What was found
30 MINUTES INTO FLIGHT, COCKPIT AND FWD CABIN TEMP WENT UP 7 DEGREES IN 10 MINUTES. UNABLE TO ADJUST UNTIL TRIM AIR WAS CYCLED AND CABIN TEMP SET TO MANUAL. FLIGHT DECK TEMP INOP IN AUTO, OK IN MANUAL. (<P>PERFORMED OPS CHECK IAW AMM 21-61-00, FOUND FLT DECK TEMP INDICATION TO NOT MATCH SELECTOR SETTING. FWD CABIN TEMP, OPS CHECK GOOD. PERFORMED FIM 21-62 FT 912 BITE PROCEDURE, NO CURRENT OR PREVIOUS FLIGHT FAULTS. SUSPECT FAULTY FLT DECK TEMP SELECTOR SWITCH. P/N 625868-1 ON ORDER WITH MCC. TRANSFERRED TO MDDR 110938 IAW DDG 21-61-02-03 CAT 'C'.</P><P>LP 1050494 - M4: REMOVED AND REPLACED FLT DECK TEMP ZONE SELECTOR IAW AMM 21-61-04. FLT DECK TEMP ZONE STILL INOP, FURTHER T/S REQUIRED. DMI 110938 REMAINS OPEN </P><P>LP 1050495-7 PERFORMED BITE TEST ON ZONE TEMP CONTROLLER IAW AMM 21-61-04. OPS CHECK OK. THIS CLEARS MDDR 110938 AND PLACARDS REMOVED.</P>)