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www.usaprocom.com
25200159-01B
Problem Possible Cause Corrective Action
Burner(s) does not light
after ODS/pilot is lit
1. Burner orice is clogged.
2. Inlet gas pressure is too low.
3. Burner orice diameter is too
small.
1. Clean burner orifice (see
Care and Maintenance,
page 21).
2. Contact local gas supplier.
3. Replace gas train.
Delayed ignition of
burner(s).
1. Manifold pressure is too low.
2. Burner orice is clogged.
1. Contact local gas supplier.
2. Clean burner (see Care and
Maintenance, page 21).
Burner backring during
combustion
1. Burner orice is clogged or
damaged.
2. Burner is damaged.
3. Gas regulator is damaged.
1. Clean burner orifice (see
Care and Maintenance,
page 21).
2. Contact dealer or customer
service.
3. Replace gas train.
High yellow ame during
burner combustion
1. Not enough air.
2. Inlet gas pressure is too low.
3. Gas regulator is damaged.
1. Check burner for dirt and
debris. If found, clean burner
(see Care and Maintenance,
page 21).
2. Contact local gas supplier.
3. Replace gas train.
Slight smoke or odor dur-
ing initial operation
1. Residues from manufactur-
ing process.
1. Problem will stop after a few
hours of operation.
Heater produces un-
wanted odors.
1. Heater is burning vapors from
paint, hair spray, glues, etc.
See IMPORTANT statement,
page 23.
2. Gas leak. See Warning State-
ment at the top of page 23.
3 Low fuel supply.
1. Ventilate room. Stop using
odor causing products while
heater is running.
2. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 16).
3. Rell supply tank (Propane
models).
Gas odor during com-
bustion.
1. Foreign matter between
control valve and burner.
2. Gas leak. (See Warning
Statement at top of page 23).
1. Take apart gas tubing and
remove foreign matter.
2. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 16).
TROUBLESHOOTING
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