I have a Phoenix 24/800 here that stopped working. Over the last 8 months it powered a freezer (80 W, startup 700W) on the ECO setting. I don't know how old it is, but do know it wasn't used much. I thought it must be a fuse, but it appears there's no fuse in the apparatus. These days it's difficult to find a technician for those kind of jobs. Is it worth looking into repair?