GE Dishwasher Error Code Heated Dry LED flashing

The Heated Dry LED flashing on a GE dishwasher signals an overfill fault. This fault is triggered when the undersump overfill microswitch closes, indicating that water has accumulated in the overfill collector area beneath the main sump. This microswitch is a safety device designed to detect water that has escaped from the normal wash circuit and pooled in the collection area below. When this switch closes, the control board interprets the condition as a potential overflow risk and halts normal operation.

This fault code has a second trigger path as well. The watchdog circuit in the control board will also generate this fault if it detects an open circuit in the drain pump loop. The control monitors continuity through the drain circuit, and an expected resistance of approximately 35 ohms between the DRAIN terminal and the N terminal confirms the pump circuit is intact. If the circuit reads open, the control treats this as a fault condition equivalent to the overfill microswitch closing. This dual-trigger behavior means the same flashing LED can point to either a water intrusion problem or an electrical fault in the drain circuit.

Diagnosing this code requires checking both possible sources. Start by inspecting and emptying the overfill collector if water is present, then investigate why water reached that area, since it often points to a leaking door gasket, wash arm seal, or sump seal. If the collector is dry, shift focus to the drain pump circuit: measure resistance between the DRAIN and N terminals and inspect all wiring connections for corrosion, breaks, or loose pins that could create an open circuit.