Kenmore Dryer Error Code E71

E71 indicates the control board has detected an open circuit in the Outlet Control Thermistor circuit. This thermistor monitors exhaust air temperature, and the dryer is receiving no valid resistance signal from it. The fault points to either a failed thermistor, a break in the wiring, or a connection problem. At room temperature, the thermistor should measure between 4.9K Ohm and 6.2K Ohm.

It is not recommended to continue using the dryer while E71 is active. The Outlet Control Thermistor is part of the heat regulation system, and without a valid signal from it, the dryer cannot properly monitor exhaust temperatures. Running the dryer in this condition could result in overheating or inadequate drying performance.

A reset may temporarily clear the E71 code, but it will return as soon as the control board checks the thermistor circuit again and detects the open circuit. The underlying fault, whether a failed thermistor, broken wire, or bad connection, must be physically repaired before the error will clear permanently. Resetting without repairing does not fix the problem.

Yes, this repair is within reach for a technician or a DIYer comfortable using a multimeter. The first step is to check the resistance of the Outlet Control Thermistor and inspect the wiring for any open circuit or loose connections. If the thermistor reads outside the 4.9K to 6.2K Ohm range or shows infinite resistance, replacing the thermistor is the likely fix. Always unplug the dryer before accessing internal components.

If the thermistor itself needs to be replaced, part costs typically range from around $15 to $50 depending on the specific model. If a professional technician is needed, total repair costs including labor can range from $100 to $200. Repairing a wiring harness or connector issue yourself would cost very little beyond basic tools.