Amana Washer Error Code oF

The oF code means the control board detected either an open circuit from the thermistor or a temperature reading at or below 30°F near the thermistor. The thermistor is a small temperature sensor inside the washer. When the control cannot get a valid temperature signal, it stops the cycle and displays oF. Start by checking whether the washer is in a space that gets extremely cold, then inspect the wiring between the thermistor and the control board before replacing any parts.

The washer will not complete a cycle while the oF code is active because the control board has halted operation due to the invalid temperature reading. Running a wash cycle without a functioning thermistor could result in incorrect water temperature being used without the machine detecting it, which may damage fabrics or produce poor wash results. Do not bypass the code; address the root cause before resuming normal use.

Yes. The oF code is triggered when the thermistor reports a temperature at or below 30°F, which can happen if the washer is located in an unheated garage or basement during winter. In this case, no component has failed. Bring the ambient temperature in the installation space above 30°F, then clear the code by unplugging the washer for one minute and restoring power. If the code does not return in a warmer environment, the installation location was the cause.

Disconnect power to the washer, then remove the front panel to access the thermistor and its wiring. Check every connector and wire between the thermistor and the control board for loose connections, backed-out pins, or visible breaks. Reconnect or repair any wiring issues found. If the wiring is intact, test the thermistor with a multimeter set to resistance mode. An open reading (OL) confirms the thermistor has failed and needs to be replaced. If both the wiring and thermistor test good, the control board itself may be at fault.

If the fix is a loose connector or a wiring repair, the cost is minimal and typically a DIY job with no parts required. A replacement thermistor generally costs between $15 and $40 for the part, and replacing it is a moderate DIY repair after removing the front panel. If a technician is needed, expect a service call fee of $75 to $150 plus parts and labor, making the total repair cost anywhere from $100 to $250 depending on your area and whether the control board is also involved.