Wiring for point motors

[Shane O]

Hi Folks. 

Need some help on point motor wiring. I use dcc. I have a mix of Lenz and ESU accessory decoders. I was using an old fleishmann transformer to power the switching of the point motors. It output 14 V ac. The point switching was hit and miss. I purchased an 18 V ac transformer to see if this would improve the switching. I connected it up the same way I had the old tx connected. As soon as I powered up it fried the decoder ( thankfully I only connected to one decoder to test it). 😧. Has anyone any idea why? I didn’t think an 18 v tx would do this over a 14 v tx. 

Can anyone tell me what and how they power their point motors?

Thanks

Shane.