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Error code reference

Bosch Refrigerator Error Code 1-1-2

Ice maker

Ice maker: Ice production cycle is interrupted (ice tray rotation failure).

First step from the service manual

Start icemaker self test and observe if ice tray rotates; check for mechanical blockage.

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

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What 1-1-2 means on a Bosch refrigerator

Error code 1-1-2 on a Bosch refrigerator indicates a fault within the ice maker module, specifically that the ice production cycle has been interrupted due to a failure of the ice tray rotation mechanism. The ice maker relies on a motor-driven tray that rotates to eject finished ice cubes into the storage bin. When the control system detects that the tray has not completed its rotation within the expected timeframe, it logs this code and halts the ice-making cycle to prevent damage to the mechanism.

The most common cause of this fault is a mechanical obstruction preventing the tray from rotating freely. Ice bridging, a clump of ice that spans across multiple cubes and freezes to the tray walls, is a frequent culprit. The drive motor or the gear assembly connecting the motor to the tray can also fail, leaving the tray stationary even when the motor receives a signal to rotate. In some cases, the tray itself may be warped or cracked, creating friction points that prevent full rotation.

Diagnosing this code begins with running the ice maker self-test cycle, which commands the tray to rotate through a full ejection sequence. During the test, observe whether the tray moves at all, moves partially, or remains completely stationary. This distinction helps narrow the cause to either a mechanical blockage, a motor fault, or a control board issue. Clearing any ice buildup and resetting the module may resolve the code if the root cause was a temporary obstruction.

Source: manufacturer service documentation.

Common causes of 1-1-2

  1. 01

    Ice blockage or bridging in the tray

    Wiring / connection

    Ice can fuse together or freeze to the tray walls, physically preventing rotation. Inspect the tray for clumped or stuck ice and clear any buildup manually after unplugging the refrigerator.

  2. 02

    Ice maker drive motor failure

    Part replacement

    The motor responsible for rotating the ice tray may have burned out or seized. During the self-test, a completely stationary tray despite power being present points to motor failure.

  3. 03

    Worn or stripped gear assembly

    Part replacement

    The gear train connecting the drive motor to the tray can strip over time, causing the motor to spin without actually turning the tray. This often produces an audible grinding or clicking sound during the cycle.

  4. 04

    Warped or damaged ice tray

    Part replacement

    A cracked or deformed tray creates friction or catches on the housing during rotation. Visually inspect the tray for cracks, warping, or any point where it contacts the ice maker frame.

  5. 05

    Ice maker control module fault

    Part replacement

    If the tray, motor, and gears all appear intact and unobstructed, the control module that signals the rotation cycle may be sending incorrect commands or failing to read rotation feedback. This is the least common cause and is typically diagnosed after all mechanical components are ruled out.

See the test procedure for each cause

Frequently asked questions about 1-1-2

What does 1-1-2 mean on a Bosch refrigerator?
Error code 1-1-2 means the ice maker's ice production cycle was interrupted because the ice tray failed to complete its rotation. The ice maker uses a motor-driven tray to eject finished cubes, and when that rotation does not occur as expected, the system logs this fault and pauses ice production. The error can stem from a physical ice blockage, a failed drive motor, stripped gears, or a damaged tray.
How do I fix error code 1-1-2 on my Bosch refrigerator?
Start by running the ice maker self-test and watching whether the tray rotates at all. If the tray is blocked by clumped ice, unplug the refrigerator, clear the obstruction, and restart the ice maker. If the tray does not move despite no visible blockage, the drive motor or gear assembly likely needs replacement. A qualified technician should handle motor or module replacement.
Will resetting the ice maker clear the 1-1-2 error code?
A reset may temporarily clear the code, but it will return if the underlying cause is not resolved. If a chunk of ice was causing the blockage and has since melted or been removed, a reset could fully resolve the issue. For mechanical failures like a bad motor or stripped gears, the code will reappear as soon as the next ice cycle runs.
Is error code 1-1-2 on a Bosch refrigerator a safety concern?
This code does not represent a safety hazard. It is isolated to the ice maker system and does not affect the refrigerator or freezer compartment temperatures. You can continue using the refrigerator normally while the ice maker issue is being diagnosed or repaired. The ice maker simply will not produce ice until the fault is corrected.
How much does it cost to repair a Bosch refrigerator showing error code 1-1-2?
Repair costs vary depending on the failed component. If only a physical ice blockage needs to be cleared, there may be no parts cost at all. Replacing a drive motor or gear assembly typically ranges from $75 to $200 in parts, plus labor if a technician is involved. A full ice maker module replacement can run higher, generally in the range of $150 to $350 or more depending on the specific model.

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