Lot code on the LNB is 0505. Any way to test the LNB?

I've only got one receiver, I don't have any spares lying around so I can't check another receiver. Where do I find the lot number?

My dish must have melted in the noon day sun We've had Dish for about a year now without any major problems. We live in a moblie home with a metal roof, when the dish was installed the installers bolted the dish to a large cement base, well as soon as the wind started blowing that dish fell...