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Error code reference
Bosch Dryer Error Code 2
NTC R3 fault-the 'Iron dry' LED flashes in the progress indicator, indicating an NTC thermistor fault for the exhaust-air temperature sensor.
SourceBosch WTA34/WTA35 Tumble Dryer - Service ManualPage 7 (Section V, Error no. 2)
Diagnostic procedure
The full 2 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
Test NTC R3, cable, and plug-and-socket connection per Error number 1 procedure.
SourceBosch WTA34/WTA35 Tumble Dryer - Service ManualPage 7 (Section V, Error no. 2)
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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