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Do this. Turn power off to furnace and back on.This will reset board.Then call for heat and let me know how far in sequence it goes and if we get an error code at that point.
Inducer vent motor comes on
Pressure switch closes
Main circulating blower comes on
If furnaces fails anywhere in the sequence we should get an error code by blinking lights on the control board. Turn power off and back on, then call for heat.tell me how far in that sequence it goes and what error code is on first failure We will go from here.