Monessen Hearth Natural Vent Gas Fireplace SBV400 - Manual (Page 38)

38 62D4036
TROUBLESHOOTING
GENERAL TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE ACTION
1. Glass Soots A. Flame impingement on logs 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
2. Poor draft due
to venting
A. Too much offset.
B. Too many elbows
C. Vent height too short
D. Vent too close to roof line
E. Blockage is restricting venting
capacity
F. Incorrect vent type
G. Venting has been constructed with
too large or too small vent.
H. More than one appliance is using
one venting system.
A. Reduce offset and/or raise termination.B.
If thermocouple is producing more than 15 mV, 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
3. Poor draft due
to termination
cap.
A. Cap obstructed by a decorative
enclosure.
B. Cap is crushed, damaged or miss-
ing.
A. Remove or open enclosure or raise cap above it..
B. Replace cap
4. Poor draft due
to ext. environ-
ment.
A. Buildings, trees, roof lines inter-
fering with venting.
B. Wind
C. Vent exposed to cold chase.
D. Vent exposed to cold weather.
A. Maintain proper clearances and heights to external obstructions;
Beware of overhangs.
B. Use cap designed for high winds; raise venting height.
C. Insulate chase.
D. Enclose vent within home.
5. Poor draft due
to internal
environment.n
A. Negative air pressure. 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.
6. Unit shuts
down prema-
turely.
A. Blockage or restriction in venting. A. Check for and remove blockage and light pilot following light-
ing instructions.