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SYMPTOM PROBLEM TEST SOLUTION
Pilot goes out while
standing; Main burner is in
‘OFF’ position.
Gas piping is undersized. - Turn on all gas appliances and see if pilot flame
flutters, diminishes or extinguishes, especially when
main burner ignites. Monitor appliance supply working
pressure.
- Check if supply piping size is to code. Correct all
undersized piping.
Flames are consistently
too large or too small.
Carboning occurs.
Appliance is over-fired or
underfired.
- 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 as described on the chart below. Check
that main burner is operating on ‘HI’.
- Outlet pressure can be checked the same as above
using screw (B). Gauge should read as described on
the chart below. Check that main burner is operating
on ‘HI’.
- AFTER TAKING PRESSURE READINGS, BE SURE TO
TURN SCREWS CLOCKWISE FIRMLY TO RESEAL.
DO NOT OVER TORQUE.
- Leak test with a soap and water solution.
Carbon is being deposited
on logs or combustion
chamber surfaces.
Air shutter has become
blocked.
- Ensure air shutter opening is free of lint or other
obstructions.
Flame is impinging on the
logs or combustion chamber.
- 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.
White / grey film forms. Sulphur from fuel is being
deposited on glass, logs
or combustion chamber
surfaces.
- Clean the glass with a recommended gas appliance
glass cleaner.
- DO NOT CLEAN GLASS WHEN HOT.
- If deposits are not cleaned off regularly, the glass may
become permanently marked.
Remote wall switch is
in ’OFF’ position; main
burner comes on when
gas knob is turned to ‘ON’
position.
Wall switch is mounted up-
side down.
- Reverse.
Remote wall switch is
grounding.
- Replace.
Remote wall switch wire is
grounding.
- Check for ground (short); repair ground or replace wire.
Faulty valve.
- Replace.
P
I
L
O
T
Pressure
Inlet
Outlet
Natural Gas
(inches)
Natural Gas
(millibars)
Propane
(inches)
Propane
(millibars)
*13"
(MIN. 4.5”)
3.5"
13"
(MIN. 11")
10"
17.4mb
(MIN. 11.2mb)
8.7mb
32.4mb
(MIN. 27.4mb)
24.9mb
W415-1796 / B / 08.01.18
EN
32
troubleshooting
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