Daewoo Refrigerator Error Code Et

The Et error code on a Daewoo refrigerator indicates a level switch error, specifically related to the horizontal switch used in the ice-making system. The level switch is a sensor that detects when the ice bin has reached its fill capacity by sensing pulses as ice cubes are made and deposited. When the control board stops receiving pulses from this switch for a defined period of time, it interprets this as a sensor failure and triggers the Et code. The refrigerator does not shut down entirely in response to this fault. Instead, the control system reverts to a time-based operation mode, meaning the ice maker runs on a fixed timer cycle rather than relying on bin-level feedback. The supply mode, which is the normal sensor-driven fill cycle, is bypassed entirely.

The horizontal level switch is typically a mechanical or electromechanical component positioned inside or adjacent to the ice storage bin. Its job is to register each ice drop event or detect the physical level of ice in the bin and send a corresponding pulse signal back to the control board. If the switch arm is stuck, damaged, or the wiring harness supplying signal continuity is broken or corroded, no pulses reach the board and the error is logged. A freezer that has accumulated excessive frost near the ice maker assembly can also mechanically obstruct the switch arm, preventing it from cycling and generating the expected pulses. Diagnosing this code starts with physically inspecting the level switch, checking for obstruction, verifying the switch actuates freely, and confirming that wiring connections between the switch and control board are intact and free of corrosion.