Napoleon GD34-1NT Installation And Operating Instructions Manual page 30

30
SYMPTOM
Main burner goes
Refer to "MAIN BURNER GOES OUT; PILOT STAYS ON"
out; pilot goes
Vent is blocked
out.
Vent is re-circulating
4 " f l e x i b l e v e n t h a s
become disconnected from
fi replace.
Excessive air fl ow around
the pilot burner.
F l a m e s a r e Unit is over-fi red or under-
c o n s i s t e n t l y fi red.
too large or too
small. Carboning
occurs.
Carbon is being Air shutter has become
d e p o s i t e d o n blocked
g l a s s , l o g s o r
Flame is impinging on
c o m b u s t i o n
the logs or combustion
c h a m b e r
chamber.
surfaces.
White / grey fi lm
forms.
Exhaust fumes Fireplace is spilling.
smelled in room,
headaches.
Flames are very
aggressive.
M a i n b u r n e r Blockage in vent.
flame is a blue,
lazy, transparent
Incorrect installation.
fl ame.
R e m o t e w a l l Wall switch is mounted
switch is in "OFF" upside down
p o s i t i o n ; m a i n
Remote wall switch is
burner comes on
grounding.
when gas knob
Remote wall switch wire is
is turned to "ON"
grounding.
position.
Faulty valve.
W415-0663 / B / 02.21.08
PROBLEM
Sulphur from fuel is being
deposited on glass, logs
or combustion chamber
surfaces.
Door is ajar
TEST SOLUTION
- check for vent blockage.
- check joint seals and installation.
- re-attach to fi replace.
- rotate the restrictor plate into position.
- check pressure readings:
Inlet pressure can be checked by turning screw (A) counter-clockwise
2 or 3 turns and then placing pressure gauge tubing over the test point.
Gauge should read 7" (minimum 4.5") water column for natural gas or
13" (11" minimum) water column for propane. Check that main burner
is operating on "HI".
Outlet pressure can be checked the same as above using screw (B).
Gauge should read 3.5" water column for natural gas or 10" water column
for propane. Check that main burner is operating on "HI".
AFTER TAKING PRESSURE READINGS, BE SURE TO TURN SCREWS
CLOCKWISE FIRMLY TO RESEAL. DO NOT OVERTORQUE.
Leak test with a soap and water solution.
- ensure air shutter opening is free of lint or other obstructions.
- check that the logs are correctly positioned.
- open air shutter to increase the primary air.
- check the input rate: check the manifold pressure and orifi ce size as
specifi ed by the rating plate values.
- check that the door gasketing is not broken or missing and that the
seal is tight.
- check that both 4" and 7" vent liners are free of holes and well sealed
at all joints.
- check that minimum rise per foot has been adhered to for any horizontal
venting.
- clean the glass with a gas fi replace glass cleaner. DO NOT CLEAN
GLASS WHEN HOT.
If deposits are not cleaned off regularly, the glass may become
permanently marked.
- check door seal and relief fl ap seal.
- check for chimney blockage
- check that chimney is installed to building code.
- room is in negative pressure; increase fresh air supply.
- tighten screws holding door in place
- Restrict vent exit. See "RESTICTING VERTICAL VENTS".
- remove blockage. In really cold conditions, ice buildup may occur on
the terminal and should be removed as required.
- refer to Figure 26 to ensure correct location of storm collars.
- reverse.
- replace.
- check for ground (short); repair ground or replace wire.
- replace.