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Error code reference

Dacor Dishwasher Error Code F-2

Circulation pump/drying fan fault

Dacor codesDacor dishwasher codes

Circulation pump/drying fan fault – the controller looks for relay closure on the power board; individual componentry is not checked for continuity or proper function.

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What F-2 means on a Dacor dishwasher

The F-2 error code on a Dacor dishwasher signals a fault in the circulation pump or drying fan circuit. The controller monitors the power board for relay closure to confirm these components are being energized. If the expected relay signal is not detected, the controller flags the F-2 fault and typically halts the wash cycle. Importantly, the diagnostic logic at the controller level does not individually verify continuity or proper operation of the pump motor or fan motor themselves, meaning the fault is detected at the relay/power board level rather than through direct component testing.

The circulation pump is responsible for pressurizing and moving wash water through the spray arms during the wash and rinse cycles. The drying fan assists in the condensation drying process by moving air across the dishwasher interior. Both components share fault reporting under F-2, so isolating which one is contributing to the error requires hands-on inspection. Because the controller only checks for relay closure on the power board, a failed relay, a failed power board, or a wiring break between the board and either component can all produce this code without the motor or fan itself being defective.

Common contributing factors include a failed or stuck relay on the power board, wiring harness damage or loose connectors between the power board and the circulation pump or fan, a seized or failed pump motor drawing excessive current, or a power board that is not supplying the correct output to trigger relay closure. Technicians should begin at the power board, verifying relay operation and supply voltage to the relevant output circuits before condemning the pump or fan motor.

Source: manufacturer service documentation.

Common causes of F-2

  1. 01

    Failed relay on the power board

    Part replacement

    The controller checks for relay closure on the power board to confirm the pump or fan circuit is active. A stuck or burned relay will prevent this closure and trigger F-2 without any fault in the pump or fan motor itself.

  2. 02

    Faulty or damaged power board

    Part replacement

    If the power board is not generating the correct output signal to close the relay, the controller will log F-2. Inspect the board for visible burn marks, damaged traces, or failed components.

  3. 03

    Loose or damaged wiring harness

    Wiring / connection

    Broken wires or disconnected connectors between the power board and the circulation pump or drying fan can interrupt the relay signal path. Check all connectors in the pump and fan circuits for corrosion, looseness, or physical damage.

  4. 04

    Seized or failed circulation pump motor

    Part replacement

    A pump motor that has seized or burned out may draw excessive current, causing the relay circuit to fail to close properly. Manually check the pump impeller for obstruction and test the motor for continuity if the wiring and board check out.

  5. 05

    Failed drying fan motor

    Part replacement

    If the drying fan motor has failed, the relay associated with that circuit may not close as expected. Inspect the fan for physical obstruction and test the motor if other causes have been ruled out.

See the test procedure for each cause

Frequently asked questions about F-2

What does F-2 mean on a Dacor dishwasher?
F-2 indicates a circulation pump or drying fan fault. The control board monitors the power board for relay closure to confirm these circuits are active, and F-2 is triggered when that relay signal is not detected. The fault can originate from the relay itself, the power board, the wiring, or the pump or fan motor. Because the controller only checks relay closure and not individual component continuity, hands-on testing is needed to pinpoint the exact cause.
Can I fix the F-2 error on my Dacor dishwasher myself?
Some causes of F-2, such as a loose wiring connector, can be addressed by a knowledgeable DIYer comfortable working with appliance electrical systems. However, diagnosing a failed relay or power board requires testing electrical circuits and handling line-voltage components, which is best handled by a qualified technician. If you are not experienced with appliance electrical repair, professional service is the safer route.
Is it safe to keep using my dishwasher when F-2 is displayed?
No, you should not continue running the dishwasher while F-2 is active. The code typically halts the cycle because the pump or fan circuit is not functioning correctly. Running the unit in this state could worsen an underlying electrical fault or leave dishes incompletely washed and unrinsed.
Will resetting the dishwasher clear the F-2 error?
A reset may temporarily clear the F-2 code, but if the underlying fault in the relay, power board, wiring, or motor remains, the error will return during the next cycle. Resetting is useful for ruling out a transient glitch, but a recurring F-2 code requires proper diagnosis and repair of the root cause.
How much does it cost to repair a Dacor dishwasher F-2 error?
Repair costs vary depending on the failed component. A wiring repair or connector fix is typically the least expensive path, while power board replacement tends to fall in a higher range, often between $150 and $400 or more for parts and labor combined. Circulation pump or fan motor replacement costs fall somewhere in between, depending on parts availability and local labor rates. Getting a diagnostic service call first is the best way to get an accurate estimate.

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