Anyone know why my master caution is giving me an AIR COND and CABIN ALTITUDE warning every single flight only while cruising after about 30 minutes? It goes away at when I descend below 19000 feet and I am not getting any illuminating lights showing anything is wrong and everything from what I know is set up right, packs, Isolation valve, APU Bleed, and gen. I even turned the temperature knobs to cold, pressed trip reset and it didn't work. Its making the LevelUp really a pain to fly. Below is a screenshot of my overhead panel when getting the master caution
LevelUp 737 AIR COND warning for no reason
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Anyone know why my master caution is giving me an AIR COND and CABIN ALTITUDE warning every single flight only while cruising after about 30 minutes? It goes away at when I descend below 19000 feet and I am not getting any illuminating lights showing anything is wrong and everything from what I know is set up right, packs, Isolation valve, APU Bleed, and gen. I even turned the temperature knobs to cold, pressed trip reset and it didn't work. Its making the LevelUp really a pain to fly. Below is a screenshot of my overhead panel when getting the master caution