- 20 -
6
Burner backfiring during
combustion.
1. Burner orifice is clogged,
2. Burner is damaged.
3. Burner is not correctly aligned
4. Gas regulator or/and appliance
regulator are defective.
1. Clean burner or replace burner orifice,
2. Contact customer service.
3. Contact customer service.
4. Contact customer service.
7
Yellow flame during burner
combustion.
1. No enough air.
2. Heater bottom blocked
3. Gas regulator is defective.
4. Inlet gas pressure is too low.
1. Check burner for dirt and debris. If
found, clean burner.
2. Clean heater bottom from any flagging
materials,
3. Replace gas regulator.
4. Contact local gas supplier.
8
Slight smoke or odor during initial
operation.
1. Residues from manufacturing
processes.
1. Problem will stop after a few hours of
operation..
9
Heater produces a
whistling noise
when burner is lit.
1. Turning control knob to Hi. 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. Turn control knob to LO 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. Observe minimum installation
clearances
4. Clean or replace burner.
10
Heater produces a clicking/
ticking noise just after burner is lit
or shut off.
1. Metal is expanding while heating or
contracting while cooling.
1. This is common with most heaters. If
noise is excessive, contact qualified
service technician.
11
White powder residue forming
within burner box or on adjacent
walls or furniture.
1. When heated, the vapors from
furniture polish, wax, carpet cleaners,
etc., turn into white powder residue.
1. Turn heater off when using furniture
polish, wax, carpet cleaner, or similar
products.
12
Heater produces unwanted
odors.
1. Heater is burning vapors from
paint, hair spray, glues, etc. See
IMPORTANT statement.
2. Gas leak. See Warning Statement
3. Low fuel supply.
1. Ventilate room. Stop using odor causing
products while heater is running.
2. Locate and correct all leaks,
3. Refill supply tank (Propane / LP
models).
13
Heater shuts off in use
(ODS operates).
1. Not enough fresh air is available.
2. Low line pressure.
3. ODS/pilot is partially clogged.
1. Open window and/or door for
ventilation.
2. Contact local gas supplier.
3. Clean ODS/pilot
14
Gas odor during combustion
1. Gas leak. See Warning Statement
2. Control valve is defective.
3. Foreign matters in heater
1. Locate and correct all leaks.
2. Contact customer service.
3. Remove foreign matters
15
Unexpected
moisture/condensation noticed
on windows.
1. Ambient moisture is too high,
2. No enough ventilation
1. Use a dehumidifier,
2. Refer to “Air for combustion and
Ventilation requirements”
Summary of Contents for WDFT060-VF-IR
Page 21: ...21 ILLUSTRATED PARTS Models WDFT060 VF IR...
Page 23: ...23 ILLUSTRATED PARTS Model WDFT100 VF IR...
Page 25: ...25 ILLUSTRATED PARTS Model WDFT250 VF IR...
Page 27: ...27 ILLUSTRATED PARTS Models WNT060 VF IR WLT060 VF IR...
Page 29: ...29 ILLUSTRATED PARTS Models WNT100 VF IR WLT100 VF IR...
Page 31: ...31 ILLUSTRATED PARTS Models WNT250 VF IR WLT250 VF IR...
