GE EF

GE error code EF indicates: GE Profile / Cafe UltraFresh Microban Built-in Dishwasher: Flowmeter pulse overflow anomaly EF; impulse count exceeds maximum safety tank volume during filling phase..

The primary root cause for GE code EF is: On GE dishwashers featuring Cafe / Profile UltraFresh Microban wash filtration, dedicated deep clean silverware jets, and SmartHQ telemetry: Siphoning water leaking continuously out of drain hose during fill, or defective pressure switch failing to register water depth..

To resolve error code EF: Check drain hose standpipe height (must be between 65 cm and 100 cm). Clear pressure switch dome in sump. Check pressure transducer contacts. Press and hold Start button for 3 seconds to cancel cycle, wait 2 minutes for drain cycle to conclude, then power cycle.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if GE code EF persists, the physical component causing On GE dishwashers featuring Cafe / Profile UltraFresh Microban wash filtration, dedicated deep clean silverware jets, and SmartHQ telemetry: Siphoning water leaking continuously out of drain hose during fill, or defective pressure switch failing to register water depth. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test Mechanical Pressure Switch Contacts / Inductive Frequency Sensor across Across switch spade contacts with harness unplugged; electronic output: 40Hz–50Hz frequency signal. Expected nominal reading is Mechanical: Continuity 0.0Ω–0.2Ω (Empty: 11-12, Full: 11-14). Electronic: 20Ω–45Ω coil resistance.. Tolerance: Mechanical switch contacts must transition cleanly on gentle breath pressure. Coil ~22Ω ±5%..

Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.