Bosch Washer Error Code NTC short circuit

This error means the temperature sensor inside the washer has developed a short circuit, which the machine detects during its internal test programme. The NTC thermistor is responsible for monitoring water temperature so the washer can heat water accurately. A short circuit causes the sensor to send an invalid signal to the control board. The washer flags this fault to prevent incorrect temperature control during wash cycles.

It is not recommended to continue running the washer with an active NTC short circuit fault. Without a functioning temperature sensor, the machine cannot accurately control water heating, which could result in water that is far hotter or colder than the selected programme requires. Running cycles in this condition may also mask other developing faults.

A basic reset may temporarily clear the error from the display, but the fault will return as soon as the washer runs the test programme again if the underlying problem has not been fixed. The short circuit condition in the sensor or wiring must be physically corrected before the error will clear permanently. Resetting without repair is not a solution.

A knowledgeable DIYer can diagnose and fix this fault with basic tools. Start by running the test programme to confirm the error, then use a multimeter to test resistance across the NTC thermistor terminals. If the sensor reads near zero ohms at room temperature, it needs to be replaced. Also inspect the wiring harness for visible damage before ordering parts.

If only the NTC thermistor needs replacement, parts typically cost in the range of $15 to $50 depending on the model. Professional labor to diagnose and replace the sensor generally adds $80 to $150. If the control board is ultimately responsible for the fault, repair costs will be significantly higher, often ranging from $150 to $350 or more for parts and labor.