What does the Siemens E22 error code mean?
E22 on a Siemens dishwasher means the fine mesh filter system at the base of the machine is blocked. The wash pump cannot circulate water effectively. This is the most common Siemens dishwasher fault and is almost always resolved by a 5-minute filter clean.
🔍 Symptoms
- Dishes coming out with food residue still on them
- Standing water in the base of the tub after a cycle
- Grinding noise during wash phase
- Wash arms not spinning efficiently
- Cycles taking longer than usual
How to fix the Siemens E22 error code
- Remove the lower basket and unscrew the cylindrical filter (anti-clockwise).
- Remove both the cylindrical filter and the flat mesh filter beneath it.
- Rinse under hot running water, using a brush to remove grease and trapped debris.
- Soak in white vinegar solution for stubborn limescale.
- Refit the filter correctly (click into position), and run a 65°C maintenance wash.
Frequently Asked Questions (FAQ)
Q: How often should I clean my Siemens dishwasher filter?
A: Monthly for most households. If you frequently wash heavily soiled pots and pans without pre-rinsing, clean it fortnightly.
Q: Can a dirty filter actually break my Siemens dishwasher?
A: Over time, yes. A chronically blocked filter puts sustained strain on the wash pump motor, which can cause it to overheat and fail — turning a £0 problem into a £50–£100 pump repair.
Q: My Siemens dishwasher filter is clean but E22 is still showing — what next?
A: Try a full reset (power off at the wall for 2 minutes). If E22 persists, there may be a partial blockage deeper in the circulation pump that requires accessing the pump housing directly.
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