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Error code reference

Bosch Refrigerator Error Code 3-3-8

Ice maker

Bosch codesBosch refrigerator codes

Ice maker: Hopper flap solenoid faulty.

First step from the service manual

Check solenoid; if problematic replace; if OK replace icemaker.

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

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What 3-3-8 means on a Bosch refrigerator

Error code 3-3-8 on a Bosch refrigerator indicates a fault in the ice maker's hopper flap solenoid. The hopper flap is a small door or gate within the ice maker assembly that controls the release of ice from the storage hopper into the dispenser chute. A solenoid actuates this flap electrically, receiving a signal from the control board when a dispense request is made. When the refrigerator detects that the solenoid is not responding correctly, either due to an open circuit, short circuit, or mechanical failure, it logs this error code and may disable ice dispensing to prevent further damage.

The most direct cause of a 3-3-8 code is a faulty hopper flap solenoid itself, which can fail due to a burned-out coil, broken wiring harness connections, or a mechanically seized flap that puts excessive load on the solenoid. Corrosion at the solenoid connector pins is another common contributor, particularly in environments with high humidity around the ice maker compartment. The diagnostic approach prioritizes solenoid testing first: if the solenoid measures out of spec or shows no continuity, replacement of the solenoid is the correct repair. If the solenoid checks out electrically and mechanically, the fault likely lies within the ice maker module itself, which would then need to be replaced as an assembly.

Source: manufacturer service documentation.

Common causes of 3-3-8

  1. 01

    Failed hopper flap solenoid coil

    Part replacement

    The solenoid coil can burn out or develop an open circuit over time, preventing it from actuating the flap. This is the most likely cause and is confirmed by testing the solenoid for continuity or proper resistance.

  2. 02

    Damaged or corroded solenoid wiring harness

    Wiring / connection

    The wiring connector leading to the solenoid can corrode, fray, or pull loose, interrupting the electrical signal. Inspect the connector pins and wire insulation for visible damage or oxidation.

  3. 03

    Mechanically seized hopper flap

    Wiring / connection

    Ice buildup or physical debris can jam the hopper flap, placing excessive load on the solenoid and causing it to overheat or fail. Check the flap for free movement after clearing any ice obstruction.

  4. 04

    Faulty ice maker module

    Part replacement

    If the solenoid and its wiring test within acceptable parameters, the internal control circuitry of the ice maker assembly itself may be defective. In this case, the entire ice maker unit requires replacement.

See the test procedure for each cause

Frequently asked questions about 3-3-8

What does 3-3-8 mean on a Bosch refrigerator?
Error code 3-3-8 on a Bosch refrigerator indicates a fault with the ice maker hopper flap solenoid. The hopper flap solenoid controls the small door that releases ice into the dispenser chute. The refrigerator has detected that this solenoid is not functioning correctly, which can prevent ice from dispensing. A technician will need to test the solenoid and either replace it or replace the ice maker assembly.
Can I fix error code 3-3-8 myself?
A knowledgeable DIYer can attempt this repair by first inspecting the solenoid wiring harness for loose or corroded connections, which sometimes resolves the issue without parts. If wiring looks intact, testing the solenoid with a multimeter for continuity is the next step. Solenoid or ice maker assembly replacement requires basic appliance repair skills and sourcing the correct compatible parts for your specific Bosch model.
Is error code 3-3-8 a safety hazard?
Error code 3-3-8 is not a safety hazard. It is an ice maker component fault that affects ice dispensing functionality but does not impact food preservation or create any risk of fire or electrical danger. You can continue using the refrigerator normally while scheduling a repair.
How much does it cost to repair error code 3-3-8 on a Bosch refrigerator?
Repair costs depend on whether only the solenoid or the full ice maker assembly needs replacement. A solenoid replacement is typically the lower-cost option, with parts and labor often ranging from $80 to $180. If the entire ice maker module requires replacement, costs can range from $200 to $450 or more depending on your model and local labor rates.
Will resetting my Bosch refrigerator clear error code 3-3-8?
A reset may temporarily clear the code from the display, but it will return if the underlying solenoid fault is not repaired. Resetting does not fix the mechanical or electrical problem causing the error. The proper resolution is to diagnose and replace the faulty solenoid or ice maker assembly as indicated by testing.

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