Hi Selina - do you have a consultant? If you do, please call him/her. If your consultant has dropped out of sight, then please call the HO in Perth.
As Amy said, give the prongs on the bottom of the jug a good going over to make sure they're dry. Is the varoma setting correctly so no moisture is escaping onto the body of the TMX? (jsut a thought)
I don't think Amy means to pull the whole machine apart . .!!
. . but to just disassemble it as much as possible, make sure the base(s) are dry as well as the prongs . .
Good luck - and let's know how everything is going .