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Error code reference

Samsung Air Conditioner Error Code YEL_FLICKER_RED_ON_GRN_FLICKER

DC fan error (SH12BWHX only)

Samsung codesSamsung air conditioner codes
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What the YEL_FLICKER_RED_ON_GRN_FLICKER error code actually means

This error means the outdoor unit's fan motor is not working correctly, which causes the air conditioner to shut down to protect itself from overheating. The system detected a problem with the fan that moves air across the outdoor coils. A technician will need to inspect the fan motor and its wiring to determine whether a connection, the motor itself, or the control board is the source of the problem.

Diagnostic procedure

The full YEL_FLICKER_RED_ON_GRN_FLICKER procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check fan motor connection at CN01 of outdoor control board
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Most common causes of YEL_FLICKER_RED_ON_GRN_FLICKER

Ranked by how often they cause this code
  1. 1Loose or faulty CN01 connector
  2. 2Failed DC fan motor
  3. 3Obstructed or seized fan blade
  4. 4Damaged fan motor wiring harness
  5. 5Defective outdoor control board

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Questions people ask about YEL_FLICKER_RED_ON_GRN_FLICKER

What does YEL_FLICKER_RED_ON_GRN_FLICKER mean on a Samsung air_conditioner?
This LED pattern indicates a DC fan motor error specific to the Samsung SH12BWHX outdoor unit. The combination of a flickering yellow LED, solid red LED, and flickering green LED tells you the outdoor control board has detected a fault in the DC fan motor circuit. The unit will not operate normally until the fault is resolved to protect the compressor and refrigerant system.
Will resetting the unit clear the YEL_FLICKER_RED_ON_GRN_FLICKER error?
Resetting the unit by cycling power may temporarily clear the error display, but the fault will return immediately if the underlying problem with the DC fan motor or its wiring is still present. A reset is not a repair, and repeated faults without correction can cause additional damage to the compressor or control board.
How much does it cost to repair a DC fan motor error on a Samsung air conditioner?
Repair costs vary depending on the root cause. If the issue is simply a loose connector, the cost may be limited to a service call fee, typically in the range of $75 to $150. A replacement DC fan motor for a mini-split outdoor unit generally costs between $100 and $300 for the part, with labor on top of that. An outdoor control board replacement can run $150 to $400 or more for the part alone.
How do I fix the DC fan error on a Samsung SH12BWHX?
Start by inspecting the fan motor wiring connector at CN01 on the outdoor control board, checking for loose pins, corrosion, or damaged wires. If the connection looks good, inspect the fan blade for obstructions and check that it rotates freely by hand. If the connection and blade are both fine, the DC fan motor or the outdoor control board itself will need to be tested further and likely replaced.
Is it safe to run my Samsung air conditioner when this error is showing?
No, you should not attempt to operate the unit while this error is active. The outdoor fan is critical for moving air across the condenser coil, and running the system without proper fan operation can cause the compressor to overheat and fail, which is a significantly more expensive repair than addressing the fan fault.

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