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Error code reference

Samsung Dryer Error Code bC2

Button Stuck Error

Samsung codesSamsung dryer codes

Button Stuck Error – a key other than Start Button is jammed.

First step from the service manual

Check Sub PBA for stuck/jammed key.

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

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What bC2 means on a Samsung dryer

The bC2 error code on a Samsung dryer indicates a Button Stuck Error, specifically triggered when a key other than the Start button is detected as jammed or continuously depressed by the control system. The dryer's control board continuously monitors input signals from the user interface panel. When any non-Start button sends a persistent signal beyond an expected duration, the control board interprets this as a stuck key condition and halts normal operation to prevent unintended cycle execution.

The primary component involved is the Sub PBA (Printed Board Assembly), which is the secondary control board that handles button input signals from the front panel interface. This board receives and transmits switch state data to the main control board. A fault at this level can originate from physical debris or moisture trapped beneath a button, a mechanically deformed or warped button cap, a failed tactile switch underneath the key, or damaged traces and solder joints on the Sub PBA itself.

Common triggers include detergent residue or lint buildup around control panel buttons, which can cause a button to physically stick in the depressed position. In some cases, the Sub PBA's internal switch contacts may short or weld closed due to electrical stress, producing a false stuck-button signal even when the button moves freely. Technicians should begin diagnostics by inspecting the Sub PBA directly, pressing each button individually to check for mechanical binding, and then testing switch continuity if physical inspection does not identify the fault.

Source: manufacturer service documentation.

Common causes of bC2

  1. 01

    Debris or Residue Around Button

    Wiring / connection

    Lint, detergent residue, or moisture can accumulate around the edges of a button and physically hold it in the depressed position. Inspect each button on the control panel for sticky residue or visible buildup and clean carefully with a dry or slightly damp cloth.

  2. 02

    Mechanically Stuck or Warped Button Cap

    Part replacement

    A button cap can warp from heat exposure or impact, causing it to bind against the control panel housing. Press each non-Start button individually to check for one that does not spring back freely or feels stiffer than the others.

  3. 03

    Failed Tactile Switch on Sub PBA

    Part replacement

    The tactile switch beneath a button on the Sub PBA can fail with its contacts shorted in the closed position, sending a continuous signal to the control board even when the button cap moves freely. This requires continuity testing of the individual switch and typically means replacing the Sub PBA.

  4. 04

    Damaged Traces or Solder Joints on Sub PBA

    Part replacement

    Cracked solder joints or damaged copper traces on the Sub PBA can create a false short that mimics a stuck button signal. Visual inspection under magnification may reveal the damage, but board-level repair or Sub PBA replacement is usually required.

  5. 05

    Moisture Intrusion into Control Panel

    Wiring / connection

    Spilled liquids or high ambient humidity can cause electrical leakage between button contacts on the Sub PBA, triggering a false stuck-button reading. Allow the panel to dry completely and inspect the Sub PBA for corrosion or water damage marks.

See the test procedure for each cause

Frequently asked questions about bC2

What does bC2 mean on a Samsung dryer?
The bC2 error code on a Samsung dryer means a Button Stuck Error has been detected on a key other than the Start button. The control system has identified that one of the panel buttons is sending a continuous input signal, suggesting it is physically jammed or that the underlying switch on the Sub PBA has failed. The dryer will not operate normally until the fault is resolved.
Can I fix the bC2 error myself without a technician?
In many cases, yes. Start by inspecting all control panel buttons for visible debris, residue, or sticking, and clean the panel carefully. If a button feels mechanically stuck, cleaning around it may resolve the issue without any parts. If the Sub PBA's internal switch has failed, replacing the board is typically required, which is a more involved repair but can be done by a confident DIYer familiar with appliance disassembly.
Is it safe to keep using my dryer when bC2 is showing?
No, you should not continue running the dryer while the bC2 error is active. The stuck-button condition can cause unintended operation or prevent the dryer from responding correctly to user input. Resolve the fault before resuming use to avoid any risk of the dryer behaving unpredictably during a cycle.
Will resetting the dryer clear the bC2 error code?
A power reset by unplugging the dryer for a few minutes may temporarily clear the bC2 error, but it will return if the underlying cause is not corrected. If the button is physically stuck or the Sub PBA switch has failed, the error will reappear as soon as the dryer powers back on and detects the continuous input signal again.
How much does it cost to repair a Samsung dryer bC2 error?
If only cleaning is needed, there is no parts cost involved. If the Sub PBA requires replacement, parts typically range from around 40 to 120 dollars depending on the specific model, with professional labor adding another 80 to 150 dollars in most markets. Diagnosing whether the board or just a button cap is at fault before ordering parts can help avoid unnecessary expenses.

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