Martin Fireplaces BV4536 - Manual (Page 35)

34
1.
Glass Soots
A.
Flame impingement
on logs
Install log set per the 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. Reduce offset and/or raise termination.
B. Too many elbows Reduce number of elbows
C. Vent height too short Raise vent
D. Vent too close to
roof line
Raise vent
E. Blockage is
restricting venting
capacity
Remove blockage
F. Incorrect vent type Replace with proper B-Vent
G. Venting has been
constructed with too
large or too small
vent.
Replace with proper size
H. More than one
appliance is using
one venting system.
Construct a single venting system for each appliance
3.
Poor draft due to
termination cap.
A. Cap obstructed by a
decorative enclosure.
Remove or open enclosure or raise cap above it.
B. Cap is crushed,
damaged or missing.
Replace cap
4.
Poor draft due to
ext. environment.
A. Buildings, trees, roof
lines interfering with
venting.
Maintain proper clearances and heights to external
obstructions; Beware of overhangs.
B. Wind Use cap designed for high winds; raise venting height.
C. Vent exposed to cold
chase.
Insulate chase.
D. Vent exposed to cold
weather.
Enclose vent within home.
5.
Poor draft due to
internal
environment.
A. Negative air pressure. 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
prematurely.
A. Blockage or
restriction in venting.
Check for and remove blockage and light pilot following
lighting instructions.
B. Damper system
closed.
Open damper system and light pilot following lighting
instructions.
If damper system will not operate, call contractor.
GENERAL TROUBLESHOOTING: