Do solar panels need maintenance?
1 min read · Updated 15 October 2026
The short answer
Very little, but not none. The panels mostly look after themselves; the inverter, connections and isolators are where problems start.
Watch your generation
Compare this month's output with the same month last year. A sustained drop usually means a fault, not the weather.
Check the inverter
Look at its display or app every so often. A warning light or a missing reading is worth investigating.
A periodic inspection
An electrical check of connections, isolators and cabling catches the loose or corroded connector before it becomes a fault.
On cover: Solar panel insurance: what does it cover, and do you need it?
Want someone else to look after it?
Annual service, monitoring and repairs, any make.