Bosch Dishwasher E:22 and a sump that will not clear

What E:22 means

Standing water in the bottom of the tub is what goes with E:22. The control found water in the sump at a moment when it expected the sump to be dry. Bosch lists three steps: empty the sump, clean the fine screen and the coarse filter above it, then work out where the water came from so it does not return. Clogged filters are the ordinary culprit, which is why the filter cleaning comes second.

Common causes of E:22

Fine screen coated with grease and food film
Coarse filter packed with scraps
Slow leak somewhere else that drains into the sump

✓ One safe check you can try

1. Take out the lower rack and bail out the standing water with a cup. 2. Twist out the filter set, knock the coarse trap clean into the trash and rinse the fine screen until you can see light through the mesh. 3. Refit it with the arrows lined up. 4. Run a hot rinse with the tub empty.

! Why to stop there

Gentle rinsing is the only safe way to clean the screen; scrubbing with a wire brush tears the mesh.
If the water came from a leak, cleaning the filter will not stop it.
Water left standing can turn sour and breed odor in the tub.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Dishwasher codes

E:30Bosch Dishwasher E:30, voltage too high and the machine shut down E:31Water in the zeolite container - Bosch Dishwasher E:31 FBosch Dishwasher F on an older display (water filling) 2HBosch Dishwasher 2H: Long Cycle Warning on Older Displays 1Bosch Dishwasher Service Test Result 1: Aqua Sensor 2Bosch Dishwasher Service Test Result 2: Heating Group 4Bosch Dishwasher Service Test Result 4: Water Filling 8Bosch Dishwasher Service Test Result 8: Temperature Sensor

E:22E:22 questions

How often should the filter get cleaned?

Monthly is a good habit for a busy household. A quick rinse takes minutes and spares you cycles that leave dishes gritty and the tub smelling stale.

Why is water left behind after a cycle?

Usually the filters are blocked and the drain pump cannot clear the sump. Cleaning them fixes it most of the time. If the water returns quickly, there may be a leak or a pump problem.

What if cleaning does not clear E:22?

Then we look for a slow leak or a drain problem. We tell you what we find, and you have the written price before any part is ordered.