Can't turn extruder heater on with heater icon on Manual Control tab.
Can't turn extruder heater on with heater icon on Manual Control tab. All other icons works. For example bed heater is working as it works earlier. I can't connect occur of this problem with another event. Last time i use my printer it works well. The most strange thing that if i press Print from the Print Preview tab printer starts to heat bed and then it heat extruder and it works. I can turn extruder heater with gcode as well.
When i press extruder heater icon it prints ok but icon still crossed with red line.
I updated Repetier host few weeks earlier, but it works well.
I use 2.1.6 version and Sprinter firmware and i have never this problem earlier.