Bosch Refrigerator Error Code 3-2-4

Error code 3-2-4 on a Bosch refrigerator indicates that the ice tray heater inside the ice maker is faulty. This heater is responsible for warming the ice mold so that formed cubes can be released during the harvest cycle. When the control board detects an out-of-range signal from the heater circuit, it logs this code and halts normal ice making. Because the heater is not replaceable on its own, the full ice maker assembly typically needs to be replaced.

You can check the wiring harness connector at the ice maker for any obvious corrosion or looseness, since a poor connection can sometimes trigger this fault. Beyond that, the ice tray heater is not a separately replaceable component, so there is no way to repair the heater element itself. If the connector and wiring look intact and the fault persists, replacing the complete ice maker assembly is the only repair path.

Since the fault requires replacing the entire ice maker assembly, costs typically include both the part and labor. Ice maker assemblies for Bosch refrigerators generally range from around 100 to 300 dollars depending on the model, and professional installation labor can add 80 to 200 dollars on top of that. A service call diagnostic fee may also apply if you hire a technician to confirm the fault before ordering parts.

Switching the appliance off and back on is the recommended first step and may clear the code if the fault was caused by a temporary glitch. However, if the 3-2-4 code returns after the power cycle, the ice tray heater has genuinely failed and the error will not clear until the ice maker assembly is replaced.

Yes, the refrigerator's cooling and food preservation functions are not affected by this error code. The 3-2-4 fault is isolated to the ice maker circuit, so the appliance remains safe to use for storing food. You will simply not receive ice from the ice maker until the assembly is repaired or replaced.