Hello again, I am sorry you feel that way, I have not ask for any rating yet and have not given you any answer at all, we are at the trouble shooting and discovery phase of getting you fixed up.... I put no time limit on any of this, and always continue until a full resolution is reached.
(my normal service rate in this business is $148 per hour however, here on Just Answer I provide my services for a tenth of that, and generally save my customers hundreds and sometimes thousands of dollars on service costs.)
Let me know if you wish to continue or not,
The voltage to that thermostat by the way is 24volts, its harmless in virtually all cases.
So far I suspect a bad thermostat or bad printed circuit board inside the furnace, however some trouble shooting will be required (at no added charge) to determine that.
Let me know we can still go from here if you wish.