Error code reference

Samsung Washer Error Code TC4

Temperature sensor error on the lower washer - occurs when temperature of motor driver in inverter PBA is high, or when thermistor of IPM is open or short.

SourceSamsung Dual Loading Washer - Service Manual (WV9900M Series)p. 33, 41

Diagnostic procedure

The full TC4 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check the inverter PBA; lower washer: replace PBA inverter.

SourceSamsung Dual Loading Washer - Service Manual (WV9900M Series)p. 33, 41

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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