Procom FBNSD400T-ZC Series Owner's Operation And Installation Manual page 27

Problem
H e a t e r p r o d u c e s a
whistling noise when
burner is lit.
Heater produces a click-
ing/ticking noise just after
burner is lit or shut off.
White powder residue
forming within burner
box or on adjacent walls
or furniture.
Heater shuts off in use
(ODS operates).
Gas odor exists even
when control knob is in
OFF position.
Moisture/condensation
noticed on windows.
200348-01C
TROUBLESHOOTING
Possible Cause
1. Turning control knob to high
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
from furniture polish, wax,
carpet cleaners, etc., turn
into white powder residue.
1. Not enough fresh air is avail-
able.
2. Low line pressure.
3. O D S / p i l o t i s p a r t i a l l y
clogged.
1. Gas leak. See Warning
Statement at top of page 24.
2. Control valve is defective.
1. Not enough combustion/
ventilation air.
www.usaprocom.com
Corrective Action
1. Turn control knob to low
position and let warm up for
a minute.
2. Operate burner until air is
removed from line. Have gas
line checked by local gas
supplier.
3 O b s e r v e m i n i m u m
i n s t a l l a t i o n c l e a r a n c e s
(Figure 5, page 12).
4 Clean burner (see Care and
Maintenance, page 22).
1. This is common with most
heaters. If noise is exces-
sive, contact qualified ser-
vice technician.
1. Turn heater off when using
furniture polish, wax, carpet
cleaner or similar products.
1. Open window and/or door for
ventilation.
2. Contact local gas supplier.
3. Clean ODS/pilot (see Care
and Maintenance, page 22).
1. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 16).
2. Contact customer service.
1. Refer to Air for Combus-
tion and Ventilation require-
ments, page 7.
27