Procom ML100HBAHR Owner's Operation And Installation Manual page 16

OBSERVED PROBLEM
B u r n e r ( s ) d o e s n o t l i g h t a f t e r
ODS/pilot is lit.
Delayed ignition of burner(s).
Burner backfiring during combustion 1. Burner orifice is clogged or
Yellow flame during burner
combustion..
Slight smoke or odor
initial operation.
Heater produces a whistling noise
when burner is lit.
Heater produces clicking/ticking
noise just after burner is lit or
shut off.
White powder residue forming
within burner box or on adjacent
walls or furniture.
TROUBLESHOOTING
Continued
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.
damaged.
2. Burner is damaged.
3. Gas regulator is defective
1. Not enough air.
2. Gas regulator is defective.
3. Inlet gas pressure is too low.
during 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
are blocked.
4. Dirty or partially clogged burner
orifice.
1. Metal is expanding while heating
or contracting while cooling.
1. When heated, the vapors
furniture polish, wax, carpet
cleaners,
powder residue.
from
etc. turn into white
16
REMEDY
1. Clean burner orifice (see Cleaning
and Maintenance, Page 14) or
replace burner orifice.
2. Replace burner orifice.
3. Contact local natural gas company.
1. Contact local natural gas company.
2. Clean burner (see Cleaning and
Maintenance, Page 14) or replace
burner orifice
1. Clean burner orifice (see Cleaning
and Maintenance, Page 14) or
replace.
2. Contact Dealer or PRO-COM.
3. Replace gas regulator
1. Check burner for dirt and debris. If
found, clean burner (see Cleaning
and Maintenance Page 14).
2. Replace gas regulator.
3. Contact local propane/PL gas
company.
1. Problem will stop after a few
hours of operation.
1. Turn control knob to LO position
and let warm up for a minute.
2. Operate burner until air is removed
from line. Have gas line checked
by local propane/PL gas company.
3. Observe minimum installation
clearances (Figure 4, p7).
4. Clean burner (see Cleaning and
maintenance Page 14) or replace
burner orifice.
1. This is common with most
heaters. If noise is excessive,
contact qualified service person.
1. Turn heater off
furniture polish, wax, carpet
cleaner, or similar products.
when using