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Error code reference

Viking Refrigerator Error Code LED OFF

No input power signal to inverter or inverter is damaged; diagnostic LED is not illuminated, compressor is…

Viking codesViking refrigerator codes

No input power signal to inverter or inverter is damaged; diagnostic LED is not illuminated, compressor is OFF.

First step from the service manual

Check input power signal (115V) at inverter. If no signal, check input power connections. If voltage is within spec, unplug inverter for 2 minutes, reconnect and wait 12 minutes. If LED still off and compressor OFF, change the inverter.

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

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What LED OFF means on a Viking refrigerator

The LED OFF condition on a Viking refrigerator indicates that the diagnostic LED on the compressor inverter board is not illuminated and the compressor is not running. The inverter board is responsible for converting incoming AC power into the variable-frequency drive signal used to control the variable-speed compressor. When the diagnostic LED is dark, it signals that the inverter has either lost its 115V input power signal entirely or that the inverter board itself has failed and cannot operate.

The inverter receives a 115V input signal that must be present for the board to initialize and begin driving the compressor. If this voltage is absent, the inverter cannot power on, which results in the LED remaining off and the compressor staying idle. Causes for missing input voltage include loose or corroded wiring connections at the inverter harness, a failed component upstream in the power path, or a wiring fault between the control board and the inverter.

If the 115V input signal is confirmed to be present at the inverter terminals, the inverter itself may be damaged or locked in a fault state. A power-cycle reset procedure, specifically unplugging the inverter for 2 minutes and then reconnecting it with a 12-minute wait period, can clear transient faults. If the LED remains off after this reset and the compressor does not start, the inverter board has failed and requires replacement. Because the compressor is completely off during this condition, the refrigerator will not cool and food spoilage becomes a concern.

Source: manufacturer service documentation.

Common causes of LED OFF

  1. 01

    Loss of 115V input power to the inverter

    Wiring / connection

    The inverter board requires a 115V input signal to initialize. If that voltage is absent due to a wiring fault or upstream failure, the LED will remain off and the compressor will not run.

  2. 02

    Loose or corroded inverter wiring connections

    Wiring / connection

    Poor contact at the inverter harness connectors can interrupt the input power signal. Inspect the connector pins and wiring at the inverter for looseness, corrosion, or damage.

  3. 03

    Inverter board locked in a fault state

    Wiring / connection

    The inverter can sometimes become locked due to a transient fault. Unplugging the inverter for 2 minutes and reconnecting it, then waiting 12 minutes, may clear the condition without replacing any parts.

  4. 04

    Failed inverter board

    Part replacement

    If input voltage is confirmed at spec and the reset procedure does not restore the LED or compressor operation, the inverter board itself has failed internally and must be replaced.

See the test procedure for each cause

Frequently asked questions about LED OFF

What does LED OFF mean on a Viking refrigerator?
The LED OFF condition means the diagnostic LED on the compressor inverter board is not illuminated and the compressor is not running. This points to either a missing 115V input power signal at the inverter or a failed inverter board. Because the compressor is off, the refrigerator will not cool until the issue is resolved.
Can I fix the LED OFF error on my Viking refrigerator myself?
A knowledgeable DIYer can start by checking that the inverter wiring connections are secure and free of corrosion. You can also attempt the reset procedure by unplugging the inverter for 2 minutes, reconnecting it, and waiting 12 minutes to see if the compressor starts. However, verifying the 115V input signal and replacing the inverter board typically requires electrical testing tools and familiarity with refrigeration components, so a qualified technician is recommended if the basic steps do not resolve the issue.
Will resetting the refrigerator clear the LED OFF error?
A standard power cycle of the refrigerator may not be sufficient on its own. The correct reset procedure involves physically unplugging the inverter board connector for 2 minutes, reconnecting it, and then waiting 12 minutes for the system to reinitialize. If the LED remains off and the compressor does not start after this procedure, the error will not self-clear and the inverter board will need to be replaced.
Is it safe to keep food in my Viking refrigerator when the LED OFF error is showing?
No, it is not safe to assume food will remain at a safe temperature. The LED OFF condition means the compressor is completely off, so the refrigerator is not actively cooling. Perishable foods should be moved to another refrigerator or packed with ice while the repair is being completed.
How much does it cost to repair a Viking refrigerator with the LED OFF error?
Repair costs vary depending on whether the problem is a wiring connection issue or a failed inverter board. Simple wiring repairs are typically less expensive, while inverter board replacement can cost significantly more when factoring in parts and labor. For a Viking refrigerator, total repair costs including professional labor generally range from around $150 to $600 or more depending on parts pricing and your location.

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