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Error code reference

Samsung Air Conditioner Error Code E267

Top sensor of compressor 2 is detached.

Samsung codesSamsung air conditioner codes

Top sensor of compressor 2 is detached.

First step from the service manual

Check sensor attachment.

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

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What E267 means on a Samsung air conditioner

Error code E267 on a Samsung air conditioner indicates that the top sensor of compressor 2 has become detached or is no longer making proper contact with its mounting point. This sensor monitors temperature at the top of the second compressor in systems that use multiple compressors, typically found in larger multi-zone or commercial-grade Samsung units. The control board uses this sensor's data to protect the compressor from overheating and to regulate refrigerant flow and system capacity. When the sensor loses contact or the circuit reads an open condition, the system flags E267 to prevent potential compressor damage.

The most common cause of this fault is physical detachment of the sensor from its clip or bracket on the compressor housing. Vibration during normal operation can loosen the sensor over time, causing intermittent or complete loss of contact. Wiring issues such as a damaged harness, corroded connector pins, or a broken wire between the sensor and the control board can produce the same fault condition. The sensor itself can also fail internally, though physical detachment is the first condition to rule out per the diagnostic sequence.

Diagnosing E267 begins with a visual inspection of the sensor mounting position on the top of compressor 2. Technicians should check that the sensor is properly seated in its bracket, that the wiring harness is intact, and that the connector is fully engaged at both the sensor and the board. Resistance testing of the sensor can confirm whether the component itself has failed or whether the issue is purely mechanical.

Source: manufacturer service documentation.

Common causes of E267

  1. 01

    Sensor physically detached from compressor

    Wiring / connection

    Vibration from normal operation can cause the sensor clip or bracket to loosen over time, allowing the sensor to separate from the top of compressor 2. A visual inspection will typically reveal the sensor hanging free or sitting away from its mounting point.

  2. 02

    Loose or disconnected wiring connector

    Wiring / connection

    The connector between the sensor wire and the main harness may have worked loose, creating an open circuit that the control board reads as a detached sensor. Check both the sensor-end connector and the board-side connector for proper seating.

  3. 03

    Damaged or broken sensor wiring harness

    Part replacement

    The wire running from the compressor top sensor to the control board may have been pinched, chafed, or broken, interrupting the signal. Inspect the full length of the harness for visible damage, especially near sharp edges or high-heat areas.

  4. 04

    Failed temperature sensor

    Part replacement

    The sensor itself may have developed an internal open circuit due to heat stress or age, producing a reading that mimics physical detachment. Resistance testing across the sensor terminals can confirm a faulty component.

  5. 05

    Corroded connector pins

    Wiring / connection

    Moisture intrusion into the sensor connector can cause pin corrosion that increases resistance or breaks continuity, triggering E267 even when the sensor is physically in place. Inspect the connector under good lighting for green or white oxidation on the terminals.

See the test procedure for each cause

Frequently asked questions about E267

What does E267 mean on a Samsung air conditioner?
E267 indicates that the top temperature sensor on compressor 2 is detached or has lost its electrical connection. The control board cannot read a valid temperature from that sensor location, so the system generates this fault to protect the compressor from unmonitored operation. This code is most commonly found on Samsung multi-compressor systems such as larger multi-zone units.
Can I fix E267 myself or do I need a technician?
If the sensor has simply vibrated loose from its mounting bracket, a knowledgeable DIYer can reseat it after safely powering down the unit. However, if the wiring harness is damaged or the sensor has failed, a qualified technician with the right tools for resistance testing and component replacement will be needed. Working inside an air conditioner involves high-voltage components, so caution is essential.
Is it safe to run my Samsung air conditioner with error E267 active?
Running the system with E267 active is not recommended. The top sensor on compressor 2 provides critical temperature data that helps prevent the compressor from overheating. Without reliable readings from that sensor, the control system cannot properly protect the compressor, which could lead to premature failure of an expensive component.
How much does it cost to repair error code E267 on a Samsung air conditioner?
If the fix is simply reseating a detached sensor, the cost may be limited to a service call fee, typically in the range of $75 to $150. If the sensor itself needs replacement, parts and labor combined generally range from $100 to $300 depending on the unit model and local labor rates. A damaged wiring harness can add to that estimate depending on the extent of the repair.
Will resetting my Samsung air conditioner clear the E267 error code?
A power reset may temporarily clear the error code, but if the underlying cause such as a detached sensor or broken wire has not been corrected, E267 will return once the system runs and checks that sensor circuit again. A reset should only be performed after the sensor attachment and wiring have been inspected and confirmed to be in good condition.

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