Smeg Dishwasher E24 Error Code: Causes and Fixes
Quick answer: Drain path restriction
What you’ll notice
Dishwasher does not drain or drains very slowly; drain restriction detected.
Smeg
Dishwasher
Code E24
medium severity
Smeg models: Smeg dishwashers have a stainless-steel tub interior. The filter is in the centre of the tub floor, twist-out. The retro colour finishes (Cream, Pastel Blue, Pink, etc.) are cosmetic — the internal components are identical across all SMEG dishwasher colours and finishes.
Common causes
- Filter clogged (check first)
- Drain hose kinked or pressed against the cabinet wall
- Household drain or garbage disposal inlet blocked
- Drain pump impeller jammed
Step-by-step fix
- Clean the filter (see E22 steps).
- Pull the machine out slightly and straighten the drain hose.
- Check the high-loop or air gap if fitted.
- If connected to a garbage disposal, confirm the knockout plug was removed at installation.
- Run a drain cycle to test.
Tools you may need
TowelsFlashlight
Prevention
- Mount the drain hose in a high-loop to prevent backflow.
- Clean the drain hose every 6–12 months.
When to stop DIY
If all mechanical checks pass and the machine still won't drain, the pump motor needs testing.
FAQ
What does E24 mean on Smeg dishwasher?
E24 usually indicates: Drain path restriction.
Can I keep using the appliance with E24?
Use caution. Severity is medium. If all mechanical checks pass and the machine still won't drain, the pump motor needs testing.
How long does this fix usually take?
Typical first-pass troubleshooting takes 10–20 minutes.