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Pilot light will not stay on

Repeated pilot failure needs professional diagnosis. Do not bypass a safety control or keep attempting ignition.

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Updated September 10, 2026Homeowner guidance
A technician checking the pilot assembly of a gas insert set in a brick opening with the glass front removed; illustrative image
Illustrative service image — not a documented company job
CHIMNEY / FIREPLACE / HOMEUSA CHIMNEY PROS
STOP USE

What to do first

Stop using the affected fireplace until it has been assessed. For suspected gas, a CO alarm, an active fire, or immediate danger, leave and call 911 from a safe location.

This form does not dispatch emergency help.

Gloved hands testing a thermopile with multimeter leads; illustrative image
Illustrative service image — not a documented company job
01 / A CLOSER LOOK

Repeated pilot failure is a diagnostic question

Record whether the pilot failed immediately or after the appliance had been operating, if that is already known. Avoid naming a replacement part based on a video or forum. Ask for the technician's finding, compatible part identification, and the checks needed before returning the appliance to use.

A living room with a direct-vent gas fireplace and a small steady flame behind glass; illustrative image
Illustrative service image — not a documented company job
02 / THE HOMEOWNER PERSPECTIVE

What the inspection should resolve

Ask for the cause, supporting photographs, limitations of the inspection, and a written recommendation about continued use. A repair quote should identify the affected parts and the reason for the proposed work.

THE SHORT ANSWER

Repeated pilot failure needs professional diagnosis. Do not bypass a safety control or keep attempting ignition.

Updated September 10, 2026

What you can observe safely

  • Record the symptom and model for the service request.

What to avoid

  • Do not climb onto the roof or enter the chimney.
  • Do not alter gas components, venting, or safety controls.
  • Do not use a test fire to diagnose the problem.

Possible causes to assess

  • Ignition or sensing problem
  • Model-specific control issue
  • Other conditions needing a qualified gas technician

A symptom cannot establish the cause remotely. An assessment of the complete system helps determine the appropriate repair.

Gas fireplace repair

A few common questions

Can this be diagnosed from a photo?

A photo can document a symptom and help prepare a visit. It cannot confirm concealed conditions or establish that a chimney or fuel-burning appliance is safe.

Sources & further reading

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