Thor Kitchen Dishwasher Error Code E9

E9 means the control board detected a single button being held in an active state continuously for more than 30 seconds. This is outside the expected range of normal button interaction. The cause is typically water, moisture, or debris on the control panel surface keeping a button activated. In less common cases, a mechanically stuck or electrically failed button is responsible.

It is not recommended to run a wash cycle while the E9 error is active. A sustained button input signal can cause the control board to behave unpredictably, potentially triggering unintended cycle operations. Address the cause of the fault before resuming normal use.

If the cause is moisture or debris, the repair costs nothing beyond time spent cleaning the panel. If a button or membrane switch has physically failed, replacement control panel components can range from roughly 50 to 200 dollars or more depending on the part, plus any applicable labor costs if a technician is needed.

Start by turning off the dishwasher and wiping down the entire control panel with a dry cloth, paying close attention to the edges and gaps around each button. Remove any visible moisture, detergent residue, or debris. Once the panel is clean and dry, power the unit back on and check whether the error returns. If it does, press each button individually to confirm they all click and release normally, as a stuck button will require further inspection or part replacement.

A power reset may temporarily clear the E9 code, but the error will return if the underlying cause is not resolved. If water or debris is activating a button, the fault will reappear as soon as the panel detects the continuous input again. Cleaning the control panel surface is necessary before a reset will produce a lasting result.