As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATED AFTER ENGINE START AND WOULD NOT RESET WITHOUT VERY HIGH CABIN TEMP. ACFT GROUNDED. PERFORMED TEMP CONTROLLER BITE TEST IAW AMM 21-61-00-700-806-002. FAULT TCV PRESENT AND WILL NOT RESET. VERIFIED RAM AIR DOOR FULL OPEN AND LIGHT ILLUMINATED. REPLACED TEMP CONTROL VALVE IAW AMM 21-51-10-000-801, AND 21-51-10-400-801. FAULT CLEARED AND GROUND VERIFICATION CHECK GOOD AND PACK LIGHT REMAINS OUT.