As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L PACK LIGHT ON RECALL, EXT ON RESET. GROUNDED - YES. PERFORMED BITE CHECK ON TEMP CONTROLLER FOUND RAM AIR ACTUATOR FAULT. CLEARED FAULT, PERFORMED BITE CHECK SEVERAL MORE TIMES, FAULT IS NO LONGER PRESENT REF B737-800 AMM 21-51-00-700-803.