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Error code reference

Dacor Dishwasher Error Code F-6

Controller/Floor Guard fault.

Dacor codesDacor dishwasher codes

Controller/Floor Guard fault.

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What F-6 means on a Dacor dishwasher

The F-6 error code on a Dacor dishwasher indicates a Controller/Floor Guard fault. This code involves two interrelated systems: the main electronic control board and the floor guard (also called a base pan flood sensor or leak detection system). The floor guard is a component positioned in the base of the dishwasher that detects water accumulation in the drip tray beneath the tub. When water reaches this sensor, it signals the controller, which then triggers the F-6 fault and typically halts the wash cycle to prevent further water damage.

This fault can originate from an actual water leak inside the machine or from a failure in the detection circuit itself. A leak from the door seal, pump assembly, hose connections, or tub can allow water to pool in the base pan and activate the floor guard sensor. Alternatively, the sensor itself may have failed, or the wiring between the sensor and the control board may be damaged, shorted, or corroded, causing a false fault signal even when no leak is present.

The controller component of this fault code points to the possibility that the main control board has developed a fault in the circuit responsible for reading the floor guard input. If the board is misreading the sensor signal due to internal component failure, the F-6 code can appear repeatedly even after the base pan is dried out and no physical leak is found. Diagnosing this code requires checking both the physical condition of the base pan and the integrity of the sensor and wiring before condemning the control board.

Source: manufacturer service documentation.

Common causes of F-6

  1. 01

    Water leak in the base pan

    Part replacement

    A leak from the door gasket, pump, spray arm, or internal hose has allowed water to collect in the drip tray at the bottom of the unit, triggering the floor guard sensor. Tilting the dishwasher slightly forward can allow accumulated water to drain out, and the source of the leak must be identified and repaired.

  2. 02

    Floor guard sensor failure

    Part replacement

    The flood sensor in the base pan may have failed or become stuck in a triggered state even without water present. If the base pan is dry but the code persists, the sensor itself may need to be tested and replaced.

  3. 03

    Wiring harness damage or corrosion

    Wiring / connection

    The wiring connecting the floor guard sensor to the control board may be corroded, pinched, or shorted, causing the controller to receive a false fault signal. Inspecting the harness connections at both the sensor and the board is an important diagnostic step.

  4. 04

    Door gasket or seal leak

    Part replacement

    A worn or damaged door gasket can allow water to escape the tub during the wash cycle and drip into the base pan. Inspect the door seal for cracks, gaps, or deformation along its entire length.

  5. 05

    Control board fault

    Part replacement

    If no leak and no sensor or wiring issue is found, the main electronic control board itself may have an internal failure in the circuit that reads the floor guard input. A faulty board can generate a persistent F-6 code and typically requires board replacement.

See the test procedure for each cause

Frequently asked questions about F-6

What does F-6 mean on a Dacor dishwasher?
The F-6 code on a Dacor dishwasher signals a Controller/Floor Guard fault. This means the dishwasher's control system has detected a potential water leak in the base pan beneath the tub, or the floor guard sensor circuit has malfunctioned. The appliance stops operation to prevent water damage to your floor. Both the physical base pan and the electronic detection system should be inspected.
How do I fix an F-6 error on my Dacor dishwasher?
Start by checking the base pan for standing water, which indicates an actual leak that must be located and repaired. If the base pan is dry, inspect the floor guard sensor and its wiring harness for damage or corrosion. If the sensor and wiring check out, the main control board may need to be tested or replaced. A qualified appliance technician can help pinpoint which component is responsible.
Is the F-6 error on a Dacor dishwasher a safety concern?
Yes, this code should be taken seriously because it can indicate an active water leak inside the appliance. Running the dishwasher while water is pooling in the base pan risks damage to your flooring, cabinetry, and the appliance itself. Do not continue operating the unit until the cause of the fault has been identified and resolved.
Will resetting my Dacor dishwasher clear the F-6 error?
A reset may temporarily clear the code, but if an underlying problem exists such as a leak, a failed sensor, or a faulty control board, the F-6 fault will return when the dishwasher runs again. Resetting is useful for ruling out a one-time glitch, but it is not a permanent fix. The root cause must be addressed to prevent the error from recurring.
How much does it cost to repair an F-6 error on a Dacor dishwasher?
Repair costs vary depending on the cause. A door gasket replacement is typically a lower-cost repair, generally in the range of $50 to $150 including parts and labor. A floor guard sensor replacement is moderately priced. Replacing the main control board tends to be the most expensive option, with total repair costs potentially ranging from $200 to $500 or more. Getting a diagnostic quote from a certified technician before authorizing repairs is recommended.

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