Frigidaire Washer Error Code E31 — Pressure Sensor Communication Error
What this means
Error code E31 indicates the pressure sensor (also called the pressure switch or pressure transducer) is not sending signals to the electronic control board. The washer cannot determine the water level in the tub, preventing it from filling or draining properly.
Step-by-step fix
4 stepsCheck the pressure hose
Locate the pressure sensor at the top of the washer. Inspect the small rubber hose running from the tub to the sensor for kinks, cracks, or disconnections.
A kinked or disconnected hose is the most common cause of this error.
Clear the pressure hose
Remove the hose from the sensor and blow gently through it to clear any debris or water buildup.
If water comes out when you remove the hose, the air trap at the tub end may be clogged.
Test the pressure sensor
With the hose reconnected, use a multimeter to check the sensor's output signal. Gently blow into the hose — the sensor reading should change.
No change in reading indicates a faulty sensor.
Replace the pressure sensor
If the sensor is faulty, disconnect the wiring and hose, remove the mounting screw, and install the new sensor.
Ensure the hose is firmly seated on both the new sensor and the tub connection.
When to call a professional
If the pressure sensor and hose both test fine but the error persists, the control board may need replacement.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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