UNPLUGGED refrigerator. Removed light bulb panel and bulbs. Used thin screwdriver to pop whole panel front inside top of refrig. Careful not to break to many plastic pressure clips otherwise cannot put back up. Unplugged connectors so could work on table. Used thin blade the separate bottom panel (w/digital readout) from light panel.
Located Thermistor. Cut white wires long enough to splice into connector wires. Taped splice with electrical tape.
Reversed procedures. 1-2 hours
Popped out back panel on rear inside wall upper. Propped open small door, don't break spring, so better flow of cool air from freezer. Had to wait several hours for refrigerator to stop flashing and drop to proper level. Replaced rear upper door.