Smeg dishwasher
showing E4
E4 means something is wrong with the way the dishwasher monitors water temperature.
Mon–Sat, 8am–8pm
- Sensor circuit
- Controls and sensors
- Source: Smeg
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Three short steps, about a minute.
or call (844) 430-4286
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What E4
actually means.
E4 means something is wrong with the way the dishwasher monitors water temperature.
Smeg dishwasher display
What to do when E4 shows on the dishwasherKind of codeSensor circuit
A temperature, turbidity or water-level sensor reporting a value outside its range, or the wiring to it. The reading is measured with a meter before any part is ordered.
Usually leads toControls and sensors
Dead panels, stuck cycles and blinking lights, separated into board, keypad, sensor and wiring before a part is ordered.
Shows up asDishwasher Not Heating Water
Dishes and the tub are cool at the end of the cycle, and grease stays on plates.
MakeSmeg
Italian-designed dishwashers in built-in and panel-ready versions, sized for American kitchens.
SourceSmeg dishwasher user manual 19293010200, 6 Troubleshooting (doc.smeg.it PDF, linked from the smeg.com/us page for STU8222)
Smeg dishwashers covered by manual 19293010200, including STU8222; the alarm appears as a light pattern the table calls E4.
Before you book,
in this order.
Each step comes from Smeg's own guidance for E4 on its dishwashers. Follow it to the end: the last card says whether this is a visit.
Interrupt the program and turn the machine off.
Turn it on again, choose the program and start the cycle.
Book a visit if E4 is still there.
What not to do
E4 concerns the monitoring of the temperature rather than the heating itself, which is E3.
What you may
notice with it.
The dishwasher problems E4 tends to arrive with. Answer these at the dishwasher before anyone is booked.
All problems
Dishwasher Not Heating Water
5 causes, cheapest first
Where E4 usually leads
Controls and sensors.
Read these
before the visit.
Short guides that make the call quicker and the diagnosis cheaper.
All guidesSmeg
dishwashers.
Italian-designed dishwashers in built-in and panel-ready versions, sized for American kitchens.
Smeg dishwasher repair
Built-in dishwasher
The standard 24-inch machine under the counter, and the one nearly every American kitchen has.
Panel-ready dishwasher
Hidden behind a cabinet door, controlled from the top edge, and repaired with the panel's weight in mind.
Compact dishwasher
The 18-inch and ADA-height machines for small kitchens, where the tight tub changes both loading and repairs.
In Smeg's own words
Water temperature monitoring malfunction
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Smeg dishwashers covered by manual 19293010200, including STU8222; the alarm appears as a light pattern the table calls E4.
Smeg E4 dishwasher repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about E4.
Can I clear E4 myself?
Does E4 on my Smeg mean the heater has failed?
How do I reset my Smeg after E4?
Back to your everyday
Still showing E4?
Book with the characters exactly as shown, the full model number, and whether any water is on the floor — for a code, that is where the diagnosis begins.