26
Heater produces a
whistling noise when
burner is lit.
Turning control knob to Hi
position when burner is cold.
Air in gas line.
Air passageways on heater
are blocked.
Dirty or partially clogged
burner orifice.
Turn control knob to LO position
and let warm up for a minute.
Operate burner until air is
removed from line. Have gas line
checked by local gas supplier.
Observe minimum installation
clearances
Clean or replace burner.
Heater produces a
clicking/ ticking noise
just after burner is lit or
shut off.
Metal is expanding while
heating or contracting while
cooling.
This is common with most
heaters. If noise is excessive,
contact qualified service
technician.
White powder residue
forming within burner
box or on adjacent walls
or furniture.
When heated, the vapors
from furniture polish, wax,
carpet cleaners, etc., turn
into white powder residue.
Turn heater off when using
furniture polish, wax, carpet
cleaner, or similar products.
Heater produces
unwanted odors.
Heater is burning vapors
from paint, hair spray, glues,
etc. See IMPORTANT
statement.
Gas leak. See Warning
Statement
Low fuel supply.
Ventilate room. Stop using odor
causing products while heater is
running.
Locate and correct all leaks,
Refill supply tank (Propane / LP
models).
Heater shuts off in use
(ODS operates).
Not enough fresh air is
available.
Low line pressure.
ODS/pilot is partially
clogged.
Open window and/or door for
ventilation.
Contact local gas supplier.
Clean ODS/pilot
Gas odor during
combustion
Gas leak. See Warning
Statement
Control valve is defective.
Foreign matters in heater
Locate and correct all leaks.
Contact customer service.
Remove foreign matters
Unexpected
moisture/condensation
noticed on windows.
Ambient moisture is too high,
Not enough ventilation
Use a dehumidifier,
R
efer to “Air for Combustion and
Ventilation R
equirements”
