How Prometheus Diagnoses It
A technician checks pilot flame shape, sensor contact, thermocouple or thermopile output, burner ignition, and gas valve response before recommending a repair.
Diagnostic Guide
Pilot Light Won't Stay Lit
Common Symptoms
Pilot goes out after releasing the knob
Repeated re-lighting required
Weak or flickering pilot flame
Burner will not ignite at all
Possible Causes
Dust or debris blocking the pilot tube
Failing thermocouple or thermopile
Pilot flame not making contact with the sensor
Faulty gas valve
Safety Guidance
Reviewed 2026-07-27If you smell gas, stop trying to relight the fireplace, shut off the appliance if it is safe to do so, ventilate the area, and call for professional help before using it again.
Real Work. Visible Proof.
Recent Projects.
01BeforeAfter
Idaho Falls· Napoleon
Napoleon Gas Fireplace Repair in Idaho Falls
Professional fireplace diagnosis, repair and restoration.
Read the Case StudyCommon Questions
Clear AnswersBefore You Book.
Questions homeowners ask most often about fireplace repair, inspection, service and replacement.
01Why will my pilot light not stay lit?+
A pilot that will not stay lit can point to a dirty pilot assembly, weak sensor output, or a valve/control issue. A diagnostic visit checks the cause before parts are replaced.
Annual Fireplace Inspections
Book Beforethe First Cold Night.
Do not discover a fireplace problem when temperatures drop. Schedule inspection, service or repair before the seasonal rush.
Southeast Idaho
Repair. Restore. Protect.