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Error code reference

Viking Dishwasher Error Code Pan Moisture (both lights flash continuously)

Water detected in the base pan by the moisture sensor.

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What the Pan Moisture (both lights flash continuously) error code actually means

Your Viking dishwasher has detected water pooling in the drip pan located underneath the machine, which usually means there is a leak somewhere inside the appliance. The dishwasher shuts down and flashes both lights to prevent water from damaging your floor or cabinets. You should check under and around the dishwasher for signs of water before running it again.

Diagnostic procedure

The full Pan Moisture (both lights flash continuously) procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check the base pan for water. Check for 175K ohms.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of Pan Moisture (both lights flash continuously)

Ranked by how often they cause this code
  1. 1Door gasket leak
  2. 2Loose or damaged hose connection
  3. 3Failed pump seal
  4. 4Faulty water inlet valve
  5. 5Residual moisture triggering the sensor

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Questions people ask about Pan Moisture (both lights flash continuously)

What does Pan Moisture (both lights flash continuously) mean on a Viking dishwasher?
This error means the moisture sensor located in the base pan beneath the dishwasher tub has detected water. The sensor is designed to alert you to a potential leak before it causes damage to your floor or cabinetry. Both indicator lights flash continuously as a warning to stop operation and investigate the source of the water. The sensor should read approximately 175k ohms when dry; a significantly lower reading confirms moisture is present.
Will resetting the dishwasher clear the Pan Moisture error?
A reset may temporarily clear the flashing lights, but the error will return if water is still present in the base pan or if an active leak continues to introduce water. The underlying cause must be identified and resolved for the repair to hold. Always dry the base pan and verify the sensor resistance before assuming the issue is resolved.
How much does it cost to repair a Viking dishwasher Pan Moisture error?
Repair costs vary widely depending on the cause. Replacing a door gasket typically runs in the range of $50 to $150 including parts and labor. A pump seal or water inlet valve replacement can cost between $150 and $400 depending on parts pricing and labor rates in your area. If the leak is simply a loose hose clamp, the fix may cost very little. Having a technician diagnose the specific source before ordering parts helps avoid unnecessary expense.
How do I fix the Pan Moisture error on my Viking dishwasher?
Start by pulling the dishwasher out and inspecting the base pan for standing water. If water is present, dry it thoroughly and then trace the source of the leak by checking the door gasket, hose connections, pump seals, and water inlet valve. Repair or replace the leaking component before running the dishwasher again. Once the pan is dry and the sensor reads near 175k ohms, the error should clear.
Is it safe to run my Viking dishwasher when the Pan Moisture error is showing?
No, you should not run the dishwasher while this error is active. Continuing to operate the appliance with water in the base pan can worsen an existing leak, cause electrical hazards, and lead to damage to your flooring or cabinetry. Stop use until the source of the water is identified and repaired.

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