Bosch Dishwasher Error Code E:11

E:11 signals a functional safety fault caused by a failed internal consistency check between two NTC temperature sensors (NTC1 and NTC2) in the heat pump. The dishwasher stops operation as a precaution because it cannot confirm reliable temperature data. The fault points to either a failed NTC sensor, a wiring harness problem, or a faulty power module.

No. The E:11 code is classified as a functional safety error, meaning the dishwasher's control system has determined it cannot safely monitor heat pump temperatures. Running the machine in this condition risks overheating or undetected thermal faults. The dishwasher should remain out of service until the underlying fault is corrected.

A reset may temporarily clear the error code and allow the dishwasher to start, but the fault will return if the underlying hardware problem is not repaired. Because E:11 is a functional safety error tied to actual sensor or wiring conditions, it requires physical diagnosis and component repair or replacement to resolve permanently.

A knowledgeable DIYer can check the wiring harness for visible damage and inspect connector pins for corrosion. However, confirming the fault requires a multimeter to measure NTC resistance at specific terminals, and the repair may involve replacing the heat pump assembly or the power module. If you are not comfortable working with appliance electronics and connectors, a qualified technician should handle the diagnosis and repair.

Repair cost depends on which component is at fault. Heat pump assembly replacement typically ranges from $200 to $450 in parts and labor, while power module replacement can range from $150 to $350 depending on the model and labor rates in your area. A harness or connector repair, if that is the sole fault, is generally less expensive.