Aurora Power One inverters were introduced in 2013, so many of the initial installs are over 12 years old and worth replacing. However, if yours is only 7-8 years old, there is still a reasonable amount of life left in it, if you can start it!
Scroll down to “How to restart an ABB / Power One Aurora Solar Inverter:
https://www.inbalance-energy.co.uk/Inverter-Faults/abb-power-one-inverter-faults-repairs.html