I have the Onan ECW30 and had a few issues initially with it loosing communication between the generator module and the hand controller. Installed early 2009, shortly after they announced the product. Onan confirmed thay had had some issue prmarily with Winnebagos they assumed due to more metal in the construction. Their solution was to move the generator module to the one place generator controls. Sine I relocated it there I have never had another issue. Never had any unintentional starts. It will start from battery voltage, low temperature and high temperature.
I use it much like John does to start and stop the generator for the pups when away form the motorhome in the summer.