Electrolux Dishwasher Error Code i40

The i40 code indicates a problem with the analogue pressure sensor circuit in your Electrolux dishwasher. The pressure sensor monitors the water level inside the tub, and this code appears when the control board detects a signal from the sensor that is outside the expected range. The fault can originate from the sensor itself or from the wire harness connecting it to the control board. The dishwasher stops operation when this code is active to prevent potential damage from incorrect water levels.

Start by disconnecting power for 10 minutes to attempt a reset. If the error persists, visually inspect the wire harness between the pressure sensor and control board for damaged insulation, loose connectors, or corroded terminals. Also check whether the pressure sensor air tube or chamber is blocked by debris or detergent buildup. If the harness and connections are intact and the error remains, the pressure sensor itself is likely faulty and will need to be replaced.

If the error is caused by a loose connection or harness issue that a technician can reseat or repair, labor costs will be the primary expense, typically ranging from $75 to $150 depending on your location. If the pressure sensor itself needs replacement, expect to add the cost of the part on top of the labor fee, bringing the total repair estimate to a range of roughly $120 to $250 or more. A power reset that resolves the fault costs nothing.

A reset can clear the i40 error if it was caused by a temporary electrical glitch rather than a physical component failure. Disconnect the dishwasher from its power supply and leave it unplugged for a full 10 minutes before reconnecting. If the code returns after the reset and a normal cycle attempt, a hardware issue with the pressure sensor or wire harness is likely present and will require further diagnosis.

It is not recommended to continue running the dishwasher while the i40 error is active. The pressure sensor controls water level monitoring, and operating without a reliable sensor reading could lead to overfilling or the pump running without adequate water, either of which can cause damage to the appliance or a water leak in your home. Resolve the fault before resuming normal use.