MHSC BBV400 Installation And Operating Instructions Manual page 34

BBV, SBV Series Natural Vent Gas Fireplaces
GENERAL TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE
1. Glass soots. A. Flame impingement on
A. Too much offset.
2. Poor draft due
to venting.
B. Too many elbows.
C. Vent height too short.
D. Vent too close to roof
E. Blockage is rstricting
F. Incorrect vent type.
G. Venting has been con-
H. More than one appli-
3. Poor draft due
A. Cap obstructed by a
to termination
cap.
B. Cap is crushed,
4. Poor draft due A. Buildings, trees, roof
to ext. environ-
ment.
B. Wind
C. Vent exposed to cold
D. Vent exposed to cold
A. Negative air pressure.
5. Poor draft due
to internal envi-
ronment.
6. Unit shuts down
A. Blockage or restriction
prematurely.
34
logs.
line.
venting capacity.
structed with too large
or too small vent.
ance is using one vent-
ing system.
decorative enclosure.
damged or missing.
lines interfering with
venting.
chase.
weather.
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.
TROUBLESHOOTING
62D4036