Abnormal Low Speed
Rotation
Position Detection Signal is not
input during operation
①System Power Module ②Compressor ③
P.W.B
3 Times
Switching Failure
Fail to Switch from Initial Low
Frequency Sync to Position
Detection Signal
①System Power Module ②Compressor ③
P.W.B
4 Times
Overload Lower Limit Cut
Overload protection mechanism is
requesting compressor to run at a
speed lower than the minimum
speed limit
speed lower than the minimum
speed limit
①Outdoor unit is exposed to direct sunlight or
its airflow is blocked.
②Fan motor ③Main PWB
④The Voltage is extremely LOW
④The Voltage is extremely LOW
5 Times
2SEC
Lights for 0.25 sec at
interval of 0.25 sec
interval of 0.25 sec
TIME
(1)
(2)
(3)
SET
VALUE
VALUE
RO
T
AT
IO
N
SPEED