Every once in a while, even a proven performer, goes out "unusable". Sad, but true. But Please take heart, IF it is Varitube in Melbourne, He, is a VERY solid, and customer oriented person. He has given me GREAT breaks on price, fixed items that were likely MY problem, NOT his, and always responded to emails VERY promptly.
Please take heart, IF a varitube unit, I am certain he will handle it in his normal efficient manner. Good luck to you,
Yellow Hawk