Twist Tray Icemaker Test Button Locations
Early Twist Tray Icemakers had the motor and test button located on the right side of the icemaker. Press and hold 3-5 seconds or until icemaker starts to move for test mode:
In-Door Twist Tray Icemaker Test Button Locations
Newer Twist Tray Icemakers have the motor and test button located on the left side of the icemaker. Press and hold 3-5 seconds or until icemaker starts to move for test mode:
Freezer Section Twist Tray Icemaker Test Button Location
Newer Twist Tray Icemakers have the motor and test button located on the left side of the icemaker. Press and hold 3-5 seconds or until icemaker starts to move for test mode:
If the icemaker will not cycle in test mode, try resetting the whole unit by disconnecting power. If the icemaker still will not cycle in test mode after reset, you will need to check for harness connection issues. In-Door Icemakers will have 3 connection points (Main / Display / or Sub PCB, Left Door Hinge, Icemaker). Freezer Icemakers will have 2 connection points (Main PCB and Icemaker). Reseat all connectors in the icemaker circuit and try test mode again.
If the Icemaker still does not cycle in test mode after resetting all connectors, you will need to see if there is any voltage being output by the PCB that powers the icemaker. For this you will need to refer to the service manual for your specific model and product code as the icemaker could be powered from the Main PCB, Sub PCB, or the Display PCB.
Examples from LRMVS3006 dual icemaker model: