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F25

Maytag Dryer

Severity: Moderate

What Does This Error Mean?

F25 means your Maytag dryer's inlet thermistor is reading below its minimum expected resistance — the sensor looks like an open circuit to the control board. An open circuit reading usually means the thermistor has physically failed or its wiring harness has broken. The dryer stops operating because it cannot confirm a safe inlet temperature.

Affected Models

  • Maytag MEDB835DW
  • Maytag MEDC215EW
  • Maytag MED5500FW
  • Maytag Bravos Dryer

Common Causes

  • Inlet thermistor has failed in an open-circuit state — no resistance signal reaches the control board
  • Wiring harness connector to the inlet thermistor is loose, broken, or corroded
  • Wire has broken inside the harness between the thermistor and the control board
  • Thermistor terminals are corroded, preventing a reliable electrical connection
  • Control board port receiving the thermistor signal has failed

How to Fix It

  1. Unplug the dryer for 5 minutes and then restart a test cycle to confirm F25 is consistent.

    A power reset rules out a transient board fault. If F25 returns immediately, the thermistor or its wiring has genuinely failed.

  2. Check the wiring harness connector at the inlet thermistor for looseness or visible corrosion.

    The thermistor is located near the drum inlet. Its two-wire connector can work loose from vibration. Disconnect, inspect the pins, and reconnect firmly.

  3. If the connector looks intact, have a technician test the thermistor resistance with a multimeter.

    A working thermistor has a predictable resistance at room temperature. An open-circuit reading (very high or infinite resistance) confirms the sensor has failed.

  4. Replace the thermistor if it tests as open. It is a low-cost part and straightforward to swap once the dryer panel is removed.

    Match the part number on the failed thermistor when ordering a replacement — thermistors are model-specific.

When to Call a Professional

F25 almost always requires replacing the inlet thermistor or the wiring harness segment connecting it to the control board. A technician can use a multimeter to confirm which component is at fault before ordering parts.

Frequently Asked Questions

Can a loose connector cause F25?

Yes. A partially disconnected harness connector creates an intermittent or permanent open circuit, which the control board reads as F25. Reconnecting the loose connector often resolves the error without any parts replacement.

What is the difference between F25 and F24?

F24 means the inlet thermistor is reading above its maximum range — too high. F25 means it is reading below its minimum range — essentially no signal (open circuit). F25 is more often a wiring fault; F24 is more often an actual overtemperature condition.

How much does a thermistor replacement cost?

An inlet thermistor for a Maytag dryer typically costs $15 to $40 for the part. With technician labor, the total repair usually runs $80 to $150.