Safety boundaries for error E22
Disconnect power when instructed, control water where relevant, and stop before disassembly or electrical measurement. Specific stop conditions: Broken glass or sharp debris is present; E22 returns with a clean, correctly fitted filter.
Safe sequence
- 1Disconnect power before reaching into the sump.
- 2Remove and clean the filter exactly as shown in the model manual.
- 3Reinstall the filter securely and run a rinse test.
Stop and get qualified help when
- Broken glass or sharp debris is present
- E22 returns with a clean, correctly fitted filter