Superior UNVENTED GAS LOG ROOM HEATERS VFGL-28VSP-4 SERIES - Manual (Page 11)

NOTE: DIAGRAMS & ILLUSTRATION NOT TO SCALE.
11
1. When igniter button is
pressed, there is no spark
at ODS/pilot.
2. Heater produces unwanted
odors.
3. Heater shuts off in use
(ODS operates).
4. Gas odor even when control
knob is in “OFF” position.
5. When igniter button is
pressed, there is spark at
ODS/pilot, but no ignition.
6. ODS/pilot lights, but flame
goes out when control knob
is released.
7. Burner does not light after
ODS/pilot is lit.
8. Delayed ignition of burner.
9. Burner backfiring during
combustion.
10. Slight smoke or odor during
initial operation.
11. Heater produces a whistling
noise when burner is lit.
Replace igniter.
Replace igniter.
Reconnect igniter cable.
Free igniter cable if pinched by any metal or tubing. Keep igniter cable dry.
Tighten nut.
Replace igniter cable.
Replace piezo igniter.
Ventilate room. Stop using odor-causing products while fireplace is running.
Locate and correct all leaks.
Open window and/or door for ventilation.
Contact local gas company.
Clean ODS/pilot.
Locate and correct all leaks (see Checking Gas Connections, page 6).
Replace control valve.
Turn on gas supply or open manual shut-off valve.
Turn control knob to pilot position.
Press in control knob while in pilot position.
Continue holding down control knob. Repeat igniting operation until air is
removed.
Replace ODS/pilot assembly or get it serviced.
Replace gas regulator.
Press in control knob fully.
After ODS/pilot lights, keep control knob pressed in 30 seconds.
Fully open manual shut-off valve.
Hand tighten until snug, then tighten ¹⁄₄ turn more.
1). Contact local gas company.
2). Replace ODS/pilot assembly or get pilot serviced.
Replace thermocouple.
Replace control valve.
Clean burner or replace burner orifice.
Replace burner orifice.
Contact local gas company.
Contact local gas company.
Clean burner or replace burner orifice.
Clean burner or replace burner orifice.
Replace burner.
Replace gas regulator.
Problem will stop after a few hours of operation. Superior recommends
running the heater with the excess ventilation for the first few hours.
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
company.
Clean burner or replace burner orifice.
A. Igniter electrode positioned wrong.
B. Igniter electrode broken.
C. Igniter electrode not connected to igniter cable.
D. Igniter cable pinched or wet.
E. Piezo igniter nut is loose.
F. Broken igniter cable.
G. Bad piezo igniter.
A. Heater burning vapors from paint, hair spray, glues, etc.
B. Gas leak. See Warning statement on the front page.
A. Not enough fresh air is available.
B. Low line pressure.
C. ODS/pilot is partially clogged.
A. Gas leak. See Warning statement on the front page.
B. Control valve defective.
A. Gas supply turned off or manual shut-off valve closed.
B. Control knob not in “PILOT” position.
C. Control knob not pressed in while in “PILOT” position.
D. Air in gas lines when installed.
E. ODS/pilot is clogged.
F. Gas regulator setting is not correct.
A. Control knob not fully pressed in.
B. Control knob not pressed in long enough.
C. Manual shut-off valve not fully open.
D. Thermocouple connection loose at control valve.
E. Pilot flame not touching thermocouple, which allows
thermocouple to cool, causing pilot flame to go out. This
problem could be caused by one or both of the following:
1). Low gas pressure
2). Dirty or partially clogged ODS/pilot
F. Thermocouple damaged.
G. Control valve damaged.
A. Burner orifice is clogged.
B. Burner orifice diameter is too small.
C. Inlet gas pressure is too low.
A. Manifold pressure is too low.
B. Burner orifice is clogged.
A. Burner orifice is clogged or damaged.
B. Burner damaged.
C. Gas regulator defective.
A. Vapors from paint or curing process of logs.
A. Turning control knob to “HI” position when burner is cold.
B. Air in gas line.
C. Dirty or partially clogged burner orifice.
OBSERVED PROBLEM POSSIBLE CAUSE REMEDY
TROUBLESHOOTING GUIDE FOR VENT-FREE GAS PRODUCTS