When a solar plant stops producing, the inverter is the first suspect. A solar inverter service routine catches dust, heat and loose connections before they become a shutdown, and a good record makes warranty claims quick. Always follow the inverter maker's manual and safety rules.
Solar inverter service checklist
- Display and status: running, standby, fault
- Event log and error codes since the last visit
- Generation today and this month against expected output
- AC and DC connections: tight, no burning or discoloration (with isolation as per the manual)
- Earthing and surge protection
- Cooling fans, vents, dust; room or enclosure ventilation
- Monitoring and communication connection
- Firmware version, if the maker publishes updates
Common faults and first checks
- Grid fault: check grid voltage and frequency; record and inform the customer if it is the grid
- Earth or insulation fault: often moisture or damaged DC cable; isolate and inspect as per the manual
- Overheating or derating: blocked vents, failed fan, direct sun on the unit
- No monitoring data: Wi-Fi, data logger or SIM issue
Warranty claims
Send the maker the serial number, error code, photos of the display and installation, and the visit record. Track the claim to closure and tell the customer the status.
Inverters as assets
In ServicePilot each inverter is an asset on the customer's site with its serial number, the O&M contract creates preventive visits, and every visit and fault stays on its history. Use it with the solar plant maintenance checklist and the solar AMC contract format.
