Forgive me for swearing in this post as I remember another funster doing just that about his EC328 last year and I thought "how boring is that". Well,,, went to switch mine off couple of hours ago and the illuminating switch wouldn't operate without making a hissing sound. Hmmm I thought, that's not good, it must be faulty, so I emailed Sargent requesting a new switch and was promptly told, take the whole unit out of the bus and send it to us and will fit you a new switch, and check the unit out at the same time and we will charge you £70 quid for the privalage. All I want is a bloody switch.!!!! Am off to Spain on the 3rd next month so taking it out, sending it to them, and having them fit a switch is out of the question. In my next pleading email to them, I explained my predicament, but still no go. "Its company policy they said, we do not supply internal parts for others to fit".!!!! What do you reckon is on the outside of the plastic switch casing,,, "the manufacturer and part number". "O BLISSSSSSSS". Wonderful thing, "The Internet".! And all for £3.07. Free nextday delivery. So I bought 3 just for luck and still have change for the odd Sangria. Cheers. Mike SunsetsUnlimited.