The blinking LED light next to the ON/OFF switch for the ice maker is a diagnostic light for the level detection system in the ice maker. When you open the freezer door, it should be blinking twice, pausing and repeating. This indicates that the beam is blocked and the ice maker will not go into a harvest cycle and dump ice onto the floor when the door is open. A flapper on the left side of the door blocks an emitter beam when the door is open. This is normal. If you push the flapper door in, the light should burn steady instead of flash since the beam will be unblocked. A more detailed explanation of this system is shown at the top of the image below.
If the lights are working properly, this indicates that the control boards are apparently okay. Check the water dispenser to make sure that you have good water flow. A problem with the water supply can prevent the ice maker from filling. If the water dispenser flow is weak, pull the filter out to see if the flow increases significantly. The filter housing has an automatic bypass to water will not leak from the housing or elsewhere in the system with the filter removed. If the flow increases then a clogged water filter could have caused your ice maker problems. If you still have weak water flow, shut off the water supply and remove the water supply line on the back of the refrigerator. Place the end of the line in a bucket and then briefly turn on the water to check the water pressure and flow. If the water supply is weak, this could be causing your problem. You may need to have a plumber fix this water supply line. If the water supply is okay, then you can check the fill tube above the fill cup in the ice maker module for a freeze plug.
The bottom image shows additional advanced technical troubleshooting for this type of ice maker. If you are confident that you can safely complete the advanced procedures, you can use the information below to further diagnose your ice maker problem. You could have a problem with the ice maker module, a wiring failure or a bad water valve assembly that could prevent the ice maker from working properly. Use extreme care if you use the insulated jumper wire to bridge the contacts in the ice maker module. If you are not completely confident in your technical ability to safely complete the testing procedures described below, I recommend that you have a service technician diagnose and repair the ice maker. Here is a link for the Sears Service website in case you need it:
Sears Home Services
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