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Error code reference

Samsung Air Conditioner Error Code OUTDOOR_YELLOW_FLICKER_GREEN_FLICKER

Compressor rotation error

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What the OUTDOOR_YELLOW_FLICKER_GREEN_FLICKER error code actually means

Your Samsung air conditioner's outdoor unit has detected that the compressor, the component responsible for circulating refrigerant and actually cooling your home, is not spinning correctly or is failing to start. The unit has shut itself down to avoid damaging the compressor further. A technician will need to inspect the wiring, refrigerant valves, and the compressor itself to determine the root cause.

Diagnostic procedure

The full OUTDOOR_YELLOW_FLICKER_GREEN_FLICKER procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check compressor wire connections, service valve, EEV motor
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of OUTDOOR_YELLOW_FLICKER_GREEN_FLICKER

Ranked by how often they cause this code
  1. 1Loose or faulty compressor wire connections
  2. 2Closed or partially closed service valve
  3. 3EEV motor failure
  4. 4Failed or seized compressor
  5. 5Inverter control board fault

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Questions people ask about OUTDOOR_YELLOW_FLICKER_GREEN_FLICKER

What does OUTDOOR_YELLOW_FLICKER_GREEN_FLICKER mean on a Samsung air conditioner?
This error code indicates a compressor rotation error detected by the outdoor unit's control board. The alternating yellow and green LED flicker pattern is Samsung's visual signal that the compressor is not starting or rotating correctly. The system shuts down automatically to protect the compressor from further damage. A technician should check compressor wiring, service valves, and the EEV motor as initial diagnostic steps.
Is it safe to keep running my Samsung air conditioner with this error?
No. The unit has already shut itself down upon detecting the compressor rotation error, and attempting to force it to restart repeatedly without resolving the underlying cause can cause additional damage to the compressor or inverter board. Leave the unit off and contact a qualified technician before resuming operation.
Will resetting my Samsung air conditioner clear the OUTDOOR_YELLOW_FLICKER_GREEN_FLICKER error?
A power reset may temporarily clear the error and allow the unit to attempt a restart, but if the underlying cause such as a faulty EEV motor, closed service valve, or damaged compressor winding is still present, the error will return quickly. Resetting without diagnosis does not fix the problem and may delay needed repairs. The fault should be properly diagnosed and corrected before returning the unit to service.
Can I fix the OUTDOOR_YELLOW_FLICKER_GREEN_FLICKER error myself?
Some causes of this error, such as a closed service valve or a visibly loose wire connection at the compressor terminals, can be identified by a knowledgeable homeowner. However, diagnosing EEV motor faults, inverter board output, or compressor winding failures requires specialized tools and training. Because this error involves high-voltage inverter components and refrigerant systems, professional service is strongly recommended for most repair steps.
How much does it cost to repair a compressor rotation error on a Samsung air conditioner?
Repair costs vary widely depending on the root cause. Correcting wiring or opening a service valve may cost only a service call fee, typically in the range of $75 to $150. Replacing an EEV motor or inverter board can range from $200 to $600 or more including parts and labor. A failed compressor is the most expensive scenario, with replacement costs ranging from $800 to $2,000 or higher depending on the unit size and refrigerant type.

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