Tech Fundamentals

Gas smell or CO alarm on a service call: what to do

This is an emergency, not a repair. Stop work, get everyone out, don't operate switches or anything that can spark, and call 911 and the gas utility from a safe distance. Gas-side work is for a licensed gas technician.

Cross-checked ~5 min easyBrands: All

Before you start

  • BLOCKED: no gas line, valve, regulator or leak work
  • Don't turn lights or appliances on or off, don't unplug anything, don't use a lighter

Diagnostic steps

Unlock all 4 steps with expected values

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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Gas smell or CO alarm on a service call: what to do · OnCall Tech