Roper Oven Smells Like Gas When Baking: Troubleshooting... | appliancefaults.com

Technical Background:

The Main Control Unit (MCU) sends a 120V AC signal to the gas valve solenoid to open the valve when baking is initiated. The igniter simultaneously receives voltage to heat up and ignite the gas. A faulty igniter or valve can lead to unburnt gas accumulating and causing the smell.

Symptoms:

The homeowner observes a distinct smell of gas emanating from the Roper oven only when the oven is in use for baking. The smell is absent when the oven is turned off.

Possible Causes:

Gas valve not fully opening or closing.
Burner tube misalignment.
Incomplete combustion due to insufficient air.
Gas pressure regulator malfunction.
Spillage or debris on burner.
Faulty igniter or spark module.

Solution:

1

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

Disconnect the power to the range at the breaker panel. Use a voltage tester to confirm the power is off.
3

Remove the oven racks and any obstructions.
4

Inspect the burner tube for proper alignment with the gas valve orifice. Adjust as needed.
5

Clean the burner tube and orifice with a wire brush and vacuum to remove debris.
6

Check the gas pressure regulator with a manometer. It should read approximately 3.5 inches of water column (WC).
7

Test the oven igniter for proper operation. The igniter should glow brightly and draw approximately 3.2-3.6 amps AC when energized. If the igniter is weak, replace it.

Safety Warning:

Lock Out/Tag Out (LOTO) the breaker panel before working on any electrical components. Gas leaks are potentially explosive. Ensure proper ventilation and use a gas leak detector to verify repairs are complete before restoring gas service. This appliance operates at 120V AC and high temperatures; take necessary precautions to avoid electrical shock and burns.

Prevention:

Regularly clean the oven interior to prevent food spills from accumulating on the burner. Annually inspect the burner tube and orifice for debris. Consider licensed technician inspection and cleaning every 2-3 years.

Expert Tip:

Many Roper ovens have a hidden service mode. Press and hold the 'Bake' and 'Broil' buttons simultaneously for 3 seconds to access diagnostic codes and perform self-tests.

Frequently Asked Questions

•How do I check the gas pressure regulator?

You need a manometer to check the gas pressure. Connect the manometer to the test port on the gas pressure regulator. The pressure should read approximately 3.5 inches of water column (WC) when the oven is operating.

•What if the igniter glows but the burner doesn't light?

If the igniter glows but the burner doesn't light, the gas valve may be faulty. You can test the gas valve solenoid with a multimeter for continuity. If there is no continuity, the solenoid is likely defective and the valve needs replacing. Also, ensure the burner tube is properly aligned.

•How often should I have my gas oven professionally serviced?

It's recommended to have your gas oven professionally serviced every 2-3 years. A qualified technician can inspect the gas lines, burner components, and safety features to ensure proper and safe operation. This includes checking for gas leaks, proper combustion, and carbon monoxide levels.

Roper Oven Smells Like Gas When Baking: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I check the gas pressure regulator?

•What if the igniter glows but the burner doesn't light?

•How often should I have my gas oven professionally serviced?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: