Frigidaire Refrigerator Error Code Et

The Et error code on a Frigidaire refrigerator indicates a horizontal or level switch error, specifically that the control board has stopped receiving pulse signals from the level switch for an extended period. This switch is part of the ice maker or dispenser system and is used to detect the position or movement of a component, typically the auger motor or ice level arm. When the control board expects a timed sequence of pulses confirming mechanical motion and receives none, it logs the Et fault and automatically shifts operation into a time-based supply mode, bypassing the normal pulse-confirmed dispensing cycle entirely.

The most common root cause is a failed or disconnected level switch, but wiring harness faults between the switch and the control board are also frequently responsible. Mechanical obstructions that prevent the monitored component from moving can also trigger this code, since a physically blocked part will produce no pulse output even if the switch itself is functioning. In some cases, the control board itself may fail to read or process incoming pulse signals correctly, though board failures are less common than switch or wiring issues.

Because the control automatically shifts to time-based supply mode when Et is detected, the refrigerator continues to function in a degraded capacity rather than shutting down entirely. This fallback behavior means ice or water dispensing may still occur but will no longer be precisely regulated by positional feedback. Proper diagnosis requires checking the switch for continuity, inspecting the wiring harness for damage or loose connectors, and confirming that no mechanical obstruction is preventing normal component movement.