Bosch Refrigerator Error Code 3-1-8

Error code 3-1-8 on a Bosch refrigerator indicates that the ice maker's hopper flap solenoid is faulty. The hopper flap solenoid controls a small gate that releases ice into the dispenser chute. When the control board detects an electrical or mechanical problem with that solenoid, it logs this code and ice dispensing may stop working.

A reset may temporarily clear the code from the display, but it will return if the underlying hardware fault is not corrected. The solenoid or ice maker assembly must be repaired or replaced to resolve the fault permanently. Resetting without addressing the root cause is not a lasting solution.

Repair costs depend on whether only the solenoid needs replacement or the entire ice maker assembly must be swapped out. Solenoid replacement is generally the less expensive option, with parts and labor typically ranging from $75 to $200. If a full ice maker assembly replacement is needed, total costs including labor can range from $200 to $450 or more depending on your location and service provider.

The first step is to test the hopper flap solenoid directly by checking its resistance and confirming there is no open circuit or short. If the solenoid is faulty, replacing it should clear the error. If the solenoid tests as electrically sound but the problem persists, replacing the entire ice maker assembly is the next recommended step.

This fault is not a safety hazard in the traditional sense. It does not involve high-voltage components, refrigerant leaks, or fire risk. However, leaving it unaddressed will result in continued failure of the ice dispenser, and in some cases ice may back up within the unit.