Is your Sunray gas stove burner not heating properly? Start with the burner control knob, the most likely cause. A stripped, cracked, or worn knob may turn without rotating the valve stem, so the flame does not change from low to high. If the knob is in good condition but the flame remains weak or unchanged, inspect the surface burner valve. A loose or wobbly valve stem may not open the gas passage correctly, and the valve will need replacement. Next, turn off the gas stove and let the cooktop cool before checking the burner cap. A cap that is misplaced, warped, or damaged can distribute gas unevenly and cause a gas burner low flame or uneven heating. Also check that your cookware matches the burner size. A pan that is too small or too large can make the burner seem like it is not heating properly. These checks address common gas stove weak flame problems without replacing the entire appliance. Enter your Sunray model number to find the exact control knob, surface burner valve, or burner cap for your gas stove.
01 - Sunray Range/Stove/Oven Control Knob
If a burner flame is not changing as expected when the burner valve control knob is turned from low to high, it's possible the knob is stripped out or damaged and unable to rotate the valve stem. Inspect the knob for any cracks or wear and replace if necessary.
Enter model number to search for the required part specific to your product
If a burner flame is not changing as expected when the surface burner valve control knob is turned from low to high, it's possible the burner valve stem is damaged and not actuating the valve appropriately. If the valve stem appears loose or wiggles you should replace the surface burner valve.
Since burner caps help distribute the gas evenly around the burner, a burner cap that is not positioned correctly on the burner base can cause the burner not to heat properly. Confirm the appliance is turned off and the stovetop is cool to the touch, then readjust the burner cap, if necessary, so it is seated properly on the burner base. If the cap is damaged or warped, the flame can be higher on one side than the other. Inspect the burner cap for damage; a damaged burner cap will likely need to be replaced.
Less Common
04 - Incorrect cookware size being used
For best cooking performance use a burner that is best suited for the size of cookware being used. Using cookware that is too small or too large for the burner is not recommended.
Less Common
Frequently Asked Questions
Why is my Sunray gas stove burner not heating properly?
Why is my Sunray gas burner flame low even when the knob is turned to high?
Can a burner cap cause my gas stove burner to heat unevenly?
What cookware size should I use when my Sunray gas stove burner is not heating properly?
How do I find the correct Sunray gas stove burner part?
Unlock the Right Part for Your Repair
Find the exact part you need
Enter your model number to see parts that fit your machine.