As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ZONE TEMP LIGHT (CONT CAB) ILLUMINATES ON "RECALL" GOES OUT WHEN MASTER CAUTION IS RESET. BOTH ZONE TEMP CONTROLLERS FAIL "FLT DECK TEMP SENSOR" PERFORMED CLEANING OF CABIN (FLT DECK) SENSOR FILTER ASSEMBLY PER AMM REF 21 61 06 100 801. ZONE TEMP LIGHT NO LONGER ILLUMINATES ON RECALL.