Table of Contents
1 Information on this Document ................................................. 4
2 Safety......................................................................................... 6
2.1 Skills of Qualified Persons .................................................................. 6
2.2 Safety Precautions............................................................................... 6
2.3 Disconnecting the Inverter from Voltage Sources ............................. 8
3 Cleaning the Inverter................................................................ 11
4 Troubleshooting ........................................................................ 12
4.1 LED Signals.......................................................................................... 12
4.2 Event Messages................................................................................... 12
4.3 Error Messages ................................................................................... 13
5 Checking the PV System for Ground Faults............................ 26
6 Checking the Function of the Varistors.................................... 29
7 Replacing the Varistors ............................................................ 31
8 Testing the Function of the Battery Pack ................................. 32
9 Recommissioning the Inverter.................................................. 33
10 Decommissioning the Inverter ................................................. 35
11 Spare Parts................................................................................ 38
12 Contact....................................................................................... 39
Table of Contents
SMA Solar Technology AG
Service Manual 3SB36-50SE-SG-en-10