HVACopediaMajestic · Gas fireplace troubleshooting
Signature Command: pilot lit but main burner will not light
What is going on
Pilot is established and the main burner does not open.
Likely causes
- Sensor on the pilot not in the flame, so the control never proves it.
Check in this order
- Adjust the sensor position in the flame
- Replace the pilot assembly if the sensor cannot be positioned
Applies to: 300DVBLN/PSC7, 400DVBLN/PSC7, 500DVBLN/PSC7 (Signature Command)
More gas fireplace guides
Take it to the job
All guides, error codes and tips work offline in the HVACopedia app.
Source: Majestic DVBL7 Series Installation and Operating Instructions, p. 48. Written in our own words; check the manual for your exact model.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.