I've got a client with existing FX and Unique transformers. The original contractor installed mechanical timers and they're not happy with them so I'm replacing them with astro timers. I'm able to get the Intermatic astro timer to work fine in the Unique transformers but if I try to install it in the FX transformers, it will trip the breaker. Anybody know what timer will work in the FX transformers? Thanks in advance.