Hi, I have a similar issue. Purchased a replacement timer for my Aga six-four DC6 and have received a slightly different looking timer. The old one doesn’t power up, neither does the new one if i replace the connections i have in similar places. see front and back pictures of old and new. https://drive.google.com/drive/folders/1FzNLq-jOZ4TRZ7JeMBvpl5B10xHM1vYO?usp=sharing