Signs Your Solar Inverter Is Failing
What to look for, what to check yourself, and when to call someone out.
The pattern to watch
Generation down against the same month last year, error codes recurring, the unit dropping off monitoring, unexplained restarts, or noise you have not heard before.
What you can check safely
The display or app for error codes; whether monitoring is reporting at all; whether the AC and DC isolators are on. Nothing beyond that — do not open the unit and do not go on the roof.
What needs an engineer
Anything else. Diagnosis needs testing at the inverter and the strings, and it cannot be done from a photograph or a description.
Common questions
Is it always the inverter?
No. A failed isolator is a very common cause of a system that has simply stopped, and it is a much smaller job.
What does the quote cost?
Nothing, and there is no obligation. The installer provides a free design and written quotation.
Who actually does the work?
A trusted MCS-certified installer covering Belfast and the surrounding area. Solar Panels Belfast is a quote service, not the installer, so the work, the price, the certification and the warranties are all theirs.
How soon will someone be in touch?
We aim for within 24 hours of your enquiry.
Get your free Belfast solar quote
Tell us about your roof and we'll match you with a trusted MCS-certified installer covering Belfast and the surrounding area.