Purchased a VF Vaporflask Lite yesterday. Using a Kangertech Aero tank with coil of 1.2 resistance. Very impressed with Lite very easy to use with good instruction manual. Today I forgot to lock controls and unwittingly increased voltage to 60. Yikes I got a fright as it went pop. No damage done apart from changing the coil. The one i was using is ok apart from producing a burnt taste now, can you wash coils out? I have switched to a new coil and all is ok.