mypros+
Error code reference

Samsung Air Conditioner Error Code TIMER_TURBO_FLICKER

Abnormal communication error between indoor and outdoor unit

Samsung codesSamsung air conditioner codes

Abnormal communication error between indoor and outdoor unit

First step from the service manual

Check PCB and cable between indoor and outdoor unit at N(1), 1, 2 terminals

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for TIMER_TURBO_FLICKER.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

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

What TIMER_TURBO_FLICKER means on a Samsung air conditioner

The TIMER_TURBO_FLICKER error on a Samsung air conditioner signals an abnormal communication failure between the indoor and outdoor units. This communication link carries control signals, sensor data, and operational commands that allow both units to operate in coordination. When this signal is interrupted or corrupted, the system cannot function properly and triggers this fault code, typically indicated by the Timer and Turbo indicator lights flickering simultaneously on the indoor unit display.

The communication between the indoor and outdoor units runs through a wiring harness connected at three specific terminals: N(1), 1, and 2. These terminals carry the data signal line along with power references that make the communication circuit functional. Faults at these terminals, or anywhere along the cable between the two units, can break or distort the signal enough to trigger the error. Common physical causes include loose terminal connections, damaged or pinched wiring, corrosion at connection points, or cable runs that have been compromised by pests or environmental exposure.

The PCB (printed circuit board) on either the indoor or outdoor unit can also be the source of this fault. If the communication circuitry on either board has failed due to power surge damage, moisture intrusion, or component failure, the signal will not transmit or receive correctly even if the wiring itself is intact. Diagnosis requires checking the physical condition of the communication cable first, then verifying signal continuity and terminal integrity at N(1), 1, and 2 before moving on to PCB-level evaluation.

Source: manufacturer service documentation.

Common causes of TIMER_TURBO_FLICKER

  1. 01

    Loose or disconnected communication wiring at terminals

    Wiring / connection

    The communication cable connections at terminals N(1), 1, and 2 can loosen over time due to vibration or improper installation. Inspect all three terminal connections on both the indoor and outdoor units for secure seating and tightness.

  2. 02

    Damaged communication cable between units

    Part replacement

    The wiring running between the indoor and outdoor units can be cut, pinched, chewed by pests, or degraded by UV or moisture exposure. A visual inspection of the full cable run and a continuity test will identify breaks or shorts.

  3. 03

    Corroded terminal connections

    Wiring / connection

    Moisture ingress at the terminal block can cause oxidation and corrosion at the N(1), 1, and 2 connection points, increasing resistance and disrupting the communication signal. Look for green or white residue on terminals and clean or replace as needed.

  4. 04

    Faulty indoor or outdoor unit PCB

    Part replacement

    If the communication circuitry on either control board has failed due to a power surge, moisture, or component wear, the board will not properly send or receive signals even with intact wiring. PCB failure is suspected after wiring and terminals have been confirmed good.

  5. 05

    Electrical interference or power irregularity

    Wiring / connection

    Voltage fluctuations or nearby electrical interference can disrupt the low-voltage communication signal on the data line. Check that the unit is receiving stable power and that the communication wiring is not routed too close to high-voltage lines.

See the test procedure for each cause

Frequently asked questions about TIMER_TURBO_FLICKER

What does TIMER_TURBO_FLICKER mean on a Samsung air conditioner?
TIMER_TURBO_FLICKER indicates an abnormal communication error between the indoor and outdoor units of the Samsung air conditioner system. The two units rely on a wired signal connection to exchange data and control commands, and this code appears when that connection fails. The Timer and Turbo indicator lights flicker simultaneously to alert users to the fault. The issue originates in the communication cable or the PCBs at either unit.
How do I fix the TIMER_TURBO_FLICKER error on my Samsung air conditioner?
Start by inspecting the communication cable and terminal connections at N(1), 1, and 2 on both the indoor and outdoor units. Check for loose connections, visible wire damage, or corrosion and address any issues found. If the wiring is intact and properly connected, the next step is evaluating the PCB on each unit for signs of damage or failure. PCB replacement typically requires a qualified technician.
Is it safe to keep running my Samsung air conditioner when the TIMER_TURBO_FLICKER error is showing?
The system will generally shut itself down when this communication error is active, preventing normal operation. You should not attempt to bypass or force operation while this fault is present, as the lack of communication between units can lead to uncontrolled operation or component damage. Address the underlying wiring or PCB issue before resuming use.
Will resetting my Samsung air conditioner clear the TIMER_TURBO_FLICKER error?
A power reset may temporarily clear the error code, but if the underlying communication fault is still present, the error will return shortly after the unit attempts to restart. Resetting without repairing the root cause is not a lasting solution. The wiring, terminal connections, and PCBs need to be inspected and repaired to resolve the fault permanently.
How much does it cost to repair the TIMER_TURBO_FLICKER error on a Samsung air conditioner?
Repair costs vary depending on the cause. If the issue is limited to a loose connection or minor wiring repair, costs may be relatively low, typically in the range of $75 to $200 for a service call and labor. If the communication cable needs full replacement, costs may rise to the $150 to $400 range depending on the installation. PCB replacement is the most expensive scenario, often falling between $250 and $650 or more for parts and labor depending on the unit model and which board requires replacement.

Related Samsung air conditioner codes

All Samsung air conditioner codes
View all 572 Samsung air conditioner codes

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

Get Started

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