yves Andres2 years ago000Do you still need to switch on a main switch? I have switched on my cooler and set it to level 4. cools, but notShow in original language (German)gerbere2 years ago • purchased this product000purchased this product Helpful answerOur radiator works perfectly, don't know if it has a main switch? maybe down by the thermostat?Show in original language (German)Comment1 commentrepeat2 years ago • purchased this product000purchased this productThere is no main switch. Cooler has been working perfectly for years. Very quiet appliance.Show in original language (German)Commentmbgalati2 years ago • purchased this product000purchased this productNoSet the cooling level on the underside of the thermostat. Mine cools at level 4.Show in original language (German)Comment1 comment