Hi this is new to me I joined today got a problem with a vfd. Its a dinverter 2A 1 hp from control techniques a very expensive make not chinese. I had a price for them to give it a full service over £250 as a pensioner to expensive. The problem is it switches on works great silent, runs motor then turns off after a few minutes after 2 minutes can switch back on then same thing again. No smell no smoke any help please.