WSTECH APS Series - APU Error Code 62; APU Error Codes 1-4, 44, 89, 100; APU Error Codes 16-36, 96-99, 102-105, 108-110; APU Error Codes 5-11, 40, 48-52, 79, 84-88, 107

Original Operating Instructions
APS Series – Outdoor Hybrid Inverter
Troubleshooting
APS-Series 120 Operating Instructions v320 EN
Page 140 of 213
7.3.1 APU Error Codes 1-4, 44, 89, 100
Corrective action:
1. Check the fluid level (Section 7.1.1).
2. Start the fan manually via VNC access (Function and Interface Description).
3. Check if the fan is ON.
4. Start the water pump manually via VNC access (Function and Interface
Description).
5. Check if the water pump is ON.
7.3.2 APU Error Codes 5-11, 40, 48-52, 79, 84-88, 107
Corrective action:
1. Measure the DC-open-circuit voltage (Figure 20).
2. Measure the DC current (Figure 20).
3. Check if the values are within the limits.
 See technical data (Section 12.2).
7.3.3 APU Error Codes 16-36, 96-99, 102-105, 108-110
Corrective action:
1. Measure the grid voltage.
 See technical data (Section 12.2).
2. Measure the grid frequency.
 See technical data (Section 12.2).
3. Check the rotating field.
7.3.4 APU Error Codes 46, 47, 53, 54, 56-59, 92, 93
Corrective action:
1. Please contact customer service (Section 11).
7.3.5 APU Error Codes 60, 61
Corrective action:
1. Please contact customer service (Section 11).
7.3.6 APU Error Code 62
Corrective action:
1. See Section 7.1.2.
7.3.7 APU Error Codes 63-65, 95, 106
Corrective action:
1. Please contact customer service (Section 11).