Frigidaire Washer Error Code E72

E72 on a Frigidaire washer indicates that the electronic control board has detected a closed circuit or short in the NTC thermistor, which is the component responsible for monitoring water temperature. The fault can come from the thermistor itself, the wiring harness connecting it to the board, or the control board. The washer will not operate normally until the root cause is identified and corrected.

Start by measuring the NTC thermistor resistance with a multimeter at room temperature. It should read approximately 50K ohms at 25°C within a 5% tolerance. If the reading is out of range, replace the thermistor. If the thermistor tests good, inspect the faston connectors at the sensor and the J4 edge connector on the harness for corrosion or damage. If both pass inspection, the electronic control board will need to be replaced.

Repair costs vary depending on the failed component. A replacement NTC thermistor is typically an inexpensive part, often in the range of $10 to $40. Wiring repairs are usually low cost if no parts are needed. A replacement electronic control board is the most expensive scenario, generally ranging from $100 to $300 or more for the part alone, with additional labor costs if a technician is hired.

Resetting the washer by unplugging it for a few minutes may temporarily clear the E72 code, but the fault will return if the underlying problem is not repaired. A shorted thermistor or damaged wiring will continue to trigger the error each time the control board attempts to read the temperature sensor. Continuing to run the machine without resolving the fault is not recommended.

Operating the washer with an active E72 code is not advisable. The temperature sensor is a safety-critical component, and running cycles without reliable temperature monitoring could cause overheating of the water or damage to fabrics. It is best to diagnose and repair the fault before resuming normal use.