Range or cooktop produces a loud popping or banging noise during heating or cooling.

Safety first: If the noise is accompanied by a strong gas smell or visible flame flare-up, shut off gas and power and contact a professional.

• Identify source: Determine if the noise is from the oven cavity (metal popping) or from burners (sharp bangs on ignition).
• Normal expansion: Some mild popping from metal expansion is normal. However, very loud bangs from the oven burner may indicate delayed ignition.
• Clean oven burner: Have the oven burner and ports cleaned to ensure even gas flow and prompt ignition.
• Check burner mounting: Tighten any loose burner screws or brackets that may rattle.

When to call a technician: Loud bangs or booms from gas ignition require professional inspection of gas pressure, burner alignment, and ignition timing.