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Error code reference

Samsung Air Conditioner Error Code OUTDOOR_YELLOW_GREEN_FLICKER_RED_ON

DC fan error (SH12BWHX only)

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

Your Samsung air conditioner's outdoor unit has detected a problem with the fan motor that moves air across the unit outside your home. Without this fan working correctly, the system cannot release heat properly and will not cool effectively. A technician needs to inspect the wiring and fan motor on the outdoor unit to resolve this issue.

Diagnostic procedure

The full OUTDOOR_YELLOW_GREEN_FLICKER_RED_ON 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 to CN01 on outdoor control board
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Most common causes of OUTDOOR_YELLOW_GREEN_FLICKER_RED_ON

Ranked by how often they cause this code
  1. 1Loose or disconnected CN01 connector
  2. 2DC fan motor failure
  3. 3Damaged fan motor wiring harness
  4. 4Outdoor control board fault
  5. 5Fan blade obstruction or mechanical binding

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Questions people ask about OUTDOOR_YELLOW_GREEN_FLICKER_RED_ON

What does OUTDOOR_YELLOW_GREEN_FLICKER_RED_ON mean on a Samsung air_conditioner?
This LED indicator pattern signals a DC fan motor error on the Samsung SH12BWHX outdoor unit. The control board has detected a problem with the outdoor fan motor, which could be caused by a wiring connection fault, a failed motor, or a defective control board. The yellow-green LED flickering combined with the red LED staying solid is specific to this fault on this model.
Is it safe to keep running my Samsung air conditioner with this error active?
It is not recommended. If the outdoor fan motor is not operating, the condenser cannot reject heat properly, which can cause the compressor to overheat and fail. Continuing to run the unit under these conditions risks causing significantly more expensive secondary damage.
How much does it cost to repair a DC fan error on a Samsung outdoor unit?
Repair costs vary depending on the failed component. Replacing the outdoor DC fan motor typically costs between $150 and $400 including parts and labor. A new outdoor control board can range from $200 to $500 or more. If only a wiring connector or harness is at fault, the repair cost will be considerably lower.
Can I fix the DC fan error on my Samsung outdoor unit myself?
The first step, checking that the wiring harness is firmly connected at connector CN01 on the outdoor control board, is something a knowledgeable DIYer can perform after safely disconnecting power to the unit. However, if the motor or control board needs replacement, those repairs involve handling refrigerant-side components and high-voltage wiring, which are best handled by a certified technician.
Will resetting my Samsung air conditioner clear this error code?
A power reset may temporarily clear the fault indicator, but if the underlying cause is a failed motor, damaged wiring, or a faulty control board, the error will return as soon as the unit attempts to operate the outdoor fan. The root cause must be diagnosed and corrected for the error to stay clear.

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