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Error code reference

Samsung Range Error Code A2

DC Motor Locking Error

Samsung codesSamsung range codes

DC Motor Locking Error — DC motor cannot operate due to defects of PCB, wiring, or debris blocking motor blade.

First step from the service manual

Check PCB, wiring, and motor blade for debris.

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 Samsung range

The A2 error code on a Samsung range indicates a DC motor locking error, meaning the DC motor responsible for a specific function (typically a cooling fan or convection fan) has failed to operate correctly. The control board detects that the motor is not spinning as commanded, triggering this fault to prevent further damage. The error points to a communication or mechanical breakdown between the PCB and the motor itself.

Three primary failure points are associated with this code: the PCB (printed circuit board), the wiring harness between the board and the motor, and physical obstruction of the motor blade. A defective PCB may fail to send the correct drive signal or voltage to the motor. Damaged, corroded, or disconnected wiring will interrupt that signal entirely. Debris lodged in the motor blade is a mechanical cause that physically prevents rotation, which the control board then detects as a locked rotor condition.

Diagnosis should begin with a visual inspection of the motor blade for any food debris, grease buildup, or foreign objects that could be blocking rotation. If the blade is clear, the wiring between the PCB and motor should be checked for continuity and secure connections. If wiring is intact and the motor still fails to operate, the PCB becomes the likely culprit and should be tested or replaced. Addressing the root cause is necessary before the error will clear permanently.

Source: manufacturer service documentation.

Common causes of A2

  1. 01

    Debris blocking the motor blade

    Wiring / connection

    Food particles, grease, or foreign objects lodged in the motor blade can physically prevent it from rotating. Inspect the motor blade directly and clear any obstructions before performing further diagnosis.

  2. 02

    Faulty or disconnected wiring

    Wiring / connection

    Damaged, burnt, or loose wiring between the PCB and the DC motor will interrupt the drive signal and trigger a locking error. Check all connectors and harness segments for secure seating, corrosion, or visible damage.

  3. 03

    Defective PCB

    Part replacement

    If the control board fails to output the correct signal or voltage to the motor, the motor will not operate even if it is mechanically sound. A board that shows burn marks, damaged components, or fails continuity testing should be replaced.

  4. 04

    Failed DC motor

    Part replacement

    The motor itself may have burned out or seized internally, preventing rotation despite receiving a proper signal. If the blade is clear and wiring checks out, the motor should be tested directly and replaced if it does not function.

See the test procedure for each cause

Frequently asked questions about A2

What does A2 mean on a Samsung range?
The A2 code on a Samsung range indicates a DC motor locking error. The control board has detected that the DC motor cannot operate, which can be caused by a defective PCB, wiring problems, or debris physically blocking the motor blade. The range displays this code to alert you that the motor circuit requires inspection before normal operation can continue.
How do I fix the A2 error on my Samsung range?
Start by inspecting the motor blade for any debris or obstructions and clearing anything you find. Next, check the wiring harness connecting the PCB to the motor for loose connectors, corrosion, or damage. If the wiring and blade are both in good condition, the PCB or the motor itself may need to be tested and replaced. Addressing the root cause is required for the error to clear permanently.
Will resetting my Samsung range clear the A2 error?
A power reset may temporarily clear the A2 code, but it will return if the underlying cause is not resolved. Unplugging the range or tripping the circuit breaker for a few minutes resets the control board, but if the motor blade is blocked, wiring is damaged, or the PCB is faulty, the error will reappear once the range attempts to operate the motor again.
Is it safe to use my Samsung range while the A2 error is displayed?
It is generally advisable to avoid using the range until the A2 error is diagnosed and resolved. The DC motor may be serving a cooling or ventilation function, and operating the range without it working correctly could lead to overheating of internal components. Resolving the fault before continued use helps prevent additional damage.
How much does it cost to repair a Samsung range A2 error?
Repair costs vary depending on the cause. Clearing debris from the motor blade involves no parts cost and is a straightforward DIY task. Wiring repairs can range from minimal cost if only a connector needs reseating to moderate cost if a harness section needs replacement. PCB replacement on a Samsung range typically falls in the range of $150 to $400 or more for parts and labor, depending on the specific model and service rates in your area.

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