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Error code reference

Maytag Dryer Error Code F2

Exhaust thermistor open

Maytag codesMaytag dryer codes

Exhaust thermistor open — temperature drops below 18°F (>50 kΩ) for 1 minute in Run mode, or immediately in Factory Diagnostic Mode.

First step from the service manual

Check exhaust thermistor resistance (should be less than 50 kΩ); replace if open.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What F2 means on a Maytag dryer

The F2 error code on a Maytag dryer indicates that the exhaust thermistor has gone open circuit. The exhaust thermistor is a negative temperature coefficient (NTC) resistor that continuously monitors the temperature of the air leaving the drum. Under normal operating conditions, the thermistor's resistance decreases as temperature rises. When the control detects a resistance reading above 50 kΩ, it interprets this as a temperature below 18°F, which signals a failed or disconnected sensor rather than an actual environmental condition during a drying cycle.

The fault triggers in two scenarios: during Run mode, the control requires the out-of-range reading to persist for at least one continuous minute before setting the F2 code; in Factory Diagnostic Mode, the fault is flagged immediately upon detecting the open condition. This distinction matters for diagnosis because an intermittent connection problem may only present the code during normal operation, while a fully open thermistor will fail instantly under diagnostic testing.

The most direct cause is a thermistor that has failed internally, producing infinite or near-infinite resistance across its terminals. However, wiring issues between the thermistor and the control board can produce identical symptoms. Corroded connector pins, a broken wire in the harness, or a loose connector at either the thermistor or the board can all interrupt the signal and push the measured resistance above the 50 kΩ threshold. Starting diagnosis at the thermistor itself with a multimeter is the fastest way to distinguish a failed sensor from a wiring fault.

Source: manufacturer service documentation.

Common causes of F2

  1. 01

    Failed exhaust thermistor

    Part replacement

    The thermistor itself has failed open internally, meaning it no longer conducts electricity. Measuring resistance across its terminals with a multimeter will show a reading above 50 kΩ or no continuity at all.

  2. 02

    Loose or disconnected thermistor connector

    Wiring / connection

    The wiring connector at the thermistor body can vibrate loose over time, breaking the circuit. Inspect the connector at the sensor and reseat it firmly, then check if the code returns.

  3. 03

    Broken or damaged wiring harness

    Wiring / connection

    A wire in the harness running between the thermistor and the control board may be broken internally or chafed through, creating an open circuit. Visually inspect the harness for pinch points, burns, or obvious breaks.

  4. 04

    Corroded connector terminals

    Wiring / connection

    Moisture or lint buildup can cause corrosion on the connector pins at either end of the thermistor circuit, increasing resistance beyond the 50 kΩ threshold. Check both the thermistor connector and the control board connector for green or white oxidation on the terminals.

  5. 05

    Faulty control board

    Part replacement

    If the thermistor and all wiring check out within spec, the control board's thermistor input circuit may have failed. This is the least common cause and should only be suspected after all other components test correctly.

See the test procedure for each cause

Frequently asked questions about F2

What does F2 mean on a Maytag dryer?
The F2 code means the control board has detected an open circuit in the exhaust thermistor. The thermistor is a temperature sensor located in the exhaust path, and when its resistance climbs above 50 kΩ, the board treats this as a sensor failure. The dryer will halt the cycle until the fault is resolved.
Can I fix the F2 error myself, or do I need a technician?
A knowledgeable DIYer can often resolve this code by checking and reseating the thermistor wiring connector, which requires no special tools. If the thermistor itself has failed, replacing it is a straightforward repair that involves disconnecting the harness and swapping in a new sensor. If the wiring harness or control board is at fault, the repair becomes more involved and may warrant professional service.
Is it safe to keep using my dryer with an F2 code showing?
You should not continue running the dryer while the F2 code is active. Without a functioning exhaust thermistor, the control board cannot monitor exhaust temperatures accurately, which removes an important safety safeguard against overheating. Address the fault before resuming use.
Will resetting the dryer clear the F2 error code?
A power reset may temporarily clear the code display, but the fault will return as soon as the dryer enters Run mode and the control re-detects the open thermistor circuit. Because the trigger condition in Run mode requires only one continuous minute of the out-of-range reading, the code will reappear quickly if the underlying problem is not corrected.
How much does it cost to repair an F2 error on a Maytag dryer?
If the thermistor itself is the cause, parts typically range from $15 to $40 depending on the specific model, making it one of the more affordable dryer repairs. If a technician is needed for diagnosis and installation, total costs including labor generally fall in the range of $100 to $200. A failed control board would be the most expensive outcome, with parts and labor potentially ranging from $200 to $400 or more.

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