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Bosch Washer E26 / F26 / F27 Error Code

Water level (pressure) sensor fault. What it means, which models show it, and how to clear it, easiest fix first.

BoschAll Bosch washer codes

E26 / F26 / F27
May need a pro

The sensor that tells the control how much water is in the drum is not working properly, so the washer cannot judge when it has filled or emptied. Bosch says not to use the machine until it is fixed.

Compatible models

Bosch doesn't publish a model list for this code; it appears on Bosch washers with a digital display. Check your owner's manual.

Also shown as

Bosch's US site uses E26/F26 for the analog pressure sensor and F27 for a faulty pressure sensor on other models. Bosch models sold in the UK and Europe may use different codes, so check your manual.

Difficulty

Try the basic checks, but the usual fix is a technician's job.

Safety first: unplug the washer (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix Bosch E26 / F26 / F27

  1. Turn the washer off

    Turn the washer off and unplug it. If the floor around the outlet or cord is wet, switch off the washer's circuit breaker instead of touching the plug. Close the water tap.

  2. Do not keep running it

    Avoid restarting the washer to test it. Bosch says not to use it until the sensor problem is repaired.

When to call a technician

Call Bosch support or a technician. The pressure sensor and its hose must be checked from inside the machine.

Parts linked to E26 / F26 / F27

These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.

Order parts by your full model number so they fit.

Frequently asked questions

What does E26 / F26 / F27 mean on a Bosch washer?

The sensor that tells the control how much water is in the drum is not working properly, so the washer cannot judge when it has filled or emptied. Bosch says not to use the machine until it is fixed.

Which Bosch models show the E26 / F26 / F27 code?

Bosch doesn't publish a model list for this code; it appears on Bosch washers with a digital display. Check your owner's manual.

Can I fix Bosch E26 / F26 / F27 myself?

Only the basic checks. You can safely try the steps above, but E26 / F26 / F27 usually points to a part or fault that needs a technician.

What if E26 / F26 / F27 keeps coming back?

A code that returns after a reset and the checks above usually means a part is wearing out. Note when E26 / F26 / F27 appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.

Other Bosch washer codes

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

Sources we checked