HVACopediaMajestic · Gas fireplace troubleshooting
Glass sooting
What is going on
Black deposits on the glass or logs.
Likely causes
- Flame touching the logs.
Check in this order
- Re-set the log set as shown in the instructions
- Check the injector and air intake area for blockage or lint and clean it
- Check gas supply
Applies to: DVBL7 series
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Source: Majestic DVBL7 Series Installation and Operating Instructions, p. 47. 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.