Monessen Hearth B-VENT SBV500 - Manual (Page 34)

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BBV, SBV Series Natural Vent Gas Fireplaces TROUBLESHOOTING
GENERAL TROUBLESHOOTING
SYMPTOM
1. Glass soots.
2. Poor draft due
to venting.
3. Poor draft due
to termination
cap.
4. Poor draft due
to ext. environ-
ment.
5. Poor draft due
to internal envi-
ronment.
6. Unit shuts down
prematurely.
POSSIBLE CAUSE
A. Flame impingement on
logs.
A. Too much offset.
B. Too many elbows.
C. Vent height too short.
D. Vent too close to roof
line.
E. Blockage is rstricting
venting capacity.
F. Incorrect vent type.
G. Venting has been con-
structed with too large
or too small vent.
H. More than one appli-
ance is using one vent-
ing system.
A. Cap obstructed by a
decorative enclosure.
B. Cap is crushed,
damged or missing.
A. Buildings, trees, roof
lines interfering with
venting.
B. Wind
C. Vent exposed to cold
chase.
D. Vent exposed to cold
weather.
A. Negative air pressure.
A. Blockage or restriction
in venting.
ACTION
A. Install log set per instructions.
Inspect the injector and air intake area.
Make sure this area does not have any blockage from debris
and clean.
Check gas supply.
A. Reduce offset and/or raise termination.
If thermocouple is producing more than 15m B, replace faulty
valve.
B. Reduce number of elbows.
C. Raise vent.
D. Raise vent.
E. Remove blockage.
F. Replace with proper B-vent.
G. Replace with proper size.
H. Construct a single venting system for each appliance.
A. Remove or open enclosure or raise cap above it.
B. Replace cap.
A. Maintain proper clearances and heights to external obstruc-
tions; Be aware of overhangs.
B. Use cap designed for high winds; raise venting height.
C. Insulate chase.
D. Enclose vent within home.
A. To test for negative air pressure, open a window in the room
with the fireplace to see if the unit starts drafting correctly.
Make sure the damper system is in the open position.
A. Check for and remove blockage and light pilot following light-
ing instructions.