I have just purchased a Pop Top van with a Dometic Rm 2350 3 way fridge in it. I was advised that to start the function of the fridge I must first start it on gas then switch over to electric. I have followed the appropriate steps and 1/- was wondering how long it should take for the fridge to start cooling and 2/- how long should I wait to turn it over to 240 Volt? regards Kev