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Error code reference

Viking Range Error Code DSI 3 Flashes

Ignition lockout

Viking codesViking range codes

Ignition lockout — control attempted to ignite but no flame detected after allowing time and number of tries.

First step from the service manual

Check gas flow, spark leads, position of electrode and gas solenoid.

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

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What DSI 3 Flashes means on a Viking range

The DSI 3 Flashes error on a Viking range indicates an ignition lockout condition. DSI stands for Direct Spark Ignition, the system responsible for lighting the burner automatically. When the control board initiates an ignition sequence and fails to detect a flame signal after a set number of attempts within the allowed trial-for-ignition period, the board locks out and signals the fault with three flashes. This is a protective shutdown designed to prevent unburned gas from accumulating in the appliance.

The ignition sequence involves several components working in coordination: the gas solenoid valve must open to allow fuel flow, the spark electrode must generate a consistent spark, and the flame sensor must confirm combustion within the trial period. A failure in any one of these stages can prevent flame detection and trigger the lockout. Common points of failure include a clogged or misaligned electrode, a cracked spark lead, a faulty or stuck gas solenoid, or insufficient gas pressure reaching the burner.

Diagnosing this fault requires checking gas supply and flow first, since no amount of spark activity will produce a flame without adequate fuel pressure. From there, technicians should inspect the spark electrode for proper positioning relative to the burner port, check the condition and routing of the spark leads for cracks or carbon tracking, and test the gas solenoid for correct operation. The control board itself is rarely the first failure point but should be considered if all other components test within spec.

Source: manufacturer service documentation.

Common causes of DSI 3 Flashes

  1. 01

    Interrupted or insufficient gas supply

    Wiring / connection

    If the gas supply valve is partially closed, the line pressure is low, or another appliance is drawing heavily from the same line, the burner may not receive enough fuel to sustain ignition. Verify the shutoff valve is fully open and check pressure at the appliance if possible.

  2. 02

    Misaligned or fouled spark electrode

    Wiring / connection

    The electrode must be positioned correctly relative to the burner port to generate a spark in the right location. Food debris, grease buildup, or physical damage can displace the electrode or prevent a clean spark, causing the flame sensor to never confirm ignition.

  3. 03

    Damaged or faulty spark lead

    Part replacement

    The high-voltage spark lead connecting the ignition module to the electrode can develop cracks, carbon tracking, or loose connections over time. A compromised lead causes weak or absent spark and will prevent ignition even if the electrode and gas flow are both normal.

  4. 04

    Failed gas solenoid valve

    Part replacement

    The gas solenoid is an electrically controlled valve that opens to allow gas to flow to the burner during an ignition attempt. If the solenoid coil is open-circuited or the valve is mechanically stuck, gas will not reach the burner regardless of spark activity.

  5. 05

    Faulty ignition control board

    Part replacement

    If the DSI control board is not sending the correct voltage signal to the spark electrode or is failing to process the flame sensor feedback, the lockout will occur even when all other components are functioning properly. This is typically diagnosed after all other components have been ruled out.

See the test procedure for each cause

Frequently asked questions about DSI 3 Flashes

What does DSI 3 Flashes mean on a Viking range?
DSI 3 Flashes indicates an ignition lockout on a Viking range. The Direct Spark Ignition control attempted to light the burner multiple times and was unable to detect a flame within the allowed trial period. As a safety measure, the control board shuts down and locks out further ignition attempts. The underlying cause is typically a gas supply issue, a problem with the spark electrode or lead, or a faulty gas solenoid valve.
How do I fix the DSI 3 Flashes error on my Viking range?
Start by confirming that the gas supply valve is fully open and that other gas appliances in the home are working normally. Next, inspect the spark electrode for correct positioning and clean any grease or debris from around it. Check the spark lead for visible cracks or loose connections at both ends. If gas flow and the ignition components appear intact, the gas solenoid valve or control board may need to be tested and replaced by a qualified technician.
Is the DSI 3 Flashes error on a Viking range a safety concern?
Yes, this error should be taken seriously because it means the range detected an ignition failure and shut down to prevent unburned gas from accumulating. Do not attempt to manually force the burner to light repeatedly. If you smell gas at any point, turn off the gas supply to the appliance and ventilate the area before doing anything else. Once the fault is resolved, the control system will resume normal operation.
Will resetting the Viking range clear the DSI 3 Flashes error?
Cycling power to the range may clear the lockout temporarily and allow the ignition sequence to run again, but if the underlying fault is still present, the error will return after another failed ignition attempt. A reset is useful for confirming whether the fault is intermittent, but it does not fix the root cause. Persistent 3 Flashes errors require component-level diagnosis and repair.
How much does it cost to repair a Viking range DSI 3 Flashes error?
Repair cost depends on which component has failed. If the fix involves cleaning or repositioning the electrode, a service call alone may be sufficient, typically ranging from $80 to $150 depending on your area. Replacing a spark lead or electrode can add $30 to $80 in parts. A gas solenoid valve or ignition control board replacement will generally bring the total repair cost into the $200 to $500 range including labor, with control boards on the higher end of that range.

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