Thanks. Another factor I keep thinking about is the thermostat. I replaced the thermostat just before this issue came up, maybe something is going on with it or perhaps I bumped or dislodged something while replacing it. I do know that since this has been going on, it has started properly each and every time I cycle the on off switch, so that’s why I find it difficulty to believe its a sticking vacuum switch, but I’ll try tapping it the next time. To properly use the ohm meter on it, I’ll have to remove the power, so it will open anyway, so how can I test it with an ohm meter, when voltage is applied to it?