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Amana Refrigerator FF — Freezer Compartment Thermistor Fault

Amana Refrigerator · Error code FF

What FF Means

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

Symptoms

  • FF code
  • Freezer too warm or too cold
  • Compressor runs continuously or not at all
  • Frost buildup

Common Causes

1
Failed freezer thermistor

Sensor bead damaged or open.

2
Frost-damaged harness

Repeated freeze/thaw cracked insulation.

3
Main control board ADC fault

Rare — board cannot read sensor.

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.

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.

Common replacement Freezer thermistor View on 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 F1E2 F1E2 — Main Control to UI Communication Loss

All Amana codes → All refrigerator codes →

Verified against manufacturer documentation: amana.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.