Bosch Dryer Error Code E:1302

E:1302 signals an NTC temperature sensor fault specifically within the Refresher cycle circuit. It is the 4-digit version of error code E:85 and refers to the same underlying issue. The control board is receiving a resistance reading from the NTC thermistor that falls outside the acceptable range, so it stops the Refresher cycle to prevent incorrect operation.

A reset may temporarily clear the code from the display, but it will return as soon as the dryer attempts to run the Refresher cycle again if the underlying fault is still present. The NTC sensor or its wiring must be inspected and repaired to permanently resolve the error.

If only the NTC thermistor needs replacement, parts typically range from a modest cost for the sensor itself, and the repair is often straightforward for a technician. If the control board is at fault, parts and labor costs increase considerably. Overall repair costs can range from roughly 50 to 300 dollars or more depending on which component has failed and local labor rates.

Start by checking the NTC sensor's resistance with a multimeter and comparing it to the expected value for the operating temperature. Inspect the wiring harness and connector for any loose connections, damaged pins, or broken wires. If the sensor reads open or shorted, replacing the NTC thermistor is the likely repair. If the sensor and wiring both test correctly, the control board may need to be evaluated.

The error specifically affects the Refresher cycle function. Standard drying cycles may still operate, but running the machine with an unresolved sensor fault is not recommended without confirming the fault is isolated to the Refresher circuit. If you are unsure, discontinue use until the fault is diagnosed to avoid potential temperature control issues.