Smeg Dishwasher E4 Error Code: Causes and Fixes
Quick answer: Spray arm performance low
What you’ll notice
Cycle pauses; spray arm performance has fallen below the minimum threshold.
Smeg
Dishwasher
Code E4
high 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
- Spray arm holes blocked by limescale or food
- Object in the rack obstructing spray arm rotation
- Low inlet water pressure
Step-by-step fix
- Remove and clean the spray arms (see F6 steps).
- Check that no tall items in the rack block arm rotation.
- Spin both arms by hand before starting the next cycle.
Tools you may need
ToothpickSmall brush
Prevention
- Check spray arm clearance when loading the machine.
When to stop DIY
Replace spray arms if cleaning does not restore normal rotation.
FAQ
What does E4 mean on Smeg dishwasher?
E4 usually indicates: Spray arm performance low.
Can I keep using the appliance with E4?
Use caution. Severity is high. Replace spray arms if cleaning does not restore normal rotation.
How long does this fix usually take?
Typical first-pass troubleshooting takes 10–15 minutes.