Prontface connecting but Actions not working (6 replies)

Hi there,

After having replaced my Melzi with a RAMPS 1.4, I uploaded Merlin to the board using Arduino.
Unfortunately once prontface is connected none of of the actions seem to work.

It it worth noting that the printer was working before the controller change.
How can I troubleshoot this?
How can I check my hardware is actually still working?

Help is much appreciated.

Thanks

Charles