Hello Azucena,
It is a bit strange the number you're mentioned are the numbers on the printed board, when I looked it up in the parts book it must be the part number 25200-03460 (CU50-73) now this number has been changed to 24200-52001 (CU51-46). Can you give me the part number of that EPS controller you have send to your costumer maybe we can start from there? Maybe your costumer has the old one and you have send him the new one. I'm sorry but I can control the capacitor because I don't have them in our stock.
You can mail me at marc at tuvo dot be
regards