Bosch Washing Machine Error Code E26 — Pressure Sensor Fault
What this means
Error E26 means the pressure sensor (also called a pressure switch or transducer) is sending incorrect or no readings to the control board. This sensor monitors the water level inside the drum. A clogged pressure hose, faulty sensor, or wiring issue can trigger this error.
Alternate codes: F26
Step-by-step fix
4 stepsInspect the pressure hose
Check the small rubber hose that connects the bottom of the tub to the pressure sensor. Ensure it is not kinked, cracked, or clogged with debris.
Blow gently through the hose to check for blockages.
Check wiring connections
Inspect the wiring harness at the pressure sensor and control board end. Reseat any loose connectors.
Test the pressure sensor
Use a multimeter to test the sensor. Consult your model's service manual for the expected resistance values.
Analog pressure sensors typically output a variable voltage based on water level.
Replace the sensor if faulty
If the hose is clear and wiring is secure but the error persists, replace the pressure sensor.
When to call a professional
If you are not comfortable testing electronic sensors or the control board needs diagnosis.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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