Hitachi RAK-35PSA RAK35PSA User Manual
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Product codes
RAK35PSA
14-37
Communication error
Communication between indoor and
outdoor is interrupted
①C-D cable wrongly connected
②Open connection on the C-D cable.
③Interface circuit of indoor/outdoor unit.
②Open connection on the C-D cable.
③Interface circuit of indoor/outdoor unit.
9 Times
Abnormal power voltage
Abnormal power source is detected.
①Abnormal power source
②Cable is wrongly connected
③Main P.W.B.
②Cable is wrongly connected
③Main P.W.B.
10 Times
Fan lock error
Outdoor fan actual rpm could not
reach as per instructed.
①Outdoor fan motor
②Fan motor circuit.
②Fan motor circuit.
12 Times
EEPROM read error
Microcomputer cannot read the data
in EEPROM.
①Main P.W.B.
13 Times
ACTIVE CONVERTER
defective
defective
Over Voltage is detected by System
Power Module
①System Power Module.
14 Times
Example of blinking (5 times)
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 time
Abnormal Thermistor
1 Time
Overheat Thermistor
2 Times
Defrost Thermistor
3 Times
Outdoor Temperature Thermistor
Communication error
Communication between indoor and
outdoor is interrupted
①C-D cable wrongly connected
②Open connection on the C-D cable.
③Interface circuit of indoor/outdoor unit.
②Open connection on the C-D cable.
③Interface circuit of indoor/outdoor unit.
1 Time