Since I last talked to the tech on the phone Sunday evening the HVAC has been working as it should except for one time when I was sleeping and the breakers flipped but my son knew how to fix it.

No more stops like the way it was acting before the tech showed up Friday. At least it had been keeping the house warm then and it was only after the tech left that I lost heat altogether.

The high today was nine degrees F and the low of negative six so I have the thermostat set for 68 and it is keeping the house warm to 62. Good enough for now. I am too afraid to put the system on emergency heat because I know that the heat strips take a lot more electricity and I don't want breakers to start flipping again.

I still need my 'club' maintenance visit so I am making a list of Q for when they do that. Friday was supposed to be maintenance but since it was more involved the tech called it a diagnostic visit.

Thank you all for your support and advice.