your manufacturer warranties should cover the main issues with your system – check and see if your inverter is still covered and how many years you have left it might be prudent to look at buying an extended warranty on your inverter. panels should be covered for 20 years. manufactures have contract relationships with installers. if there is an issue they most likely will send out someone in your area. if there is an error code on the inverter post it. and maybe we can get an answser.