mypros+
Error code reference

Bosch Refrigerator Error Code 1-4-1

Icemaker

Bosch codesBosch refrigerator codes

Icemaker: Ice tray heater or icemaker electronic is faulty.

First step from the service manual

Heater and electronics are not replaceable; replace the ice maker.

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 1-4-1.

  • 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 1-4-1 means on a Bosch refrigerator

Error code 1-4-1 on a Bosch refrigerator points to a fault within the icemaker assembly, specifically related to the ice tray heater or the icemaker's internal electronic control. The ice tray heater is responsible for warming the tray slightly during the harvest cycle, allowing formed ice cubes to release cleanly into the storage bin. When this heater fails or the icemaker's onboard electronics malfunction, the control system detects an out-of-range condition and triggers this code to prevent further failed harvest attempts.

The icemaker unit in these Bosch refrigerators integrates the tray heater and electronic control components into a single, non-serviceable assembly. This means the heater element and the circuit board governing harvest timing, thermistor input, and motor operation cannot be accessed or replaced individually. A failure in either the heater circuit or the internal electronics produces the same 1-4-1 fault, and Bosch's diagnostic guidance treats both failure modes identically.

Common root causes include heater element burnout from repeated thermal cycling, internal electronic component failure due to age or moisture intrusion, or a wiring harness connection issue between the refrigerator's main control board and the icemaker module. Because individual components are not sold separately for this assembly, the correct resolution is replacement of the complete icemaker unit.

Source: manufacturer service documentation.

Common causes of 1-4-1

  1. 01

    Failed ice tray heater element

    Part replacement

    The heater element inside the icemaker tray burns out over time due to repeated heating and cooling cycles. This prevents ice from releasing during the harvest cycle and triggers the 1-4-1 fault.

  2. 02

    Internal icemaker electronic control failure

    Part replacement

    The onboard electronics within the icemaker module can fail due to age, power fluctuations, or moisture exposure. Since the control board is integrated into the assembly, it cannot be replaced independently.

  3. 03

    Wiring harness connection fault

    Wiring / connection

    A loose, corroded, or damaged connector between the refrigerator's main control board and the icemaker module can cause the 1-4-1 code. Inspect the harness and connectors at both ends before replacing the icemaker unit.

  4. 04

    Moisture or ice intrusion into the icemaker module

    Part replacement

    Water or ice buildup inside the icemaker housing can short internal components or disrupt electrical connections. This is more common when door seals are compromised or defrost drainage is blocked.

See the test procedure for each cause

Frequently asked questions about 1-4-1

What does 1-4-1 mean on a Bosch refrigerator?
Error code 1-4-1 indicates a fault with either the ice tray heater or the internal electronics of the icemaker assembly. The refrigerator's control system has detected that one of these components is not operating correctly. Because the heater and electronics are integrated into a single non-serviceable unit, the entire icemaker assembly must be replaced to resolve this code.
Can I fix the 1-4-1 error myself on a Bosch refrigerator?
The first step is to check that the wiring harness connecting the icemaker to the main control board is secure and free of corrosion, since a loose connection can trigger this fault. If the wiring is intact, the icemaker assembly itself must be replaced, as the heater and electronic components inside it are not individually serviceable. This replacement is a task many experienced DIYers can perform, though some comfort with appliance disassembly is helpful.
Will resetting my Bosch refrigerator clear the 1-4-1 error code?
A reset may temporarily clear the code, but it will return if the underlying fault in the icemaker heater or electronics is still present. Resetting does not repair a failed heater element or a malfunctioning internal circuit board. The code will continue to reappear until the icemaker assembly is replaced or the wiring fault is corrected.
Is it safe to keep using my Bosch refrigerator while the 1-4-1 code is active?
The refrigerator's cooling and food preservation functions are generally not affected by this icemaker fault, so continued use for food storage is typically safe. However, the icemaker will not produce ice reliably while this code is active. It is a good idea to address the fault promptly to avoid any secondary issues such as ice buildup within the icemaker compartment.
How much does it cost to fix a Bosch refrigerator showing error code 1-4-1?
Repair costs will vary depending on the specific Bosch model and whether you hire a technician or perform the replacement yourself. The icemaker assembly part typically falls in the range of $80 to $200 or more depending on the model. If a professional technician handles the replacement, labor charges will add to that cost, generally bringing the total to somewhere between $150 and $350 or higher depending on your location and service provider.

Related Bosch refrigerator codes

All Bosch refrigerator codes
View all 209 Bosch refrigerator codes

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

Get Started

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