What was found
YKM - DIVERSION - EN ROUTE FROM PHX TO SEA LT ENGINE ANTI-ICE VALVE CLOSED, ECAM WARNING OCCURRED AFTER SELECTION OF ANTI-ICE TO ON. TRIED VARIOUS POWER SETTINGS UP TO FULL CLIMB POWER TO OPEN THE ANTI-ICE VALVE, ATTEMPTS WERE UNSUCCESSFUL, DUE TO ICING CONDITIONS DIVERTED TO YKM. THE ANTI-ICE VALVE WAS REPLACED IAW AMM 30-21-51-401, OPERATIONAL CHECK WAS GOOD AND MEL 30-21-01, COND NR 2 WAS CLEARED.