Prodigy Ice Maker Error Code b

The 'b' error code on a Prodigy ice maker indicates a bin-full condition. Specifically, the ice curtain (also called the bin door or deflector) remained in the open position after a harvest cycle completed. Under normal operation, harvested ice falls from the evaporator, passes through the curtain, and drops into the storage bin below. When the bin reaches capacity, ice accumulates to a level where it physically holds the curtain open rather than allowing it to swing back to its closed resting position. The control board detects that the curtain switch has not returned to its closed state following harvest and triggers the 'b' code to pause production.

The curtain and its associated switch form a simple but critical feedback loop for the ice maker. When ice fills the bin high enough to contact the curtain and keep it deflected upward or outward, the switch signals the control board that no more ice can be accepted. This is a protective measure to prevent ice from jamming the machine or spilling out of the bin. The condition is by design in most cases, but it can also appear incorrectly if the curtain is physically obstructed, bent, or misaligned, or if the curtain switch itself has failed and is falsely reporting an open state.

Common scenarios that trigger this code include a genuinely full bin that simply needs to be emptied, ice that has bridged or clumped near the curtain area preventing it from closing even after some ice is removed, a misaligned or damaged curtain that catches on the bin housing, or a faulty curtain switch that remains in the open circuit state regardless of curtain position. Distinguishing between a legitimate full-bin condition and a mechanical or electrical fault is the first priority when diagnosing this code.