What was found
ON DEPARTURE, CLIMBING THROUGH 10,000' CABIN ADVISORY HIGH RATE, THEN EXCESS CABIN ALTITUDE COMPLIED WITH ECAM & QRH. ACFT WOULD NOT PRESSURIZE. RETURNED TO A/P. PRESS PAGE SHOES MAN PRESS DOOR OPEN. TRIED REG 1 & 2, MANUAL PRESSURIZATION TO NO AVAIL. PERFORMED BITE TEST ON CPC 1 & 2, ALL TESTED GOOD. ALL CABIN PRESS CB'S & STILL COULD NOT ANY OF VVLS TO MOVE IN MANUAL. MORE TROUBLE SHOOTING REQUIRED. FOUND DEPRESSURIZATION VLV, 93HM, FROZEN. R & R DEPRESSURIZATION VLV, 93HM. CABIN PRESS CONTROL & TESTED OK. DEPRESS VLV, MAN MODE OPERATIONS CHECKED NORMAL IAW AB AMM 21-31-15-04-01.