WSTECH APS Series - APS Warning Code 5; APS Warning Code 6; APS Warning Codes 1, 2; APS Warning Codes 10, 11, 13, 14

Original Operating Instructions
APS Series – Outdoor Hybrid Inverter
Troubleshooting
APS-Series 120 Operating Instructions v320 EN
Page 136 of 213
7.2.1 APS Warning Codes 1, 2
Corrective action:
1. See Section 7.1.1.
7.2.2 APS Warning Code 5
Corrective action:
1. It is recommended to replace all AC surge arrester modules (-FA2) (Figure 21)
if the indication shows a red flag.
 Open doors in Section +C1.
 AC surge arrester is bottom-left on the mounting plate.
 Use surge arrester modules from the spare parts list (Table 30).
2. It is recommended to replace all AC surge arrester modules (-FA111)
(Figure 18), if the indication shows a red flag.
 Open doors in Section +C3.
 AC surge arrester is on the right mounting plate.
 Use surge arresters modules form the spare parts list (Table 30).
3. It is recommended to replace all AC surge arrester modules (-FA211)
(Figure 18), if the indication shows a red flag.
 Open doors in Section +C6.
 AC surge arrester is on the right mounting plate.
 Use surge arresters form the spare parts list (Table 30).
7.2.3 APS Warning Code 6
Corrective action:
1. It is recommended to replace all DC surge arrester modules (-FA110.1)
(Figure 20), if the indication shows a red flag.
 Open doors in Section +C2.
 DC surge arrester is between the plus copper rails.
 Use surge arresters modules form the spare parts list (Table 31 or Table
32).
2. It is recommended to replace all DC surge arrester modules (-FA210.1)
(Figure 20), if the indication shows a red flag.
 Open doors in Section +C5.
 DC surge arrester is between the plus copper rails.
 Use surge arresters modules form the spare parts list (Table 31 or
Table 32).
7.2.4 APS Warning Codes 10, 11, 13, 14
Corrective action:
1. Check if there is a short-circuit to ground in the PV field or battery field.