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Napoleon Gas Fireplace: Pilot will not light (service flowchart)

Updated · by Aurora Star Tech Inc.

Pilot will not light (service flowchart) on a Napoleon gas fireplace: Step-by-step check when the pilot will not ignite. Same flowchart for direct vent, natural vent and vent-free units.

Homeowner with a gas fireplace problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Applies to: Napoleon gas fireplaces - direct vent, natural vent and vent-free (general service manual)

Common causes of pilot will not light (service flowchart)

  • No spark / loose electrode wire
  • Low supply pressure
  • Pilot adjustment screw closed
  • Electrode gap too wide
  • Blocked pilot orifice or tube
  • Loose fittings or kinked/leaking pilot tube
  • Blocked pilot primary air opening
  • Damaged electrode

How to fix pilot will not light (service flowchart): step by step

  1. Press the igniter and confirm a spark at the electrode; if none, secure or replace the electrode wire connection.
  2. Test the inline gas pressure to confirm enough supply pressure for ignition.
  3. Make sure the pilot adjustment screw has not been turned fully closed; adjust as needed.
  4. Set the electrode-to-pilot-hood gap to no more than 1/8".
  5. Remove the pilot tube and orifice and clean out any packed debris.
  6. Tighten the pilot tube fittings; WARNING: leak-test after.
  7. Un-kink the pilot tube or replace it if leaking.
  8. Clear the primary air opening on the pilot assembly.
  9. Replace the electrode if chipped or broken.
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

If the unit shows an error code, look it up: Napoleon Gas Fireplace codes

Models

GD70NT-SGD70PT-S

Source: Napoleon (Wolf Steel) Service Manual W415-0118, Part 1-3 Troubleshooting, Pilot Not Lighting flowcharts, p.1 / p.10 / p.19. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Emergency HVAC Service

647-657-2977