Atwood Refrigerator Error Code CHECK FLASH + GAS ON

This error means the refrigerator was set to GAS mode and attempted to light the propane burner, but the burner did not ignite within the 40 to 45 second trial ignition window allowed by the control board. When the trial period expires without a confirmed flame, the board shuts down the ignition attempt and sounds a 240ms beep to notify the user. It does not necessarily indicate a broken component, as an empty tank or air in the line can cause the same result.

Start by confirming the propane tank is full and the valve is fully open, then cycle the refrigerator off and on two to three times to purge any air from the gas line. If the burner still will not ignite, inspect the burner orifice for blockages and check the igniter for fouling or damage. Persistent failures after these steps may point to a faulty gas valve or igniter that requires replacement.

If the issue is simply air in the gas line, there is no parts cost and the fix is a free reset procedure. If the igniter needs replacement, parts and labor typically range from around $50 to $150 depending on the component and service provider. A faulty gas valve is a more involved repair and costs can range from $100 to $300 or more, including parts and labor.

Turning the refrigerator off and back on initiates a fresh 40 second ignition trial cycle and is the recommended first step. If air is in the gas line after a tank change, it may take two to three reset attempts before the burner lights successfully. If the error returns consistently after multiple resets with a full propane supply, a component-level problem is likely the cause.

The error code is part of the refrigerator's built-in safety system. When the burner fails to ignite within the trial period, the control board stops the ignition sequence to prevent unburned gas from continuing to flow. This means the unit is designed to shut down safely rather than allow a hazardous accumulation of gas. If you smell propane near the unit, turn off the gas supply and ventilate the area before attempting any further diagnostics.