mypros+
Error code reference

Samsung Air Conditioner Error Code 06

EEPROM error on indoor unit PCB.

Samsung codesSamsung air conditioner codes

EEPROM error on indoor unit PCB.

First step from the service manual

Check indoor unit control board; replace PCB if necessary.

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 06.

  • 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 06 means on a Samsung air conditioner

Error code 06 on a Samsung air conditioner indicates an EEPROM (Electrically Erasable Programmable Read-Only Memory) fault on the indoor unit's printed circuit board (PCB). The EEPROM is a small memory chip embedded on the control board that stores critical configuration data, including unit model information, capacity settings, and operational parameters. When the main control board cannot read from or write to this chip correctly, it triggers the 06 fault code and halts normal operation to prevent the unit from running with corrupted or missing configuration data.

The most common causes of this fault involve either a failed EEPROM chip itself or a broader failure of the indoor unit PCB. Voltage fluctuations, power surges, and moisture ingress can corrupt the EEPROM's stored data or damage the chip permanently. In some cases, the fault is not with the chip itself but with solder joints or circuit traces on the PCB that connect the EEPROM to the main processor, causing intermittent or total communication loss.

Diagnosing this error begins with a thorough inspection of the indoor unit control board. Look for signs of burn marks, corrosion, moisture damage, or visibly damaged components. If the board shows physical damage or if the fault persists after power cycling, replacement of the indoor PCB is the standard corrective action. Attempting to re-flash or replace only the EEPROM chip is generally outside the scope of field repair and the entire control board is typically replaced as an assembly.

Source: manufacturer service documentation.

Common causes of 06

  1. 01

    Failed indoor unit PCB

    Part replacement

    The control board itself has failed due to age, power surge, or internal component failure. This is the most common root cause and typically requires full board replacement.

  2. 02

    Corrupted EEPROM data

    Part replacement

    A power surge or voltage spike may have corrupted the data stored on the EEPROM chip without visibly damaging the board. The chip can no longer provide valid configuration information to the processor.

  3. 03

    Moisture or corrosion on the PCB

    Part replacement

    Condensation or water intrusion near the indoor unit can corrode circuit traces and solder joints around the EEPROM, causing communication failures. Inspect the board closely for discoloration or rust.

  4. 04

    Loose or damaged wiring to the control board

    Wiring / connection

    Connectors supplying power or signal to the indoor PCB may be loose, corroded, or damaged. Check all wiring harness connections at the board before assuming the board itself has failed.

See the test procedure for each cause

Frequently asked questions about 06

What does 06 mean on a Samsung air conditioner?
Error code 06 on a Samsung air conditioner signals an EEPROM error on the indoor unit control board. The EEPROM is a memory chip that stores the unit's configuration and operating parameters. When this chip fails or its data becomes corrupted, the system cannot function correctly and displays this fault code. Resolving it typically requires inspecting and replacing the indoor unit PCB.
Can I fix error code 06 on my Samsung air conditioner myself?
Fixing error code 06 requires access to the indoor unit control board, which involves removing panels and working near electrical components. A knowledgeable DIYer can inspect wiring connections and check for visible board damage, but actual board replacement should only be done by someone comfortable with appliance electronics. If you are not experienced with PCB-level repairs, it is safest to contact a qualified HVAC technician.
Will resetting my Samsung air conditioner clear the 06 error code?
A power reset may temporarily clear the code if the EEPROM fault was caused by a transient power issue, but the error will typically return if the underlying hardware problem is not resolved. If the EEPROM chip or control board has sustained actual damage, no amount of resetting will permanently clear the fault. A reset is worth trying as a first step, but do not rely on it as a fix.
Is it safe to run my Samsung air conditioner while error code 06 is active?
Error code 06 generally prevents the unit from operating normally, as the system will not run without valid configuration data from the EEPROM. Attempting to force operation under this fault is not recommended, as the unit may behave unpredictably without its correct settings. Leave the unit off until the control board has been inspected and the fault resolved.
How much does it cost to fix error code 06 on a Samsung air conditioner?
The cost to repair error code 06 depends primarily on whether the indoor unit PCB needs to be replaced. Control board replacement parts can range from around $80 to $300 or more depending on the specific model, with labor adding to the total cost. If only wiring or a connection is found to be at fault, the repair cost would be considerably lower. Getting a diagnosis from a certified technician before purchasing parts is advisable.

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