Arrived to hvac call to go over a previously diagnosed cracked heat exchanger. I checked the systems total static pressure in the cooling mode and found it to be at .9” W.C. while the system is rated .5” W.C. Recorded all data so we can give a quote not only on replacement of the system but to also fix air flow issues. I also found the heat exchanger to be cracked and red tagged the furnace. Scott will be out shortly to quote repairs and replacement.