Seeing **C1** on a Samsung dryer narrows the problem to **laundry detected during vent test**. What you do next depends on whether the code is an issue, a normal status/test message, or a model-dependent interpretation. Samsung uses overlapping code conventions across model years and regions. This page keeps the appliance context attached to the code so a same-looking string from another product family is not misapplied. The recorded display form is **C1**. Search normalization stores it as **C1** while preserving the characters a homeowner actually sees.
Reviewed by Ethan Mercer · Last reviewed August 17, 2026
Written by
Ethan Mercer Appliance Repair Content SpecialistPublished August 17, 2026Updated August 22, 2026Technically reviewed August 17, 2026
Content status:
Verified
Error codeC1
ApplianceDryer
Quick answer
Laundry detected during vent test.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so C1 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Seeing **C1** on a Samsung dryer narrows the problem to **laundry detected during vent test**. What you do next depends on whether the code is an issue, a normal status/test message, or a model-dependent interpretation. Samsung uses overlapping code conventions across model years and regions. This page keeps the appliance context attached to the code so a same-looking string from another product family is not misapplied. The recorded display form is **C1**. Search normalization stores it as **C1** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
A symptom that fits C1 is that the display appears while the appliance is otherwise able to respond normally.
While C1 is active, the message can be tied to a mode, test, reminder, setup state, or protective condition rather than a failed part.
Depending on the exact model, normal operation can resume after the documented mode or condition is cleared.
C1 can be accompanied by this pattern: c1 appears on the display while the appliance reports: Laundry detected during vent test.
Why it happens
Possible causes
varies by model/region — cross-region baseline — Laundry detected during vent test
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Before requesting service for C1, confirm the exact display characters and appliance model before treating the message as an issue.
As an external check for C1, check the user-facing setting, mode, door, filter, container, or setup condition named by Samsung for this display.
Before opening any service area, use the model-specific manual to clear the status; avoid repeated resets if the message reappears unexpectedly.
For C1, start by doing this: record the code and whether the dryer is vented or heat-pump/ventless.
The next non-invasive check is to clean/inspect lint filter, heat exchanger, water tank/drain, and external vent only when relevant.
To rule out an accessible cause, stop repeated resets if the code returns; model-specific electrical/refrigeration diagnosis can be required.
Important safety warning. When working around a dryer that shows C1, keep the checks external and non-invasive. Stop for burning smell, smoke, gas odor, repeated breaker trips, or abnormal overheating. Do not bypass thermal protection.
Get help
When to request repair service
Service is not automatically required. Request diagnosis only if the status cannot be cleared as designed or normal operation does not resume. A repeatable C1 event is more useful diagnostically than repeated resets, because it shows when the laundry detected during vent test check is failing.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
Resetting can clear a temporary state, not a persistent issue. If **C1** comes back, preserve the code and move to the safe checks or model-specific service path.
The display can be normal in the documented context. If **C1** appears unexpectedly, cannot be cleared, or prevents normal operation, then the issue deserves diagnosis.
Treat **C1** as a starting point, not a replacement instruction. Wiring, feedback signals, operating conditions, and electronic controls can mimic a failed component.
The same-looking code can be reused on another Samsung appliance family or reformatted by region/model year. Match the appliance type and exact model before applying a meaning. This page therefore keeps **Dryer C1** separate from same-looking codes used by other Samsung appliance families.
