Editorial & technical review
- Written by ApplianceWorth Editorial Team
- Technically reviewed by Victor — appliance technician
- Last reviewed 2026-07-01
- Applies to Samsung dishwashers
- Confidence medium
- Also displayed as TC
- Sources Manufacturer service documentation and field-repair experience · Methodology · Report a correction
What this code means
The control is receiving a thermistor signal outside the expected range.
Most likely causes
- A failed or disconnected thermistor
- A loose or corroded sensor connector
- Damaged wiring between the sensor and control
- A main-control sensor-input fault
Safe checks for the owner
- Turn off power for several minutes and retry once.
- Note whether the water is unusually hot or remains cold.
- Request service if the code returns; the sensor is not normally an owner-serviceable item.
Estimated U.S. repair cost
$220–$420, depending on model, access, parts availability and local labor.