Bosch Refrigerator Error Code Et

The Et code on a Bosch refrigerator indicates a level switch error, meaning the control board has not received a pulse signal from the water level switch for a period of time. When this happens, the refrigerator switches from level-based water supply control to a timed fill mode and skips the normal supply mode. The error resolves automatically once the level switch resumes normal operation and pulse signals are detected again.

A power reset may temporarily clear the Et code from the display, but the error will return if the underlying level switch issue has not been resolved. The code is designed to self-terminate once the control board detects that the level switch has resumed normal pulse operation. Resetting without fixing the root cause will result in the refrigerator continuing to operate in timed fill mode rather than accurate level-based control.

Repair costs vary depending on the root cause. If the fix involves only reseating a loose wiring connection or fully opening the water supply valve, there may be no parts cost at all. Replacing a faulty level switch typically runs between $50 and $150 for the part, with additional labor costs if a technician is hired. A water inlet valve replacement can range from $30 to $100 or more depending on the specific model.

Start by checking the level switch for proper operation, including continuity and signal output during a fill cycle. Inspect the wiring harness between the level switch and control board for loose connections, corrosion, or damage. Also confirm that your water supply line is fully open and that water pressure is adequate. If the switch itself has failed, it will need to be replaced to clear the error permanently.

The refrigerator does implement a fallback timed water supply mode when the Et error is active, so basic operation continues. However, ice production and water dispensing may be unreliable since the appliance is no longer measuring water levels accurately. It is advisable to have the level switch inspected and repaired promptly to restore proper water supply control and prevent potential overfill or underfill issues.