mypros+
Error code reference

Samsung Air Conditioner Error Code YEL_FLICKER_RED_FLICKER_GRN_FLICKER

PFC overcurrent error

Avg. service call
$285
National average. Trip fee plus diagnostic plus labor. Before parts.
MyPros+ 3-day pass
$9.95
Same diagnostic steps, on your phone. Start now.
You keep in your pocket
~$275
Even before you buy the part.
Skip the service call. Fix it yourself.
Full procedure unlocks instantly.
Get Started

What the YEL_FLICKER_RED_FLICKER_GRN_FLICKER error code actually means

This error means the outdoor unit of your Samsung air conditioner has detected a problem with its internal power regulation circuit, which protects the system from electrical damage. The unit has shut itself down as a safety measure. A technician will need to inspect and most likely replace the outdoor control board to restore operation.

Diagnostic procedure

The full YEL_FLICKER_RED_FLICKER_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
Replace outdoor control board
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock YEL_FLICKER_RED_FLICKER_GRN_FLICKER procedure $9.95

Or subscribe: $29/month for unlimited access to all codes plus Max AI diagnostics.

Most common causes of YEL_FLICKER_RED_FLICKER_GRN_FLICKER

Ranked by how often they cause this code
  1. 1Failed outdoor control board (PFC stage)
  2. 2Shorted or degraded PFC power module
  3. 3DC bus capacitor failure
  4. 4Incoming power supply anomaly
  5. 5Wiring fault in outdoor unit power circuit

Most DIYers save hundreds by diagnosing before ordering parts.

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass

Questions people ask about YEL_FLICKER_RED_FLICKER_GRN_FLICKER

What does YEL_FLICKER_RED_FLICKER_GRN_FLICKER mean on a Samsung air conditioner?
This code indicates a PFC (Power Factor Correction) overcurrent error in the outdoor unit. The PFC circuit, which regulates incoming power and feeds the inverter drive, has detected current beyond its safe operating limit and shut the system down. The outdoor control board is the primary component associated with this fault.
Will resetting the air conditioner clear the YEL_FLICKER_RED_FLICKER_GRN_FLICKER error?
A power reset may temporarily clear the fault and allow the unit to restart, but if the underlying PFC circuit fault is present, the error will return, often quickly. Resetting without addressing the root cause can risk further damage to the outdoor unit components. Persistent recurrence after reset confirms a hardware fault requiring board replacement.
How much does it cost to repair the YEL_FLICKER_RED_FLICKER_GRN_FLICKER error on a Samsung air conditioner?
Repair costs vary depending on the specific outdoor unit model and labor rates in your area. Outdoor control board replacement typically falls in the range of $200 to $600 or more for parts and labor combined. Obtaining a quote from a certified Samsung service technician before proceeding is advisable, as board pricing varies significantly by model.
Can I fix the YEL_FLICKER_RED_FLICKER_GRN_FLICKER error myself?
This error involves high-voltage circuitry inside the outdoor unit, including components that can retain dangerous charge even after power is disconnected. The recommended first step is replacement of the outdoor control board, which is a task best handled by a qualified HVAC technician. DIY attempts on inverter drive and PFC circuits carry serious electrical safety risks.
Is it safe to run my Samsung air conditioner when it shows this error?
No. The unit has shut itself down specifically to prevent electrical damage, and attempting to force continued operation is not safe. The PFC overcurrent condition could damage additional components in the outdoor unit if the fault is not resolved before returning the system to service.

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass