Trouble Shooting Guide - Napoleon GD40-N Installation And Operation Instructions Manual

TROUBLE SHOOTING GUIDE

B
EFORE ATTEMPTING TO TROUBLESHOOT
SYMPTOM
Main burner flame Blockage in vent.
is a blue, lazy,
t r a n s p a r e n t
Incorrect installation.
flame.
Flames are con- Unit is over-fired or under-
sistently too large fired.
or too small.
Carboning occurs.
Carbon is being Air shutter has become
deposited on blocked
glass, logs or
Flame is impinging on the
c o m b u s t i o n
logs or combustion cham-
chamber sur-
ber.
faces.
White / grey film Sulphur from fuel is being
forms. deposited on glass, logs or
combustion chamber sur-
faces.
Exhaust fumes Fireplace is spilling.
smelled in room,
headaches.
Pilot goes out System is not correctly
when the gas knob purged.
is released.
Out of propane gas.
The gas valve has
Pilot flame is not large
an interlock de-
enough
vice which will not
allow the pilot
Pilot flame is not engulfing
burner to be lit
the thermocouple.
until the thermo-
Thermocouple shorting /
couple has
faulty.
cooled. Allow ap-
proximately 60
seconds for the
Faulty valve.
thermocouple to
cool.
,
PURGE YOUR UNIT AND INITIALLY LIGHT THE PILOT AND THE MAIN BURNER WITH THE GLASS DOOR REMOVED
PROBLEM
- remove blockage. In really cold conditions, ice buildup may occur
on the terminal and should be removed as required.
- refer to Figure 34 to ensure correct location of storm collars.
- check pressure readings:
Inlet pressure can be checked by turning screw (A) counter-clock-
wise 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".
B A
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 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 4" and 7" vent liners are free of holes and well
sealed at all joints.
- check that minimum rise per foor has been adhered to for any
horizontal venting.
- 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 become per-
manently marked.
- check door seal and relief flap seal.
- check for chimney blockage
- check that chimney is installed to building code.
- room is in negative pressure; increase fresh air supply.
- purge the gas line with a glass door removed.
- fill the tank.
- turn up the pilot flame.
- gently twist the pilot head to improve the flame pattern around the
thermocouple.
- loosen and tighten thermocouple.
- clean thermocouple and valve connection.
- replace thermocouple.
- replace valve.
- replace.
TEST SOLUTION
29
.
WS-415-091 / 06.26.00