Hitachi UTOPIA RAS-4HVRP2E Service Manual page 301

10 Troubleshooting
Troubleshooting in check mode
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Cause of inverter stoppage (
Code
Automatic Stoppage of Transistor Module
(DIP-IPM Error)
1
(Overcurrent, Undercurrent, Temperature increase)
Instantaneous Over Current
2
Abnormal Inverter Fin Thermistor
3
Electronic Thermal Activation (Inverter overcurrent)
4
Inverter Voltage Decrease (Undervoltage)
5
Over Voltage
6
Abnormal Inverter Transmission
7
Abnormal Current Detection
8
Instantaneous Power Failure Detection
9
Reset of Micro-Computer for Inverter
11
Earth Fault Detection from Compressor (Only Starting)
12
Phase detection abnormality
13
Inverter Non-Operation
14
Inverter Non-Operation
15
Inverter Non-Operation
16
Communication Abnormality
17
Protection Device Activation (PSH)
18
Protection Detection Device Abnormality
19
Early Return Protection Device
20
Loss of synchronism
21
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Table of capacity codes of indoor unit
Code Equivalent horsepower
0.8
06
1.0
08
1.3
10
1.5
11
1.8
13
299 SMGB0136 rev.0 - 07/2021
i
)
Cause
Code Equivalent horsepower
2.0
14
2.3
16
2.5
18
3.0
22
4.0
32
Cause of stoppage
for corresponding
Indication
unit
during retry
17 P7
17 P7
17 P7
17 P7
18 P8
18 P8
18 -
17 P7
18 -
18 -
17 P7
18 P8
18 -
18 -
18 p8
18 p8
- -
- -
18 P7
17 -
Code Equivalent horsepower
40
48
Remark
Alarm Code
53
48
54
48
06
06
04
51
-
-
53
-
55
55
55
55
02
38
53
31
5.0
6.0
10