Napoleon GDS 28-N Installation And Operation Instructions Manual page 22

22
SYMPTOM
Main burner goes out;
pilot goes out.
Exhaust fumes
smelled in room,
headaches.
Carbon is being de-
posited on glass,
logs or combustion
chamber surfaces.
Door sticking.
MODEL GDS28 ONLY:
Main burner flame is
a blue, lazy, transpar-
ent flame.
White / grey film
forms.
W415-0153 / A / 10.29.01
PROBLEM
REFER TO "MAIN BURNER GOES OUT; PILOT STAYS ON"
Vent re-circulating
(MODEL GDS28 ONLY)
Thermocouple shorting or
faulty.
Fireplace is spilling.
Air shutter has become
blocked
Flame is impinging on the
logs or combustion chamber.
Dirt / dust adheres to the
hinges; is heated and burns
causing sticking.
Blockage in vent.
Incorrect installation.
Sulphur from fuel is being de-
posited on glass, logs or com-
bustion chamber surfaces.
TEST SOLUTION
- check joint seals and installation.
- loosen and tighten thermocouple
- clean thermocouple and valve connection.
- replace thermocouple.
- replace valve.
- check all seals.
- ensure air shutter opening is free of lint or other obstruc-
tions.
- check that the logs are correctly positioned.
- open air shutter to increase the primary air.
- check the input rate: check the manifold pressure and orifice
size as specified by the rating plate values.
- check that the door gasketing is not broken or missing and
that the seal is tight.
- check that both 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.
- when heating with propane, ensure that the screen frame is
secured as far to the back of the fireplace as possible.
- lift door from its hinges. Lubricate with high-temp dry graph-
ite only. Replace.
NOTE: Due to the high temperatures that the hinges experi-
ence, wet lubricants such as oil and WD40 will cause the hinge
to seize and are therefore not suitable.
- remove blockage. In really cold conditions, ice buildup may
occur on the terminal and should be removed as required.
- refer to Figure 20 to ensure correct location of storm collars
- clean the glass with a recommended gas fireplace glass
cleaner. DO NOT CLEAN GLASS WHEN HOT.
If deposits are not cleaned off regularly, the glass may be-
come permanently marked.