Weber grill. The grill lights with an automatic striker, but it takes an inordinate amount of time

Question

The grill lights with an automatic striker, but it takes an inordinate amount of time to get hot and it tops out at 350 degrees. It is useless for grilling.

It was a rather expensive model that we got at a yard sale that looked as though it had never been used. Should we scrap it or can we save it?

Thank you.