The red LED light on the optics control board flashing twice indicates that the level sensing system is likely okay. The light flashing twice is an automatic diagnostic test. Try pressing in on the flapper on the left side that covers the emitter beam when the door is open. The LED light should turn solid. If not, then you will likely need to replace the emitter and receiver boards. The kit with both the emitter and receiver boards is part number 4389102. You can order this kit from the
website. If you replace these control boards yourself, be sure that you
unplug the refrigerator
to disconnect electrical power before accessing internal components.
If the boards pass the diagnostic test (the LED light turns solid when the beam is not blocked) then you could have a problem with the ice maker module or the solenoid water fill valve. Here is a link for a previous answer that provides advanced technical troubleshooting for this type of ice maker system:
Why won't my ice maker produce ice after I replaced the emitter and receiver boards (4389102) per your instructions?
If you use this advanced technical troubleshooting, be sure that you follow electrical safety guidelines.
Unplug the refrigerator
when accessing internal components. Follow the instructions in the technical information carefully.
If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services