Secure Power Ltd
User Manual
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27
Appendix 4 Fault codes
Fault
Fault code
Bus Fault
00 – 19
Inverter Fault
20 – 39
Over Heat
40 – 44
Output short circuit
45 – 49
Overload
50 – 54
Output Relay Fault
55 – 59
Input NTC Fault
60 – 64
Auxiliary Power Fault
65 – 69
Input Fuse Fault
70 – 74
Others
99
