Samsung Washer Error Code TCH

TCH on a Samsung washer indicates a humidity sensor fault, specifically the detection of an open or short circuit in the sensor. The washer's control board monitors the humidity sensor signal during operation, and when that signal falls outside the expected range, the TCH code is triggered. This is a hardware-level fault related to the sensor or its wiring and connector.

It is generally not recommended to continue running the washer while the TCH code is active. The humidity sensor plays a role in the machine's cycle management, and operating without a functioning sensor could affect wash or drying performance. Addressing the fault promptly will prevent potential secondary issues.

Repair costs vary depending on what needs to be replaced. If only the humidity sensor connector needs to be reseated or cleaned, there may be no parts cost at all. If the humidity sensor itself needs replacement, parts costs typically fall in the range of $20 to $80, with professional labor adding $75 to $150 or more depending on the service provider and region.

Yes, in some cases. Start by checking that the humidity sensor connector is firmly seated and free of corrosion or damage. If the connection looks good and the error persists, the sensor itself likely needs to be replaced. Replacing the humidity sensor is a moderately involved repair that requires accessing the sensor inside the machine, so comfort with appliance disassembly is helpful.

A reset may temporarily clear the display, but the TCH error will return if the underlying hardware fault is not corrected. Because TCH indicates an actual open or short circuit in the humidity sensor or its wiring, the root cause must be identified and repaired before the code will stay clear.