Procom PCNSD18T Manual page 26

Problem
Burner does not light after
ODS/pilot is lit.
Delayed ignition of
burner.
Burner backfiring during
combustion.
Yellow flame during burn-
er combustion.
Slight smoke or odor
during initial operation.
Gas odor during com-
bustion.
Heater produces un-
wanted odors.
26
TROUBLESHOOTING
Possible Cause
1. Burner orifice is clogged.
2. Inlet gas pressure is too low.
3. Burner orifice diameter is too
small.
1. Manifold pressure is too low.
2. Burner orifice is clogged.
1. Burner orifice is clogged or
damaged.
2. Burner is damaged.
3. Gas regulator is damaged.
1. Not enough air.
2. Inlet gas pressure is too low.
3. Gas regulator is damaged.
1. Residues from manufactur-
ing process.
1. Foreign matter between
control valve and burner.
2. Gas leak. (See Warning
Statement at top of page 24).
1. Heater is burning vapors from
paint, hair spray, glues, etc.
See IMPORTANT statement,
page 24.
2. Gas leak. See Warning State-
ment at the top of page 24.
3 Low fuel supply.
www.usaprocom.com
Corrective Action
1. Clean burner orifice (see
Care and Maintenance, page
22).
2. Contact local gas supplier.
3. Replace heater chassis.
1. Contact local gas supplier.
2. Clean burner (see Care and
Maintenance, page 22).
1. Clean burner orifice (see
Care and Maintenance, page
22).
2. Replace burner.
3. Replace heater chassis.
1. Check burner for dirt and debris.
If found, clean burner (see Care
and Maintenance, page 22).
2. Contact local gas supplier.
3. Replace heater chassis
1. Problem will stop after a few
hours of operation.
1. Contact a qualified service tech-
nician to remove foreign matter.
2. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 17).
1. Open a window to ventilate
room. Stop using odor caus-
ing products while heater is
running.
2. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 17).
3. Refill supply tank (Propane
models).
200239-01C