Bosch Washer Error Code 26

Error code 26 on a Bosch washer indicates a fault with the analog pressure sensor, which monitors the water level inside the drum. The sensor is producing a voltage that is out of the expected range, which the control board interprets as a sensor error. This can be caused by a broken sensor, a blocked or disconnected hose leading to the sensor, or a wiring fault. The washer will not operate normally until the issue is resolved.

A power reset, turning the machine off and then back on, can clear error 26 if the code was triggered by a temporary electrical glitch rather than a true hardware failure. If the error returns after the reset, the underlying cause such as a blocked hose or faulty sensor must be addressed. A reset alone will not fix a physically damaged sensor or a clogged hose.

If the repair only requires clearing a blocked hose or reseating a connector, there may be no parts cost at all. If the pressure sensor itself needs to be replaced, parts typically range from $20 to $60 depending on the model, with professional labor adding $80 to $150 or more depending on your location. Getting the hose and wiring checked first can help avoid unnecessary parts replacement.

Yes, some causes of error 26 are accessible for DIY repair. Start by resetting the machine using the power button, then inspect the pressure sensor hose for kinks, blockages, or loose connections. If the hose is clear, check the wiring harness connectors at the pressure sensor for corrosion or loose pins. Replacing the pressure sensor itself is a moderately involved repair but is manageable for someone comfortable working inside appliances.

No, it is not advisable to continue running the washer while error code 26 is active. Because the pressure sensor controls water level detection, a faulty or unresponsive sensor could lead to the machine overfilling with water. It is best to resolve the fault before running additional cycles to avoid potential water damage.