Precisely Rob that is why people like me, ask for help from the knowledgeable like you. Albeit advice based on the correct information given. So in this case as it looks increasingly likely it is an Exterior problem that is causing Receiver Errors i can only surmise the LNB is faulty as i had a look at F-Connectors and they are dry with no water damage or copper wire showing. Thing is if i go to the expense of buying an LNB and i still get said Errors it's back to square one...