Caloric
Gas Cooktop

Model # RTR-646 Official Caloric gas built-in cooktop

Here are the diagrams and repair parts for Official Caloric RTR-646 gas built-in 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 64 parts  |

Pressure Regulator 42301
#46

Cooktop diagram

Pressure regulator

Part #42301

The manufacturer no longer makes this part, and there's no substitute part

Cooktop Grill Cover 40605
#1

Cooktop diagram

Cooktop grill cover

Part #40605

The manufacturer no longer makes this part, and there's no substitute part

Valve Knob 42657
#6

Cooktop diagram

Valve knob

Part #42657

The manufacturer no longer makes this part, and there's no substitute part

Cooktop Grill Support 41063
#10

Cooktop diagram

Cooktop grill support

Part #41063

The manufacturer no longer makes this part, and there's no substitute part

Access Cover 40637
#39

Cooktop diagram

Access cover

Part #40637

The manufacturer no longer makes this part, and there's no substitute part

Air Shutter 40858
#15

Cooktop diagram

Air shutter

Part #40858

The manufacturer no longer makes this part, and there's no substitute part

Grease Pan Support 40959
#26

Cooktop diagram

Grease pan support

Part #40959

The manufacturer no longer makes this part, and there's no substitute part

Burner, Left Rear 42356
#59

Cooktop diagram

Burner, left rear

Part #42356

The manufacturer no longer makes this part, and there's no substitute part

Access Cover 40632
#62

Cooktop diagram

Access cover

Part #40632

The manufacturer no longer makes this part, and there's no substitute part

Griddle Burner Baffle, With Notch 40635
#8A

Cooktop diagram

Griddle burner baffle, with notch

Part #40635

The manufacturer no longer makes this part, and there's no substitute part

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.…