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Error code reference

Amana Washer Error Code 0f

Thermistor temperature out of range

Amana codesAmana washer codes

Thermistor temperature out of range — the control detected the temperature near the thermistor fell below 30°F.

First step from the service manual

Disconnect electric power and remove front panel; check for broken, loose or incorrect wiring between thermistor and control.

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

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What 0f means on a Amana washer

The 0f error code on an Amana washer indicates that the control board has detected a thermistor reading that has dropped below 30 degrees Fahrenheit. The thermistor is a temperature-sensing resistor located in the wash system that continuously reports water or ambient temperature data to the main control board. When the sensed temperature falls outside the acceptable operating range, specifically below that 30°F threshold, the control interprets this as an out-of-range condition and triggers the 0f fault to protect the machine and alert the user.

The most common root cause of this error is not actually an extreme temperature environment but rather a wiring or connection problem between the thermistor and the control board. Broken wires, loose terminal connections, or improperly routed wiring can cause the control to read an incorrect resistance value, which it then interprets as a temperature below the lower limit. Because resistance in a thermistor changes predictably with temperature, an open circuit or high-resistance connection can mimic a reading consistent with a sub-freezing condition.

The first diagnostic step involves disconnecting power to the washer and removing the front panel to visually inspect the wiring harness running from the thermistor to the control board. Technicians should look for broken conductors, corroded terminals, loose connector pins, or wiring that may have been routed incorrectly during a previous repair. If the wiring checks out, the thermistor itself should be tested for correct resistance output, and the control board should be evaluated if both the wiring and thermistor measure within specification.

Source: manufacturer service documentation.

Common causes of 0f

  1. 01

    Loose or disconnected wiring at the thermistor

    Wiring / connection

    A loose terminal or disconnected wire between the thermistor and the control board causes an incorrect resistance reading that the control interprets as a temperature below 30°F. Inspect the connector pins and harness at the thermistor plug for any that have backed out or lost contact.

  2. 02

    Broken wire in the thermistor harness

    Part replacement

    A broken conductor in the wiring harness can create an open circuit that produces an out-of-range temperature reading. Visually trace the harness from the thermistor to the control board and flex the wire while monitoring for intermittent continuity.

  3. 03

    Incorrect wiring routing or connection

    Wiring / connection

    Wiring that was routed or connected incorrectly, possibly after a prior repair, can cause the thermistor signal to be misread by the control board. Verify that all connectors are seated in the correct locations and that no wires are pinched or crossed.

  4. 04

    Failed thermistor

    Part replacement

    The thermistor itself may have failed, producing a resistance value outside the normal operating range. If the wiring checks out, the thermistor should be tested with a multimeter to confirm it is outputting a resistance value consistent with the actual ambient temperature.

  5. 05

    Faulty control board

    Part replacement

    If the wiring and thermistor both test within specification, the main control board may be misinterpreting the thermistor signal. A control board fault is the least likely cause and should only be considered after all wiring and sensor tests have been completed.

See the test procedure for each cause

Frequently asked questions about 0f

What does 0f mean on a Amana washer?
The 0f code means the control board detected a thermistor temperature reading below 30 degrees Fahrenheit, which is outside the acceptable range for normal operation. This fault is most often caused by a wiring problem between the thermistor and the control board rather than the machine actually being in a freezing environment. The washer stops operation and displays the code to alert you that the temperature sensor circuit needs attention.
Can I fix the 0f error code myself?
Some causes of the 0f error are accessible to a knowledgeable DIYer. After disconnecting power, removing the front panel and inspecting the thermistor wiring for loose, broken, or incorrectly connected wires is a reasonable first step. If the wiring appears intact, testing the thermistor with a multimeter requires basic electrical knowledge. Replacing the control board, if needed, is a more advanced repair that many technicians prefer to handle.
Is it safe to run my Amana washer with the 0f error code showing?
You should not continue running the washer while the 0f fault is active. The control board has flagged a sensor circuit problem, which means the machine cannot accurately monitor temperature conditions during the wash cycle. Running the washer in this state could result in improper cycle operation or further damage to components.
How much does it cost to repair the 0f error on an Amana washer?
Repair costs vary depending on the cause. If the issue is a loose wire or connector, the cost may only be a service call fee, typically in the range of $75 to $150. A replacement thermistor is generally an inexpensive part, often in the $15 to $50 range plus labor. A new control board is the most expensive possible outcome, with parts and labor potentially ranging from $150 to $350 or more.
Will resetting my Amana washer clear the 0f error code?
Disconnecting power to the washer for a few minutes may temporarily clear the 0f code, but the fault will return if the underlying wiring or component issue has not been corrected. A reset is useful for confirming whether the fault is intermittent, but it is not a repair. The thermistor circuit needs to be inspected and tested to resolve the error permanently.

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