Yes I have the same problem with the pump not running in the mash out period. I can pause the process to turn the heat element off or go to the next step 'boil', but if I go to the manual process I can turn the element on & off but when I press the pump button it just clicks on for 1/4 of a second and goes straight off. I've configured & initialised all the settings before using to brew but always have the same problem. All the buttons seem to be mapped out okay so I think there be a small glitch in the code. I've had a lot less problem with the screen scrambling since I disabled the pump_prime(); in VOID auto_mode.