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Error code reference

Viking Dishwasher Error Code POTS PANS + LED3

Moisture Sensor Disconnect

Viking codesViking dishwasher codes

Moisture Sensor Disconnect - moisture sensor circuit is open or disconnected.

First step from the service manual

Check for open moisture sensor and check connection to moisture sensor.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What POTS PANS + LED3 means on a Viking dishwasher

The POTS PANS + LED3 error code on a Viking dishwasher indicates a Moisture Sensor Disconnect condition. This means the control board has detected an open circuit in the moisture sensor loop, either because the sensor itself has failed internally or because the wiring connection between the sensor and the control board has been interrupted. The moisture sensor is responsible for detecting humidity levels inside the dishwasher tub, allowing the machine to optimize drying cycles and confirm that moisture conditions are within expected parameters.

An open circuit in the moisture sensor can result from a physically disconnected wire harness connector, a broken wire in the sensor circuit, or a failed sensor that no longer passes current through its circuit. Corrosion at the connector terminals is also a realistic contributor, particularly in the high-humidity environment of a dishwasher interior. Because the control system reads the sensor circuit as completely open rather than just out of range, the most likely root cause is a disconnection or wire break rather than a sensor reading drift.

Diagnosis should begin by locating the moisture sensor and inspecting its wiring harness connector for secure engagement. If the connector is seated properly, continuity testing across the sensor terminals will confirm whether the sensor circuit is open. A functional sensor should show measurable continuity or resistance; a completely open reading confirms sensor failure. If continuity is present at the sensor but the error persists, the fault may lie in the wiring between the sensor and the control board.

Source: manufacturer service documentation.

Common causes of POTS PANS + LED3

  1. 01

    Disconnected sensor wiring harness

    Wiring / connection

    The connector attaching the moisture sensor to the wiring harness may have come loose due to vibration or was accidentally dislodged during a previous repair. Visually inspecting and reseating the connector is the first step.

  2. 02

    Failed moisture sensor

    Part replacement

    The moisture sensor itself may have an internal open circuit, meaning it no longer passes continuity. Continuity testing across the sensor terminals will confirm this; a completely open reading indicates the sensor needs replacement.

  3. 03

    Broken or damaged wire in the sensor circuit

    Part replacement

    A wire in the sensor circuit may be broken internally or have a damaged section, creating an open circuit even when connectors appear seated correctly. Carefully inspecting the wire run for pinching, cuts, or heat damage can identify this issue.

  4. 04

    Corroded connector terminals

    Wiring / connection

    The high-humidity environment inside a dishwasher can cause corrosion to build up on the sensor connector terminals, interrupting the circuit. Inspecting the terminals for oxidation or greenish buildup and cleaning or replacing the connector can resolve this.

See the test procedure for each cause

Frequently asked questions about POTS PANS + LED3

What does POTS PANS + LED3 mean on a Viking dishwasher?
This error code indicates a Moisture Sensor Disconnect, meaning the control board is detecting an open or broken circuit in the moisture sensor loop. The moisture sensor monitors humidity levels inside the dishwasher tub to support proper drying operation. The fault points to either a disconnected wiring connector or a failed sensor. Diagnosis involves inspecting the sensor connection and testing the sensor circuit for continuity.
Can I fix the POTS PANS + LED3 error myself?
If you are comfortable working with appliance wiring, you can start by locating the moisture sensor and checking whether its connector is fully seated. Reseating a loose connector requires no parts and may clear the error. If the connector is secure, continuity testing with a multimeter can confirm whether the sensor has failed internally, which would require a replacement part. More complex wiring faults are best handled by a qualified technician.
Is it safe to use my Viking dishwasher while this error is displayed?
Operating the dishwasher with an active moisture sensor fault means the machine cannot properly monitor the drying cycle condition. While this may not create an immediate safety hazard, continued use without the sensor functioning could result in incomplete drying or the machine behaving unexpectedly. It is best to resolve the fault before regular use.
Will resetting the dishwasher clear the POTS PANS + LED3 error?
A simple reset is unlikely to permanently clear this error because the code reflects an actual open circuit condition in the sensor wiring or sensor itself. If the underlying cause is not corrected, the control board will detect the fault again and re-display the code. The sensor connection or the sensor component must be inspected and repaired for the error to clear reliably.
How much does it cost to repair a Viking dishwasher moisture sensor fault?
Repair costs vary depending on the cause. If the fix is simply reseating a disconnected connector, you may only pay a diagnostic service fee, typically in the range of $75 to $150. If the moisture sensor itself needs replacement, parts and labor combined can range from $150 to $350 or more depending on your location and the technician's rates. Wiring repairs fall somewhere in between depending on the complexity of the damage.

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