LED1 (LED RED) on CPU Board

LED1 twinkling means that computer controller is working well. Otherwise, replace CPU board or EPROM chip.

LED2 (LED Green) on CUP Board

LED2 twinkling means that RS232 I/O communication (between controller and panel) is well.

Panel CPU

Panel CPU is installed under the operation panel. If its indicator lights on, it means panel CPU works well. Otherwise, replace the panel.

Temperature Buffer Setting

Temperature buffer 1: 5 (if set "0", "++" will be displayed on monitor, which means that this heating zone is not used.)
Temperature buffer 2: 10
Temperature buffer 3: 5
Temperature buffer 4: 5

Oil temperature up limit: 0
Oil temperature down limit: 0 (oil temperature display is not used)