Garland MCO-GS-10E - Manual (Page 16)

16
APPEARANCE CAUSE
SMALL BLUE FLAME
Check for lack of gas from:
•
Clogged orifice filter
•
Clogged pilot filter
•
Low gas supply pressure
•
Pilot adjustment at minimum
LAZY YELLOW FLAME
Check for lack of air from:
•
Large orifice
•
Dirty lint screen, if used
•
Dirty primary air opening, if there is one
•
Pilot adjustment at minimum
WAVING BLUE FLAME
Check for :
•
Excessive draft at pilot locations
•
Recirculating products of combustion
NOISY LIFTING BLOWING FLAME
Check for:
•
High gas pressure
HARD SHARP FLAME
This flame is characteristic of manufactured gas
Check for:
•
High gas pressure
•
Orifice too small
SECTION 3: - A CCESS OF F UNCTIONAL C OMPONENTS