Thermador
Gas Cooktop

Model # CGX304U Official Thermador gas cooktop

Here are the diagrams and repair parts for Official Thermador CGX304U gas cooktop, 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.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 51 parts  |

Nut 14-93-167
#12

Rough-in box diagram

Nut

Part #14-93-167

Replaced by #00188978

?
Manufacturer substitution
This part replaces 14-93-167. Substitute parts can look different from the original.
$20.59
23% OFF Phone Price : $26.59
In Stock
Plug 20-02-377
#6

Maintop diagram

Plug

Part #20-02-377

Replaced by #00189324

?
Manufacturer substitution
This part replaces 20-02-377. Substitute parts can look different from the original.
$35.49
14% OFF Phone Price : $41.49
In Stock
Ring 20-02-042
#8

Maintop diagram

Ring

Part #20-02-042

This item is not returnable
Back Order
Solenoid 20-02-500
#5

Rough-in box diagram

Solenoid

Part #20-02-500

Replaced by #00411253

?
Manufacturer substitution
This part replaces 20-02-500. Substitute parts can look different from the original.
$192.49
6% OFF Phone Price : $204.49
In Stock
Venturi 20-02-396
#1

Maintop diagram

Venturi

Part #20-02-396

Replaced by #00189321

?
Manufacturer substitution
This part replaces 20-02-396. Substitute parts can look different from the original.
In Stock
Oven Switch 14-33-936
#10

Controls and tubing diagram

Oven switch

Part #14-33-936

Replaced by #00189008

?
Manufacturer substitution
This part replaces 14-33-936. Substitute parts can look different from the original.
$33.59
15% OFF Phone Price : $39.59
In Stock
Cooktop Burner Cap 20-02-021-04
#17

Maintop diagram

Cooktop burner cap

Part #20-02-021-04

Replaced by #00189336

?
Manufacturer substitution
This part replaces 20-02-021-04. Substitute parts can look different from the original.
$77.49
7% OFF Phone Price : $83.49
In Stock
Screw 14-91-118
Screw

Part #14-91-118

In Stock
O-ring 20-02-018-02
#11

Maintop diagram

O-ring

Part #20-02-018-02

This item is not returnable
In Stock
Mntg Kit 20-02-147
#22

Rough-in box diagram

Mntg kit

Part #20-02-147

Replaced by #00188954

?
Manufacturer substitution
This part replaces 20-02-147. Substitute parts can look different from the original.
$35.49
14% OFF Phone Price : $41.49
In Stock

Most common symptoms to help you fix your cooktops

Choose a symptom to see related cooktop repairs.

Main causes: lack of electrical power, gas supply failure, bad pressure regulator, control system failure…

Repair guides for gas cooktops

How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

Repair difficulty
Time required
 45 minutes or less
How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your cooktops

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

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

Cooktop common questions

Cooktop common questions

These common questions can help you make the most of your cooktop.…