Electrolux Washer Error Code E73

E73 indicates a fault in the NTC temperature sensor located on the drying duct. The control board has detected a voltage from this sensor that is out of the expected range, pointing to either a short circuit or an open circuit condition. This could be caused by a defective sensor, damaged wiring, or a faulty main circuit board. The drying cycle will not operate while this fault is active.

Resetting the washer by unplugging it for a few minutes may temporarily clear the code, but if the underlying fault in the NTC sensor or wiring is still present, E73 will return when the drying cycle is attempted again. A reset is not a fix and the root cause must be properly diagnosed and repaired for the code to stay cleared.

If the drying NTC sensor needs replacement, parts and labor typically range from around $75 to $200 depending on your location and the service provider. Wiring repairs or connector replacements are generally on the lower end of that range. A main circuit board replacement is significantly more expensive, often ranging from $200 to $500 or more including labor.

A knowledgeable DIYer can start by inspecting the wiring harness and connectors leading to the drying duct NTC sensor, as loose or disconnected wires are sometimes the cause and require no replacement parts. If the sensor itself has failed, it can be replaced with the correct part. However, if the main circuit board is at fault, repair becomes more complex and a qualified technician is recommended.

The washing functions of the machine may still operate normally while E73 is active, since this fault is specific to the drying duct temperature sensor. However, you should avoid using the drying cycle, as the control board cannot properly monitor drying temperatures without a functioning NTC sensor, which poses a potential overheating risk.