Troubleshooting - Napoleon GT8P Installation And Operation Manual

troubleshooting

12.0 troubleshooting
EN
WARNING
!
• Always light the pilot whether for the first time or if the gas supply has run out, with the glass door open or
removed.
• Turn off the gas and electrical power before servicing the appliance.
• Appliance may be hot, do not service until appliance has cooled.
• Do not use abrasive cleaners.
SYMPTOM
Electrode sparks, burner
ignites, electrode
continues to spark for
complete 7 seconds,
burner shuts down.
Main burner flame is a
blue, lazy, transparent
flame.
Flame length
consistently too large or
too small. Carboning
occurs.
Carbon is being
deposited on glass,
logs or combustion
chamber surfaces.
White / grey film forms.
Exhaust fumes smelled
in room, headaches.
No gas to the main
burner; switch is on.
Burner will not light,
ignitor sparks.
38
W415-1367 / B / 01.09.19
PROBLEM
Hot and neutral wires are
reversed at control module.
Sensor / flame not
connecting
Blockage in vent.
Unit is over-fired or under-
fired.
A
O S
MANUAL SHUT-OFF
(SHOWN IN OFF POSITION)
Air shutter has become
blocked.
Flame is impinging on the
combustion chamber.
Sulphur being deposited on
glass, logs or combustion
chamber surfaces.
Fireplace is spilling.
Switch is defective.
Burner orifice is blocked.
Control valve faulty.
Faulty valve.
No gas at the burner.
Out of propane gas.
TEST SOLUTION
- Connect the hot wire to the black wire. Connect the neutral
wire to the white wire.
- Raise electrode / sensor up into flame.
- Remove blockage. In extremely cold conditions, ice buildup
may occur on the terminal and should be removed as required.
To minimize this from happening again, it is recommended that
the vent lengths that pass through unheated spaces (attics,
garages, crawl spaces) be wrapped with an insulated mylar
sleeve. Prevent sleeve from sagging. Contact your local
authorized dealer for more information.
- Check pressure readings
- Outlet pressure can be checked by removing cap (A) and
replacing it with a 1/8" (3.2mm) NPT barb fitting. Next, place
pressure gauge tubing over the fitting. Gauge should read 3.5"
W.C. (8.7mb) for natural gas or 10.0" W.C. (24.9mb) for propane.
AFTER TAKING PRESSURE READINGS, BE SURE TO REPLACE
CAP TO RESEAL. DO NOT OVER-TORQUE.
- Leak test with a soap and water solution.
- Ensure air shutter opening is free of lint or other
obstructions.
- 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 3" (76.2mm) and 5" (127mm) vent liners are free
of holes and well sealed at all joints.
- Check that the minimum rise per foot has been adhered to for any
horizontal venting.
- Clean the glass with a gas fireplace glass cleaner. DO NOT
CLEAN GLASS WHEN HOT. If deposits are not cleaned off
regularly, the glass may become permanently marked.
- Check door seal.
- Check pressure relief device.
- Check for chimney blockage.
- Ensure that the paint curing process is complete.
- Connect a jumper wire across the wall switch terminals; if
main burner lights, replace switch / thermostat.
- Remove stoppage in orifice.
- Replace.
- Replace.
- Check that the manual valve is turned on.
- Replace the valve.
- Fill the tank.