Bosch Washer Error Code Er:06

Er:06 means the control board has detected a short circuit in the NTC thermistor circuit, the component that monitors water temperature. The fault can originate from a failed thermistor or from the wire harness connecting it to the control board. The washer will not operate normally until the short is identified and corrected.

It is not recommended to continue using the washer while Er:06 is active. A shorted temperature sensor means the machine cannot accurately monitor or control water temperature, which could result in incorrect cycle performance or potential overheating. The washer should be diagnosed and repaired before resuming normal use.

Repair costs vary depending on what has failed. Replacing an NTC thermistor is generally a lower-cost repair, with parts typically ranging from $15 to $50 and professional labor adding $75 to $150 depending on your area. If the wire harness requires repair or replacement, costs can be higher. Diagnosing the fault accurately with test P16 before ordering parts helps avoid unnecessary expenses.

Start by running test program P16 to confirm the fault is active in the NTC circuit. Then disconnect the NTC thermistor and measure its resistance with a multimeter. If it reads near zero ohms, the thermistor needs replacement. If the thermistor tests correctly in isolation, trace the wire harness for signs of damage, chafing, or shorted conductors and repair or replace the affected section.

A reset may temporarily clear the error display, but the code will return as soon as the control board re-evaluates the NTC circuit and detects the short again. Because the underlying cause is a hardware fault in the sensor or wiring, resetting the machine does not resolve the problem and is not a substitute for proper diagnosis and repair.