Keep in mind the unit is supposed to do this. It protects the machine...the protection is doing its job. It's not a fault if it acts according to what you described Kempy (several seconds). Again, doing stuff like this is NOT how the unit is intended to be used and is improper operation and we don't guarantee it to operate if its used incorrectly in a way that could potentially damage the machine. Stepping on the pedal to check your amps is not intended as a normal way of operation, and is a poor/bad habit. All the HF energy has to have someplace to go to. It's going to jump off the board onto something else if it doesn't have a path to travel down. That's why that's built in. If you need to check the amperage, just jog or barely touch the control knob. Set amps will display. But if you need to keep on stepping on the pedal for an extended time to check your amps, you need to max out your preflow, which will delay the HF from coming on.