6 sourced reports, with what to check before you buy. Each one links to the page it was reported on.
Costly or dangerous
Ender 3 V3 SE stops extruding after a few minutes despite repeated hotend changes
Owner report from the lesimprimantes3d.fr forum (query: 'Creality Ender 3 V3 SE extruder clog'). The owner describes filament progressively stopping at the nozzle after a few minutes of printing, persisting across multiple settings and after changing the heatblock several times.
What to check. If you buy this printer, expect that a sudden loss of extrusion mid-print may not be fixed by slicer settings alone; the hotend path (nozzle/heatbreak) is the first thing to inspect and clear.
Wrong firmware version for the C13/C14 board revision bricks the Ender 3 V3 SE
Community firmware documentation (query: 'Creality Ender 3 V3 SE firmware update bricked'). The Ender 3 V3 SE ships with two incompatible mainboard revisions (C13/STM32F103 and C14/STM32F401) that need different firmware files and folder layouts; flashing the wrong one causes boot failure or a black/unresponsive screen.
What to check. Before any firmware update, identify whether the board is C13 or C14 (via the silkscreen or the About screen), because installing the wrong firmware can brick the printer into a black screen.
After a year of use the Ender 3 V3 SE needed a new motherboard, head plate and hotbed repaint
Verified owner review on the Alza retailer site (query: 'Creality Ender 3 V3 SE reliability forum'). One owner reports that after a year of use the machine required service with a new motherboard, new head plate and a hotbed repaint.
What to check. Long-term reliability can require mainboard and hotend replacement within the first year; factor in service cost when budgeting.
Bed thermistor false readings trigger spurious Thermal Runaway cancellations
Community firmware thermal-protection documentation (query: 'Ender 3 V3 SE thermal runaway error'). Reports intermittent false readings from the bed thermistor from mid-2024 that halt prints with a Thermal Runaway error even when the temperature is actually stable.
What to check. A spurious Thermal Runaway halt is a known failure mode on this model; if the temperature reads stable, suspect the bed thermistor rather than a genuine heater fault.
First-layer adhesion fails despite auto leveling because the bed is not physically trammed
Owner thread (query: 'Ender 3 V3 SE first layer calibration problems'). Owners report first-layer adhesion gaps despite the automatic leveling; forum replies explain the sensor only compensates for bed flatness and the bed still needs physical tramming, with one owner measuring over half a millimetre of variance.
What to check. The auto-leveling sensor does not replace physical bed tramming; expect to manually level the four corners or first-layer quality will suffer.
Worn extruder gear slips under load and combines with a partial nozzle clog
Repair-record case study (query: 'Creality Ender 3 V3 SE extruder clog'). A repairer diagnosed a worn extruder gear slipping under load combined with a partial nozzle clog, and fixed it by replacing the gear, cleaning the hotend and recalibrating E-steps.
What to check. The extruder gear is a wear item; a partially clogged nozzle increases load and accelerates gear wear, so a printer that stops extruding may need the gear replaced, not just the nozzle cleared.
These reports come from the pages linked under each item: owner forums, repair guides and workshops. They are not a diagnosis of any one unit, and a careful check of the one you are buying still applies.
Text from the Kriko 3D printers catalog, version 0.1.1, under the CC-BY-SA-4.0 license.
