[amsat-bb] g 5500 rotator

Hi AMSATERS

My Yaesu G 5500 Rotators us blowing fuses. The primary of the transformer has <.5 ohms of resistance implying a shorted primary. I tried to order a L3190011 transferor from Yaesu they told me that part is no longer available. Do you believe my diagnosis is correct and where do I get a replacement transformer?

Thanks

nick