Amana · Refrigerator Serious

FF — Freezer Compartment Thermistor Fault

The freezer thermistor is reading out of range. The control cannot regulate freezer temperature reliably.

Keep using it?
Limited use only
DIY difficulty
Moderate
Verified against
amana.com ↗

How to fix it

  1. Empty freezer and locate the thermistor on the rear evaporator panel.
  2. Remove and measure resistance cold (~30-40 kΩ near 0°F is typical).
  3. Inspect harness for cracks or moisture.
  4. Replace the thermistor; reassemble and monitor temps for 24 hours.

Why it happens

Typical signs: FF code · Freezer too warm or too cold · Compressor runs continuously or not at all · Frost buildup

  • Failed freezer thermistor Sensor bead damaged or open.
  • Frost-damaged harness Repeated freeze/thaw cracked insulation.
  • Main control board ADC fault Rare — board cannot read sensor.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Freezer thermistor Common replacement
    Amazon →

More Amana refrigerator codes

5Y EF 5Y EF — Evaporator Fan Fault CE CE — Communication Error CF CF — Condenser Fan Fault dE dE — Defrost System Fault F1E1 F1E1 — Main Control Board Fault F2E1 F2E1 — Stuck Key on User Interface

All Amana codes → All refrigerator codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: amana.com.