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Error code reference

Norcold Refrigerator Error Code A2

LP Gas re-ignition failure during normal gas operation; gas fails to re-ignite during a cycle period.

Norcold codesNorcold refrigerator codes

LP Gas re-ignition failure during normal gas operation; gas fails to re-ignite during a cycle period.

First step from the service manual

Check if LP gas tank has been filled recently and purge gas line to refrigerator.

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

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What A2 means on a Norcold refrigerator

The A2 error code on a Norcold refrigerator indicates an LP gas re-ignition failure during normal gas operation. This means the refrigerator attempted to re-ignite the burner during a standard cooling cycle and the flame failed to establish within the allotted ignition attempts. The gas burner system relies on a spark igniter, a functional gas valve, and a steady supply of LP fuel to complete a successful ignition sequence. When the control board does not detect a confirmed flame signal from the flame sensor after cycling through its ignition attempts, it logs the A2 fault and suspends gas operation.

The most common trigger for this fault is air trapped in the LP gas supply line, particularly after a tank has been recently filled or run dry and then refilled. Air pockets in the line prevent fuel from reaching the burner consistently enough to sustain ignition. Purging the gas line by briefly operating another LP appliance such as a stove burner can bleed trapped air from the system before re-attempting refrigerator ignition.

Beyond supply issues, the fault can also point to mechanical or electrical problems within the burner assembly itself. A clogged or corroded burner orifice restricts gas flow to the point where the air-to-fuel ratio is too lean to ignite reliably. A weak or failed spark igniter, a faulty gas valve that is not opening fully, or a deteriorated flame sensor that cannot confirm ignition are all hardware-level causes that require component inspection or replacement to resolve.

Source: manufacturer service documentation.

Common causes of A2

  1. 01

    Air in the LP gas supply line

    Wiring / connection

    After a propane tank is refilled or runs out, air can become trapped in the line and prevent gas from reaching the burner. Purging the line by running another LP appliance first will typically clear this condition.

  2. 02

    Empty or low LP gas tank

    Wiring / connection

    If the tank pressure is too low, the refrigerator cannot draw enough fuel to sustain ignition. Check tank level and refill if below approximately 20 percent capacity.

  3. 03

    Clogged or corroded burner orifice

    Part replacement

    Debris, rust, or insect nesting material can partially block the burner orifice and restrict gas flow enough to cause ignition failure. Inspect the orifice visually and clean or replace it as needed.

  4. 04

    Failed or weak spark igniter

    Part replacement

    The igniter electrode can crack, carbon up, or lose proper spark gap over time, resulting in inconsistent or absent spark. Inspect the electrode tip for damage and measure igniter output if possible.

  5. 05

    Faulty gas valve or flame sensor

    Part replacement

    A gas valve that is not opening fully will starve the burner of fuel, and a deteriorated flame sensor may fail to confirm ignition even when a flame is present. Either condition will cause repeated A2 faults and requires component-level testing and likely replacement.

See the test procedure for each cause

Frequently asked questions about A2

What does A2 mean on a Norcold refrigerator?
The A2 code means the refrigerator attempted to re-ignite the LP gas burner during a normal cooling cycle and the flame failed to establish. The control board cycles through a set number of ignition attempts, and when none succeed, it logs the A2 fault and stops trying. Common causes include air in the gas line, an empty tank, or a problem with the burner assembly components.
How do I fix an A2 error on my Norcold refrigerator?
Start by checking the LP tank level and confirming it has been filled recently. If so, purge trapped air from the line by running a stove burner or another LP appliance for a minute, then reset the refrigerator and attempt to re-light it. If the fault returns, inspect the burner orifice for blockage and check the igniter electrode for damage or carbon buildup. Persistent faults after those checks point to the gas valve or flame sensor, which may require replacement.
Is the A2 error on a Norcold refrigerator a safety concern?
The A2 code itself indicates that the refrigerator has already halted gas ignition attempts, meaning it is not continuing to release unburned gas indefinitely. However, you should still inspect the LP system for leaks before resetting and re-igniting the unit. If you smell propane around the refrigerator or LP connections, do not attempt to reset the unit and ventilate the area before investigating further.
Will resetting the refrigerator clear the A2 error code?
Resetting the unit will clear the displayed fault and allow the refrigerator to attempt ignition again, but it will not fix the underlying cause. If the same condition that triggered the A2 code is still present, the fault will return after the next failed ignition sequence. Address the root cause first, such as purging the gas line or cleaning the burner, before relying on a reset.
How much does it cost to repair an A2 error on a Norcold refrigerator?
If the fault is caused by air in the gas line or an empty tank, there is no repair cost beyond a propane refill. If a component such as the igniter electrode, burner orifice, gas valve, or flame sensor needs replacement, parts and labor costs typically range from around $75 to $400 or more depending on which component has failed and whether a technician is involved.

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