Model reference
Bosch WTMC3321US/03
Dryer
1 document14 error codes8 service modes
Available documentation
Service Manual
- Wtmc/wtxd Gas & Electric Dryer Training Manual76 pg
MyPros+ Max
Diagnose your Bosch WTMC3321US/03.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
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Error codes (14)
CodeMeaning
E:01Overheating due to clogged lint filter (displayed during normal use…E:03Maximum drying time exceeded, displayed during normal use after 240-minute…E:11Overheating due to clogged lint filter; measures reduced air flow.E:12Severe overheating due to clogged lint filter; measures reduced air flow.E:13Maximum drying time exceeded (240 minutes); usually a faulty heater or…E:17NTC error for NTC R3 at lint screen; typically a shorted or opened wire harness.E:18NTC error for NTC R2 at heater; typically a shorted or opened wire harness.E:20EEPROM error; dryer stops and cannot be restarted.E:21Incorrect checksum; dryer stops and cannot be restarted.E:22Invalid update; dryer stops and cannot be restarted.E:23Model variant doesn't match table; dryer stops and cannot be restarted.E:24Software version doesn't match table; dryer stops and cannot be restarted.E:25Damaged data table; dryer stops and cannot be restarted.E:26Control error.Service modes (8)
- 240V to 208V Voltage Changeover["Enter test program.","Rotate cycle selector knob to 60 minute Time Dry (WTMC33/WTXD53) or Medium…
- Consumer Test (Amp Draw Test)["Disconnect electric power and remove rear cover, ensuring no electrical shorts or shock…
- Control Elements Test["Enter test program.","Rotate cycle selector knob to Damp Dry
- Display Test (LEDs/LCDs)["Enter test program.","Rotate cycle selector knob to Regular Dry
- Moisture Sensor Conductance Test["Disconnect electric power. Remove rear cover. If necessary, remove drum for access to moisture…
- Sales Demo Mode["Push and hold Start/Stop and Delicates buttons.","Rotate cycle selector knob to 40 minute Timed…
- Test Program (Diagnostic Mode)["Rotate cycle selector knob to Off position.","Push and hold Start/Stop and Delicates buttons at…
- View Fault Codes["Enter test program (hold Start/Stop and Delicates, rotate knob on).","Rotate cycle selector knob…
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