Hotpoint F18

Hotpoint error code F18 indicates: Hotpoint ActiveCare & GentlePower Ultima Washing Machine: Excessive foam overdosing warning F18; pressure transducer senses suds accumulation preventing drain pump priming..

The primary root cause for Hotpoint code F18 is: On Hotpoint washing machines: High-foaming non-HE detergent used, massive overdose of liquid soap, or partially restricted drain hose trap..

To resolve error code F18: Allow suds to settle naturally for 30 minutes. Run cold rinse cycle without detergent. Clean drain filter and adjust future detergent dosing. Turn cycle knob to 12 o'clock, hold Cancel/Reset for 3 seconds, and power cycle mains switch for 60 seconds.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Hotpoint code F18 persists, the physical component causing On Hotpoint washing machines: High-foaming non-HE detergent used, massive overdose of liquid soap, or partially restricted drain hose trap. 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.