The **t0** display on a Samsung dryer points to **temperature / temperature-sensor error**. Treat it as a diagnostic direction rather than a parts order: operating conditions, wiring, sensors, actuators, and control electronics can overlap. The exact stage when the code appears can be as important as the characters themselves. Note whether it happens at startup, during fill, heating, cooling, draining, spinning, drying, or after a power event. The recorded display form is **t0**. Search normalization stores it as **T0** 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 codeT0
ApplianceDryer
Quick answer
Temperature / temperature-sensor error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so T0 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
The **t0** display on a Samsung dryer points to **temperature / temperature-sensor error**. Treat it as a diagnostic direction rather than a parts order: operating conditions, wiring, sensors, actuators, and control electronics can overlap. The exact stage when the code appears can be as important as the characters themselves. Note whether it happens at startup, during fill, heating, cooling, draining, spinning, drying, or after a power event. The recorded display form is **t0**. Search normalization stores it as **T0** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
When the t0 condition is present, the control can stop or limit operation because a temperature reading is missing or implausible.
t0 can be accompanied by this pattern: heating, cooling, drying, or defrost behavior can become inconsistent.
On affected Samsung dryer models, the display can return at a similar stage each time the affected sensor is checked.
t0 can be accompanied by this pattern: t0 appears and drying may pause or performance may change because of temperature / temperature-sensor error.
A symptom that fits t0 is that heat, airflow, motor, drainage, door, or sensor behavior can be affected depending on the code family.
Why it happens
Possible causes
varies by model/region — cross-region baseline — Temperature / temperature-sensor error
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
A safe owner-level check is to record when the code appears and whether the appliance had just heated, cooled, or defrosted.
For t0, start by doing this: confirm vents, doors, filters, and ambient conditions are normal where they affect the sensor reading.
With t0 recorded, use the exact model manual before assuming the sensor itself is defective.
For t0, start by doing this: record the code and whether the dryer is vented or heat-pump/ventless.
Before requesting service for t0, clean/inspect lint filter, heat exchanger, water tank/drain, and external vent only when relevant.
Before opening any service area, stop repeated resets if the code reappears; model-specific electrical/refrigeration diagnosis may be required.
Important safety warning. Stop for burning smell, smoke, gas odor, repeated breaker trips, or abnormal overheating. Do not bypass thermal protection. If resolving t0 would require energized internal access, that is the point to hand the diagnosis to a qualified technician.
Get help
When to request repair service
For t0, the service threshold is straightforward: Persistent temperature-sensor codes usually require resistance/connection checks at the sensor, harness, and control—work best done with the model-specific service procedure. Bring the exact model number and a photo of the display so the diagnosis stays tied to the documented Samsung code.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You can try the one reset Samsung documents for the model, but **t0** returning afterward means the condition still exists. Note the operating stage instead of cycling power repeatedly.
That depends on the accompanying symptom. A code with no safety hazard may allow a short diagnostic check, but **t0** should not be ignored if performance is deteriorating or the display keeps returning.
No. **t0** tells you which condition or check the control detected. The same display can result from the named component, its wiring, a connector, a supply/airflow/water condition, or the control that reads it.
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 t0** separate from same-looking codes used by other Samsung appliance families.
