First things first: have you checked that your dimmer operates at 100% when dimmed and controlled locally?
If not, let's find out how the wiring installation can be improved (diagrams coming soon). And if everything is good to go with manual control, let's add it to your Vera network:
1. Select the Devices tab in your Vera app. Then click on the gray "+ Add Device" button
2. Choose Generic Z-Wave Device from the device list
3. Tap the UPPER paddle 3 times quickly
4. A new Z-Wave dimmer switch will appear on your device list
If you're unable to connect the dimmer successfully, try excluding it from the network using the steps shown here.
If you have any questions about the process above, let us know! We're always happy to help.