Bosch
Dryer

Model #WTMC3321US/03 Bosch dryer

Here are the diagrams and repair parts for Bosch WTMC3321US-03 dryer, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

    Showing 10 of 94 parts

    Dryer High-Limit Thermostat

    #405

    All parts Diagram

    Protector

    Part #422272
    Replaced by #00422272
    ?
    Manufacturer substitution
    This part replaces 422272. Substitute parts can look different from the original.
    In Stock
    $85.24
    Dryer Drum Light Bulb

    #319

    All parts Diagram

    Dryer drum lamp

    Part #422173
    Replaced by #00422173
    ?
    Manufacturer substitution
    This part replaces 422173. Substitute parts can look different from the original.
    In Stock
    $22.14
    Dryer Door Strike

    #224

    All parts Diagram

    Door latch

    Part #491673
    Replaced by #00491673
    ?
    Manufacturer substitution
    This part replaces 491673. Substitute parts can look different from the original.
    Back Order
    $60.11
    Washer Door Hinge Bushing

    #219

    All parts Diagram

    Bushing

    Part #422204
    Replaced by #00422204
    ?
    Manufacturer substitution
    This part replaces 422204. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $3.87
    Dryer Rear Bearing

    #303

    All parts Diagram

    Bearing

    Part #491607
    Replaced by #00618931
    ?
    Manufacturer substitution
    This part replaces 491607. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $29.16
    Dryer Lint Screen

    #312

    All parts Diagram

    Dryer lint screen

    Part #436476
    Replaced by #00436476
    ?
    Manufacturer substitution
    This part replaces 436476. Substitute parts can look different from the original.
    In Stock
    $29.16
    Dryer Door Outer Panel

    #223

    All parts Diagram

    Door

    Part #243462
    Replaced by #00249105
    ?
    Manufacturer substitution
    This part replaces 243462. Substitute parts can look different from the original.
    Back Order
    $360.80
    Washer Cover

    #227

    All parts Diagram

    Dryer cover

    Part #640549
    Replaced by #00640549
    ?
    Manufacturer substitution
    This part replaces 640549. Substitute parts can look different from the original.
    In Stock
    $19.62
    Dryer Drum Bearing Retainer Clip

    #302

    All parts Diagram

    Dryer retainer clip

    Part #422226
    Replaced by #00422226
    ?
    Manufacturer substitution
    This part replaces 422226. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.83
    Dryer Door Switch

    #316

    All parts Diagram

    Switch

    Part #422183
    Replaced by #00422183
    ?
    Manufacturer substitution
    This part replaces 422183. Substitute parts can look different from the original.
    In Stock
    $43.21

    Symptoms common to all dryers

    Choose a symptom to see related dryer repairs.

    Main causes: bad drum support roller, damaged idler pulley, broken blower fan blade, worn drum glide bearing, bad drive motor
    Main causes: bad gas valve coils, broken heating element, tripped safety thermostat or fuse, bad operating thermostat, control failure
    Main causes: bad timer or electronic control board, door switch failure
    Main causes: lack of electrical power, bad power cord, wiring failure, bad control board, blown thermal fuse, bad door switch
    Main causes: clogged exhaust vent, bad motor relay, loose dryer door catch, bad door switch, control system failure, faulty drive motor
    Main causes: damaged door strike, worn door catch
    Main causes: door switch failure, lack of power, broken belt, blown thermal fuse, bad drive motor, control system failure
    Main causes: clogged exhaust system, heating system failure, deposits on moisture sensor, control system failure

    Repair guides common to all dryers

    These step-by-step repair guides will help you safely fix what’s broken on your dryer.

    August 1, 2014
    By Lyle Weischwill
    How to replace a dryer drum support roller

    If your dryer thumps or squeals, replace the drum support roller to restore quiet to your home.

    Repair difficulty
    Time required
     90 minutes or less
    August 1, 2014
    By Lyle Weischwill
    How to replace a dryer thermistor

    The thermistor senses the air temperature in the dryer. If your dryer overheats or doesn't heat at all, the thermistor could be the problem.

    Repair difficulty
    Time required
     30 minutes or less
    August 1, 2014
    By Lyle Weischwill
    How to replace a dryer idler pulley

    The idler pulley exerts pressure keeps the drive belt tight so it can rotate the drum. A worn idler pulley squeals or squeaks when the dryer is running. Follow these instructions to replace it.

    Repair difficulty
    Time required
     90 minutes or less

    Articles and videos common to all dryers

    Use the advice and tips in these articles and videos to get the most out of your dryer.

    January 4, 2022

    How to replace a Maytag dryer heating element

    By Lyle Weischwill

    Learn how to replace a Maytag dryer heating element

    August 18, 2021

    Wiring schematic symbols explained video

    By Sears PartsDirect staff

    Learn some of the most common symbols found in a wiring diagram and what they mean.

    April 26, 2016

    Gas dryer won't start troubleshooting video

    By Sears PartsDirect staff

    Check these three things if your gas dryer won't start or run.