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Error code reference

Samsung Washer Error Code 1BC2

Switch error (main relay error) on the upper washer

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What the 1BC2 error code actually means

Your Samsung washer is showing an error because one of its internal switches is stuck and not working correctly. This prevents the machine from operating safely. The issue could be as simple as a jammed or damaged button on the control panel, or it may involve an internal electrical component that needs repair.

Diagnostic procedure

The full 1BC2 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check for deformation of control panel or button.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of 1BC2

Ranked by how often they cause this code
  1. 1Jammed or deformed control panel button
  2. 2Stuck or failed main relay switch
  3. 3Damaged or loose wiring harness
  4. 4Liquid or debris intrusion into the switch assembly
  5. 5Failed control board relay circuit

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Questions people ask about 1BC2

What does 1BC2 mean on a Samsung washer?
The 1BC2 code on a Samsung washer indicates a switch error involving the main relay on the upper washer unit. It means the control system has detected a switch that is jammed or stuck and cannot transition properly between states. This prevents the washer from operating normally. The fault can originate at the control panel, the switch assembly, the wiring, or the control board.
Is it safe to keep using my washer when the 1BC2 code appears?
It is not recommended to continue using the washer while the 1BC2 error is active. A stuck or failed relay switch can prevent the machine from properly controlling power to its motor and other components, which could lead to further damage. Stop using the appliance and diagnose the fault before resuming normal operation.
Will resetting my Samsung washer clear the 1BC2 error code?
A reset may temporarily clear the 1BC2 error code, but it will return if the underlying switch or relay fault has not been resolved. To reset, unplug the washer for several minutes and then restore power. If the code reappears immediately or after the next cycle, the physical or electrical cause must be diagnosed and repaired to permanently clear the fault.
Can I fix the 1BC2 error myself?
Some causes of the 1BC2 error are accessible to a knowledgeable DIYer. Start by inspecting the control panel for any buttons that appear stuck, warped, or physically damaged. You can also check wiring connectors for looseness or visible damage. However, if the fault lies in the main relay switch or the control board itself, replacement of those components is typically required and may be better handled by a qualified technician.
How much does it cost to repair a Samsung washer with the 1BC2 error?
Repair costs vary depending on the root cause. If only a control panel button or wiring connector is at fault, costs could range from minimal to around $50 to $150 for parts and labor. If the main relay switch assembly or control board needs replacement, costs can range from $150 to $400 or more depending on parts pricing and service rates in your area.

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