Written by
Adrian Soto Appliance Repair Content SpecialistPublished September 5, 2026Updated October 20, 2026
Error codet1, T2, tSt
ApplianceWasher
Quick answer
t1, T2 and tSt mean the washer is in test mode. Samsung's step is a 30-second reset at the mains.
Model compatibility: Samsung reuses codes across series and model years, so t1, T2, tSt 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
Appliance in test mode (legacy ee2/t2/tSt).
When a Samsung washer shows t1, T2 or tSt, the appliance is in test mode. Older displays may show ee2, t2 or tSt for the same thing. The source is Samsung’s Levant article, which lists current and legacy codes together, so the meaning can differ by model.
Getting out of test mode
Switch the washer off at the mains, wait 30 seconds, then switch it on and start a new programme. Should the code remain, contact customer support.
Codes that start with t
tC1, tC2 and tC3: temperature sensor error, a different code despite the similar letter.
A washer stuck in test mode after the reset can go to our Los Angeles washer repair line, (310) 896-4231. Say which code is displayed and give the model number.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
