As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP LIGHT ILLUMINATES UPON MASTER CAUTION RECALL. ACFT GROUNDED. ACCOMPLISHED PZT CONTROL BITE, FAULT CONTROL CABIN VALVE CLEARED. DUE TO HISTORY R & R SAME. OPS & LEAK CHECK GOOD. GROUND VERIFICATION SUCCESSFUL. REF AMM 21-61-00-700-806-002, 21-61-21-000-801, 21-61-21-400-801.