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Model # TD121 Official Thermador dishwasher
Here are the diagrams and repair parts for Official Thermador TD121 dishwasher, as well as links to manuals and error code tables, if available.
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TD121 Dishwasher
Plate
Part #135323
The manufacturer no longer makes this part, and there's no substitute part
#51
All parts diagram
Fill clamp
Part #010049
The manufacturer no longer makes this part, and there's no substitute part
#248
All parts diagram
Switch
Part #135274
The manufacturer no longer makes this part, and there's no substitute part
#12
All parts diagram
Basket
Part #134730
The manufacturer no longer makes this part, and there's no substitute part
#206
All parts diagram
Screw drain pump cover
Part #901035
The manufacturer no longer makes this part, and there's no substitute part
#139
All parts diagram
Lens indicator light
Part #131412
The manufacturer no longer makes this part, and there's no substitute part
#242
All parts diagram
Stud tank roller
Part #130839
The manufacturer no longer makes this part, and there's no substitute part
#184
All parts diagram
Rail upper tank left
Part #130845
The manufacturer no longer makes this part, and there's no substitute part
#211
All parts diagram
Screw motor to pump housing
Part #901068
The manufacturer no longer makes this part, and there's no substitute part
#137
All parts diagram
Latch bi-metal detergent cup (seq. code "a" thru "n")
Part #134292
The manufacturer no longer makes this part, and there's no substitute part
Most common symptoms to help you fix your dishwashers
Choose a symptom to see related dishwasher repairs.
Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in was…
Main causes: not using rinse aid, rinse aid dispenser failure, broken heating element, malfunctioning vent, drying fan f…
Main causes: damaged or stuck spray arm, leaking door seal, damaged door hinge, leaky heating element water seal, cracke…
Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control syst…
Main causes: broken door spring, damaged or broken door hinge…
Main causes: broken door latch, tripped circuit breaker, broken heating element, faulty vent fan, sensor failure, contro…
Main cause: damaged rack height adjuster…
Main causes: improper loading, low water temperature, improper detergent dosage, detergent dispenser failure, spray arm …
Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure,…
Most common repair guides to help fix your dishwashers
These step-by-step repair guides will help you safely fix what’s broken on your dishwasher.

How to replace a dishwasher heating element
Dishes not drying as fast as they should? The dishwasher heating element could be on the fritz. Here's how to install a …
Repair difficulty
Time required
45 minutes or less

How to replace a dishwasher high-limit thermostat
Follow these steps to replace the high-limit thermostat in your dishwasher if prevents the heating element from heating.…
Repair difficulty
Time required
30 minutes or less

How to replace a dishwasher diverter motor
Upper spray arms not getting water? The diverter motor could be broken. Use this guide to replace it.…
Repair difficulty
Time required
30 minutes or less
Effective articles & videos to help repair your dishwashers
Use the advice and tips in these articles and videos to get the most out of your dishwasher.

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