My partner told me our M2002S was behaving in much the same way. Occassionally it would latch and hold but then stopped altogether.Had a look inside and could see the on/off switch was burnt out, plastic melted, contacts sooted up.No option but to source new switch. If you do a search you should have come across e-spares. The switch retails for £5.99 but they'll charge £4 for postage ! It's the switch with 6 tags, not 2.Servis went bust so I imagine spares will dry up.
Rob, July 2009
