I've replaced the original Tormach coolant pump with a more powerful (1/6 HP) pump to give more flow with a dual nozzle setup. The new pump is plugged into the controlled pump power outlet on the bottom of the control cabinet.
M8 does not start the new pump, however. I can start it and stop it just fine manually.
Any idea what's going on? Some kind of current-limiting protection kicking in, maybe?