
Maintenance and Troubleshooting
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Recommended tools:
•Insulated screwdriver
•Wire nut for PV NEGATIVE
•7 mm socket and small ratchet, or 7 mm open wrench.
WARNING: Shock hazard
The inverter should only be removed from the wiring box when a replacement inverter is immediately available. When replacing an inverter, ensure the AC/DC Disconnect switch is locked (or otherwise secured) in the OFF position. Do not leave the top of the wiring box exposed for extended periods of time.
WARNING: Shock hazard
Before replacing the inverter, turn OFF the breaker switches in the main utility service panel and the AC/DC Disconnect switch on the GT Inverter.
To remove the inverter from the wiring box:
1.Turn OFF the breaker switches in the main utility service panel and the AC/DC Disconnect switch on the GT Inverter. If possible, cover the PV arrays with an opaque material.
2.Remove the covers from the wiring box and inverter front (described on page
3.Using an insulated screwdriver, disconnect the PV NEGATIVE
4.Disconnect the remaining AC, DC and communications wires between the inverter and the wiring box, inside the inverter. Cap all disconnected AC and DC wires with wire nuts.
5.Inside the inverter, remove the four nuts attaching the wiring box to the inverter.
6.Lift the inverter off the mounting bracket, leaving the wiring box in place.