Procom FBNSD400T-ZC Series Owner's Operation And Installation Manual page 26

Problem
Burner does not light after
ODS/pilot is lit.
Delayed ignition of
burner.
Burner backfiring during
combustion.
High yellow flame during
burner combustion.
Slight smoke or odor
during initial operation.
Gas odor during com-
bustion.
H e a t e r p r o d u c e s
unwanted 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 defective.
1. Residues from manufacturing
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
Statement at the top of page
24.
3. Low fuel supply.
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Corrective Action
1. Clean burner orifice (see
Care and Maintenance,
page 22).
2. Contact local gas supplier.
3. Replace gas train.
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. Contact customer service.
3. Replace gas train.
1. Check burner for dirt and
debris. If found, clean burner
(see Care and Maintenance,
page 22).
2. Contact local gas supplier.
3. Replace gas train.
1. Problem will stop after a few
hours of operation.
1. Contact a qualified service
technician to remove foreign
matter.
2. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 16).
1. Open a window to ventilate
room. Stop using odor
causing products while
heater is running.
2. L o c a t e a n d c o r r e c t a l l
leaks (see Checking Gas
Connections, page 16).
3. Refill supply tank (Propane
models).
200348-01C