Amana AF

Amana error code AF indicates: Amana NED Automatic Dryness Control & 240V Element Tumble Dryer: Air flow restriction warning code AF; control detects high differential temperature between heater and exhaust duct..

The primary root cause for Amana code AF is: On Amana dryers (Amana 'Just the basics done right' rugged mechanical design and Vertical Modular Washer (VMW) platform): Lint screen completely blanketed with lint, bent metal exhaust ducting, or bird nest/debris blocking exterior wall termination hood..

To resolve error code AF: Clean lint screen before every cycle. Wash screen with warm water and soap to remove wax. Inspect outside vent hood flapper while dryer is running to confirm exhaust air velocity. Disconnect power cord for 60 seconds. Inspect 91°C thermal fuse and restore power to reset electromechanical timer and circuit.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Amana code AF persists, the physical component causing On Amana dryers (Amana 'Just the basics done right' rugged mechanical design and Vertical Modular Washer (VMW) platform): Lint screen completely blanketed with lint, bent metal exhaust ducting, or bird nest/debris blocking exterior wall termination hood. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test Drain Pump Motor Stator Coils across Across pump motor spade terminals (L-N unclipped). Expected nominal reading is 160Ω–220Ω (Sync 230V) / 20Ω–45Ω (3-Phase BLDC). Tolerance: ±10% balance. Insulation resistance between coil and motor chassis must exceed 20MΩ..

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.