Справочник Пользователя для Hitachi RAC-25WSA RAC25WSA
Модели
RAC25WSA
14-33
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
OH thermistor temperature rise
OH thermistor detected compressor
overheat
①Leak of refrigerant.
②Compressor
③OH thermistor circuit.
②Compressor
③OH thermistor circuit.
6 Times
Thermistor abnormal
Abnormal thermistor value was
detected (Open or Short)
detected (Open or Short)
①Thermistor.
②Connection of thermistor defective.
③Thermistor circuit.
②Connection of thermistor defective.
③Thermistor circuit.
7 Times
Acceleration failure
Compressor acceleration was not
more that the minimum speed
setting.
setting.
①Leak of refrigerant.
②Compressor.
②Compressor.
8 Times
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)
.
14.8.3 COMMUNICATION ERROR DIAGNOSIS MULTIZONE RAM- 53NP3A / 68NP3A / 70NP4A / 130NP6A
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
Communication Error between
Indoor and Outdoor
Indoor and Outdoor
Communication
Error of Indoor 1
When Indoor unit
is not connected,
It blinks similarly.
Not Malfunction.
It blinks similarly.
Not Malfunction.
①Cable is wrongly connected
②Cable is open
③Interface Circuit between Indoor and Outdoor
②Cable is open
③Interface Circuit between Indoor and Outdoor
Unit
1 Time
Communication
Error of Indoor 2
2 Times
Communication
Error of Indoor 3
3 Times
Communication
Error of Indoor 4
4 Times
2sec
Lights for 0.25 sec at
interval of 0.25 sec
interval of 0.25 sec