mypros+
Error code reference

LG Washer Error Code 1bC2

Switch error (Upper washer)

Avg. service call
$285
National average. Trip fee plus diagnostic plus labor. Before parts.
MyPros+ 3-day pass
$9.95
Same diagnostic steps, on your phone. Start now.
You keep in your pocket
~$275
Even before you buy the part.
Skip the service call. Fix it yourself.
Full procedure unlocks instantly.
Get Started

What the 1bC2 error code actually means

Your LG washer is detecting that one of the buttons on the upper washer's control panel is stuck or jammed down and not releasing properly. The machine stops working because it thinks a button is being held down continuously, which could cause it to behave in unintended ways. Checking each button to make sure it presses and springs back freely is the first step toward resolving the issue.

Diagnostic procedure

The full 1bC2 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check if a button is jammed or stuck.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock 1bC2 procedure $9.95

Or subscribe: $29/month for unlimited access to all codes plus Max AI diagnostics.

Most common causes of 1bC2

Ranked by how often they cause this code
  1. 1Physically stuck or jammed button
  2. 2Debris or detergent residue around buttons
  3. 3Moisture or liquid intrusion into control panel
  4. 4Faulty switch or button mechanism
  5. 5Damaged or defective control panel assembly

Most DIYers save hundreds by diagnosing before ordering parts.

Get Started

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

Questions people ask about 1bC2

What does 1bC2 mean on a LG washer?
The 1bC2 error code on an LG washer signals a switch error in the upper washer unit, meaning the control board has detected a button that appears to be jammed or stuck in the pressed position. The machine stops operation when this condition is detected to prevent unintended commands from being executed. Inspecting each button on the upper washer's control panel to confirm they all press and release freely is the recommended first diagnostic step.
Is it safe to keep using my LG washer when the 1bC2 error appears?
It is not advisable to continue operating the washer while this error is active. A stuck switch can cause the machine to receive unintended commands, which may lead to erratic behavior during a wash cycle. Resolving the fault before resuming use is the safest course of action.
Will resetting my LG washer clear the 1bC2 error code?
A reset may temporarily clear the error code from the display, but if the underlying cause, such as a physically stuck button, has not been corrected, the 1bC2 code will return as soon as the washer's control board detects the fault condition again. Address the stuck or jammed button before attempting a reset to ensure the code does not immediately reappear.
How do I fix the 1bC2 error on my LG washer?
Start by pressing each button on the upper washer's control panel one at a time to check whether any button feels sticky or fails to return to its raised position after being pressed. Clean around all button edges to remove any detergent residue or debris that may be causing a button to bind. If a button is mechanically broken and will not release properly, the switch or control panel assembly will need to be replaced.
How much does it cost to repair a 1bC2 error on an LG washer?
If the issue is simply a stuck button caused by debris or residue, the repair may cost nothing beyond a few minutes of cleaning time. If a switch component or the full control panel assembly requires replacement, parts and labor costs can range from roughly $75 to $250 or more depending on your location and the specific parts needed.

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

Get Started

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