Hi helios. What exactly is your question?

Hi did clean remove the hose on the pressure switchand lightly blew through tubing then connected one end to the pressure switch and lightly blew through it, disconnected it and connect it to the other port going into the furance and lightly blew into the tubing , reconnected the tubing back up and placed the wiring back onto the switch the mounted to the pressure switch, reconnected power to furance and the furance fired up with no blinking errors and is working fine, my question is that a sign that the pressure switch is going bad and should be replaced or just dirt or obstructions in the line. Please let me know your opinion replace or wait to see if it happens again, the furnace is 14 yrs old.