As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO PRESSURIZE AIRCRAFT AFTER TAKEOFF. AIRCRAFT WAS OPERATING IN AUTO MODE, SWITCHED TO STANDBY AND CABIN STILL CONTINUED TO CLIMB 500 FPM. OUTFLOW VALVE INDICATOR SHOWED FULL CLOSED. NO DOOR WARNING LIGHTS ON. *S/D* REPLACED CABIN PRESSURE CONTROLLER AND CONTROL MODULE. AFTER REPLACEMENT OF BOTH UNITS, SYSTEM TESTED AND OPERATED NORMAL.