Okuma Alarm-C 3736 Coolant filter
The coolant filter unit is clogged.
Code
1->A coolant filter 1 kept clogged for 2 seconds or longer.
2->A coolant filter 2 kept clogged for 2 seconds or longer.
3->The clogged through spindle coolant filter/ input kept OFF for 1 second or longer while the through spindle coolant command is active.
4->The clogged through spindle coolant filter 2/ input kept OFF for 1 second or longer while the through spindle coolant command is active.