Solar panels are built to run for decades with very little intervention, but a small amount of regular attention keeps your system generating at full capacity instead of slowly losing efficiency without you noticing.
What actually needs maintenance
Panels themselves have no moving parts and rarely fail outright, but performance can quietly drop from a few common causes:
- Dust, pollen, and bird droppings reducing how much light reaches the cells
- Overhanging branches casting partial shade for part of the day
- Loose or corroded connections at the inverter or isolator over time
- Inverter fault codes going unnoticed because no one’s checking the app
How often should panels be cleaned?
Most Melbourne homes only need panels cleaned once every 12 to 24 months, since rain does most of the work on a typical tilt. Homes near busy roads, under trees, or in dustier outer suburbs may benefit from checking annually rather than assuming rain is enough.
Quick Tip
A sudden, sharp drop in generation, a red or flashing light on the inverter, or an error message in the monitoring app are all worth getting checked rather than waiting out.
Check your inverter, not just your panels
The inverter is the part most likely to need attention before the panels do. If your system needs reconnecting to WiFi, our WiFi Connection Guide walks through it.
Serving systems across Melbourne’s North
We inspect and maintain systems across Melbourne’s North, including Epping, Craigieburn, and Wollert.
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