GE JGB645SEK4SS gas range Parts

The model number for your GE gas range is on the appliance’s rating label. On the JGB645SEK4SS, you will typically find it on the oven frame behind the storage or broil drawer, or around the oven door opening.

Check these common spots in this order:

• Pull out the storage or broil drawer and look on the frame behind it
• Open the oven door and check the front frame around the door opening
• Look on the lower left or lower right front frame area
• Check the back panel if you cannot find it on the front frame

Most GE range labels include the model and serial number together. The model number is usually printed as a clear string like JGB645SEK4SS.

Small design changes can affect fit and function for items like an igniter, burner cap, or gas valve. Using the exact model number helps you select the correct replacement part the first time.

• Oven igniter WB13K21 for bake ignition issues
• Range surface burner cap WB28K10222 for uneven flames or poor burner lighting
• Range gas valve and regulator assembly WB21X33225 for gas flow regulation problems

Last updated: March 2026

To troubleshoot your GE JGB645SEK4SS gas range, start by matching the symptom to the system involved: surface burners, oven bake, broil, or electrical (lights and controls). Many problems come from clogged burner ports, weak igniters, or a failing valve.

Before any checks:

• Turn off power at the breaker if you will access wiring
• Turn off the gas supply if you smell gas or will remove gas components
• Let the range cool completely before touching burners or oven parts

• Confirm the burner cap is seated correctly
• Clean burner ports and the cap, then dry fully
• If the burner hardware is damaged, replace the cap or burner components

Helpful parts:

• Range surface burner cap WB28K10222
• Range extra large surface burner, 18,000-btu WB16X24722

A weak bake igniter often glows but does not open the gas valve reliably.

• Set BAKE and watch for igniter glow
• If glow is weak or ignition is delayed, replace the bake igniter

Helpful part:

• Oven igniter WB13K21

• Test broil; if the igniter does not glow or ignition is delayed, replace the broil igniter

Helpful part:

• Range broil igniter WB13X25261

• Stop using the range and shut off gas
• A sticking or worn valve can cause control issues

Helpful parts:

• Range surface burner valve WB21X20260
• Range gas valve and regulator assembly WB21X33225

Accurate troubleshooting prevents unnecessary part swaps and helps restore safe, consistent cooking performance on your GE gas range.

Last updated: March 2026

A GE gas range like the JGB645SEK4SS typically lasts 15 years with normal household use and basic maintenance. Keeping burners clean, ensuring proper ignition, and addressing weak heating early helps you reach that lifespan.

Most gas ranges reach their full service life when these conditions are met:

• Burners ignite quickly and flames stay steady (blue with minimal yellow tips)
• Oven heats consistently without long preheat times
• Door seals well and hinges close smoothly
• Controls respond normally without intermittent operation
• Spills are cleaned before they clog burner ports

Wear items are usually what end a range’s reliable performance. These are common on gas ranges:

• Oven igniter WB13K21 (slow or no bake ignition)
• Range broil igniter WB13X25261 (no broil or weak broil)
• Range light socket WB08T10026 (light flickers or will not turn on)
• Range surface burner grate bumper WB02X24790 (grates rock or rattle)

Knowing the expected 15-year lifespan helps you plan maintenance and decide when a targeted repair (like an igniter) makes more sense than chasing repeated performance problems.

Last updated: March 2026