Dacor Range, Oven, Cooktop Error Code L6

The L6 code on a Dacor third generation dishwasher indicates a pressure sensor fault where the sensor output signal has exceeded 4.8 volts. This is an out-of-range reading that causes the control unit to stop normal operation. The fault can originate from the pressure sensor itself, the connecting cables, or the control unit.

You should not attempt to operate the dishwasher while the L6 fault is present. The pressure sensor monitors water level to prevent overfilling, and running the unit without a reliable sensor signal could result in water overflow or damage to internal components. The dishwasher should remain off until the fault is resolved.

Repair costs depend on which component is at fault. Pressure sensor replacement parts typically range from around $30 to $80, while a control board can range from $150 to $400 or more depending on availability. Adding labor costs from a qualified technician, total repair expenses can range from $100 to $500 or beyond depending on the diagnosis.

Some basic checks are within reach for a knowledgeable DIYer, such as inspecting the wiring harness for visible damage and reseating the sensor connectors. However, accurately measuring sensor output voltage and diagnosing a faulty control board require a multimeter and familiarity with appliance electronics. If the sensor or control board needs replacement, a qualified technician is recommended.

A reset may temporarily clear the L6 code from the display, but if the underlying issue with the pressure sensor, wiring, or control unit has not been corrected, the fault will return once the dishwasher runs through its next cycle. A reset alone is not a fix and should only be used as part of the diagnostic process.