Bosch Refrigerator Error Code 1-1-4
Ice maker
Ice maker: 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.
Get the full diagnostic procedure for 1-1-4.
- 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
$29/month · Cancel anytime · Or $9.95 3-day pass
What 1-1-4 means on a Bosch refrigerator
Error code 1-1-4 on a Bosch refrigerator points to a fault within the ice maker unit, specifically identifying either the ice tray heater or the ice maker's internal electronics as the failed component. The ice tray heater is responsible for briefly warming the tray during harvest cycles, allowing formed ice cubes to release cleanly into the storage bin. When this heater fails, the harvest cycle cannot complete properly, and the control system logs a fault. Similarly, if the ice maker's onboard electronic control circuit fails, the unit loses the ability to manage timing, motor operation, temperature sensing, or heater activation.
Because the ice tray heater and the electronic control board are both integrated directly into the ice maker assembly, neither component is available as a standalone replacement part. Bosch does not service these sub-components individually. The entire ice maker unit must be replaced as a single assembly when code 1-1-4 appears. Attempting to diagnose or repair individual internal components is not a supported repair path.
This fault can develop due to heater element burnout, internal wiring failure within the assembly, or electronic circuit board failure caused by age, moisture exposure, or power surges. In all cases, the diagnostic and repair path is the same: confirm the error code is active, rule out any wiring harness issues at the ice maker connector, and proceed with full ice maker replacement.
Source: manufacturer service documentation.
Common causes of 1-1-4
- 01
Ice tray heater failure
Part replacementThe internal heater element that warms the tray during ice harvest has burned out or shorted. This is the most frequent cause of 1-1-4 and prevents ice cubes from releasing properly.
- 02
Ice maker electronic control board failure
Part replacementThe onboard circuit board inside the ice maker assembly has failed, disrupting timing, motor control, or heater activation signals. This can occur due to age, power surges, or moisture intrusion.
- 03
Moisture or frost damage to internal components
Part replacementExcessive frost buildup or water intrusion into the ice maker housing can short internal circuits or degrade the heater element over time. Inspect the ice maker compartment for signs of heavy frost or water pooling.
- 04
Wiring harness fault at the ice maker connector
Wiring / connectionA loose, corroded, or damaged connector between the refrigerator wiring harness and the ice maker can mimic an internal component failure. Inspect and reseat the connector before replacing the assembly.
Frequently asked questions about 1-1-4
What does 1-1-4 mean on a Bosch refrigerator?
Can I fix error code 1-1-4 myself without replacing the ice maker?
Will resetting my Bosch refrigerator clear the 1-1-4 error code?
Is it safe to continue using my refrigerator with a 1-1-4 error code?
How much does it cost to fix a Bosch refrigerator with error code 1-1-4?
78,000+ service manuals · 160,000+ error codes · 55+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass