Smeg oven
showing Error 4
On Smeg's US self-clean ovens, Error 4 is the message for a door lock malfunction during the SELF CLEAN function.
Mon–Sat, 8am–8pm
- Door and lock
- Door lock and self-clean repair
- Source: Smeg
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What Error 4
actually means.
On Smeg's US self-clean ovens, Error 4 is the message for a door lock malfunction during the SELF CLEAN function. No other function can be chosen while the lock device is engaged.
Smeg oven display
What to do when Error 4 shows on the ovenKind of codeDoor and lock
The motorized lock did not reach the position the control asked for, or its switch reported the wrong one. Most often this shows during or after self-clean; the latch, its switches and the door's alignment are checked before the lock motor is replaced.
Usually leads toDoor lock and self-clean repair
A door that stays locked after self-clean, a cycle that will not start or stops early, traced to the lock motor, its switches or the cleaning heat.
Shows up asOven Self-Clean Problems
Self-clean will not start, stops part way, leaves the oven dirty, or the oven stops working right after it.
MakeSmeg
An Italian manufacturer with built-in ovens in several design lines, sized in 24 and 30 inches for American kitchens.
SourceSmeg US manual 91477B177 for the SOPU3104TPG / SOPU3304TPX self-clean ovens (doc.smeg.it)
From Smeg US manual 91477B177, linked from the SOPU3104TPG and SOPU3304TPX product pages.
Before you book,
in this order.
Each step comes from Smeg's own guidance for Error 4 on its ovens. Follow it to the end: the last card says whether this is a visit.
Switch the oven off, then back on.
If the door still does not unlock once the cavity has cooled, leave the lock lever alone.
Book a visit if Error 4 returns.
Still there?
It usually turns into door lock and self-clean repair. Book with the code and the model number.
What not to do
Error 4 is not the normal cool-down lock. After self-clean, Smeg keeps the door locked until the cavity is back to a safe temperature, and that wait is expected.
What you may
notice with it.
The oven problems Error 4 tends to arrive with. Answer these at the oven before anyone is booked.
All problems
Oven Self-Clean Problems
5 causes, cheapest first
Where Error 4 usually leads
Door lock and self-clean repair.
Smeg
ovens.
An Italian manufacturer with built-in ovens in several design lines, sized in 24 and 30 inches for American kitchens.
Smeg oven repairMore Smeg codes
Door and lock on other makes
Single wall oven
One oven cavity set into a cabinet at chest height, with its own controls above the door and nothing to cook on above it.
Steam oven
A built-in oven that adds water vapor to the cavity, alone or with convection heat, fed from a tank or a water line.
Speed oven
A compact built-in oven that combines convection heat with microwave energy in one cavity to cook in a fraction of the usual time.
In Smeg's own words
In case of door lock malfunction, the message "Error 4" displays.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. From Smeg US manual 91477B177, linked from the SOPU3104TPG and SOPU3304TPX product pages.
Smeg Error 4 oven 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 Error 4.
Can I clear Error 4 myself?
Can I release the Smeg door lock lever by hand after Error 4?
Does Error 4 on a Smeg mean self-clean finished?
Back to your everyday
Still showing Error 4?
Book with the code exactly as shown, the full model number, and whether you can smell gas or burning — with a code, that is where the diagnosis starts.