Roper Range Burner Yellow Flame: Adjusting the Air... | appliancefaults.com

Technical Background:

The range burner operates by mixing natural gas or propane with air. The air shutter controls the amount of air that is mixed with the gas before it is ignited. Insufficient air results in incomplete combustion, producing a yellow flame and carbon monoxide. The burner assembly relies on proper gas pressure and clean burner ports to ensure efficient combustion.

Symptoms:

The homeowner observes that the burner flame on their Roper range is mostly yellow instead of the desired blue.

Possible Causes:

Insufficient air mixing with the gas.
Blocked air shutter.
Dirty burner ports.
Incorrect gas pressure.

Solution:

1

Turn off the gas supply to the range at the shut-off valve located near the range.
2

Remove the burner grate and burner cap.
3

Locate the air shutter on the burner tube. It's usually a small, adjustable collar or sleeve.
4

Loosen the screw that secures the air shutter. You may need a 1/4-inch nut driver or a small screwdriver.
5

Adjust the air shutter opening. Increase the opening slightly to allow more air to mix with the gas. A blue flame indicates proper combustion; a yellow flame indicates too little air.
6

Tighten the screw to secure the air shutter in the new position.
7

Turn the gas supply back on and test the burner. If the flame is still yellow, repeat steps 4-6, making further adjustments until a blue flame is achieved.

Safety Warning:

Always disconnect the gas supply before performing any maintenance or repairs. Gas leaks can cause explosions or carbon monoxide poisoning. Ensure proper ventilation when testing the burner. If you smell gas, evacuate the area immediately and call your local gas company.

Prevention:

Regularly clean the burner caps and burner ports with a small brush or wire to remove any debris. Check the air shutter periodically to ensure it is free from obstructions. Schedule a licensed technician gas pressure test annually.

Expert Tip:

Some Roper ranges have a specific service mode to test burner ignition and flame characteristics. Refer to the service manual or the Roper website for instructions on accessing this mode and interpreting the test results.

Frequently Asked Questions

•How do I clean the burner ports effectively?

Use a small wire or pin to gently clear any debris from the burner ports. Be careful not to enlarge the ports. Compressed air can also be used to blow out any remaining particles.

•What is the correct gas pressure for a Roper range?

The correct gas pressure is typically specified on the range's data plate, usually located on the back of the appliance. Natural gas pressure is usually around 4 inches of water column (WC), while propane is around 10 inches WC. Contact a qualified technician to test and adjust the gas pressure.

•What if adjusting the air shutter doesn't fix the yellow flame?

If adjusting the air shutter does not resolve the issue, there may be a problem with the gas regulator, or the burner assembly may be damaged. Consult with a qualified appliance repair technician to diagnose and repair the problem.

Roper Range Burner Yellow Flame: Adjusting the Air Shutter

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I clean the burner ports effectively?

•What is the correct gas pressure for a Roper range?

•What if adjusting the air shutter doesn't fix the yellow flame?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: