Monessen Hearth BTU/Hr - Manual (Page 24)

24 49D0090 49D0090 25
TROUBLESHOOTING
REMEDY
1. Clean burner (see “Cleaning and Mainte-
nance,” page 26) or replace burner orifice
2. Replace burner orifice
3. Contact local gas company
1. Contact local gas company
2. Clean burner (see “Cleaning and Mainte-
nance,” page 26) or replace burner orifice
1. Clean burner (see “Cleaning and Mainte-
nance,” page 26) or replace burner orifice
2. Replace burner
3. Replace gas regulator
1. Check burner for dirt and debris. If found,
clean burner (see “Cleaning and Mainte-
nance,”
page 26)
2. Replace gas regulator
1. Problem will stop after a few hours of opera-
tion
1. Turn control knob to LO position andlet
warm up for a minute
2. Operate burner until air is removed from
line. Have gas line checked by local gas
company
3. Observe minimum installation clearances
(see Figure 8, page 12)
4. Clean burner (see “Cleaning and Mainte-
nance,” page 26) or replace burner orifice
1. Turn heater off when using furniture polish,
wax, carpet cleaners, or similar products
POSSIBLE CAUSE
1. Burner orifice is clogged
2. Burner orifice diameter is too small
3. Inlet gas pressure is too low
1. Manifold pressure is too low
2. Burner orifice is clogged
1. Burner orifice is clogged or damaged
2. Burner damaged
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
1. Residues from manufacturing processes
1. Turning control knob to HI position when
burner is cold
2. Air in gas line
3. Air passageways on heater blocked
4. Dirty or partially clogged burner orifice
1. When heated, vapors from furniture
polish, wax, carpet cleaners, etc. turn into
white powder residue
OBSERVED
PROBLEM
Burner does not light
after ODS/pilot is lit
Delayed ignition of
burner
Burner backfiring
during combustion
Yellow flame during
burner combustion
Slight smoke or odor
during initial operation
Heater produces a
whistling noise when
burner is lit
White powder residue
forming within burner
box or on adjacent
walls or furniture
Continued
Continued