Fire Deck
Service Manual
PG
18
OF
44
M0011.09 APRIL 2019
An ongoing program of product improvement may
require us to change specifications without notice.
WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
TOLL FREE
800.988.8103
TEL
360.650.1111
FAX
360.650.1166
woodstone-corp.com
RADIANT BURNER TROUBLESHOOTING
1.
Debris in the Burner causing the Pilot to lose rectification� Remove the Burner and clean,
see the Common Repair Procedures section of this manual� Make sure the Igniter is not
damaged and that the Flame Rod is clean�
2.
Gas supply to oven is being interrupted or is inadequate, or Burner gas pressure is set
incorrectly� Verify the Burner gas pressure with all Burners running� There should not be a
significant pressure drop at the Burner when the other Burner(s) turn on� If a drop is noted,
the gas supply to the oven is inadequate and needs to be increased�
3.
Check that the Igniter wires are not wire-tied, coiled or wrapped together� Spread the
Igniter wires apart to minimize contact between them� Check the MOLEX connectors on
the wire harness and the Igniter�
4.
Incorrect Pilot adjustment� Adjust Pilot height at the Gas Valve� Turn the adjustment screw
in until the Pilot goes out� Then back the screw out to just beyond the point where the Pilot
relights�
5.
Excessive airflow from beneath the oven causing the Pilot flame to lift away from the
Flame Rod� Correct the airflow problem and make sure the Igniter gasket is in place�
Ideally there should be no discernible draft below the oven�
6.
Defective Pilot/Igniter—replace� If the Burner is still going out, replace the Gas Control
Valve�
Burner is not lighting, dome
flame light is on�
1.
Check the outlet pressure at the Gas Valve� Make sure it is adjusted as specified on the
Equipment Name plate beneath the oven� If pressure is extremely low or non-existent,
verify that there is sufficient pressure at the inlet side of the Gas Valve� If inlet pressure
is good, check that all the pins are locked securely in the MOLEX connector attaching
the wire harness to the Valve and that the connector is firmly in place� Check for damage
to the wire harness� If these are all good, the Gas Valve is defective and needs to be
replaced�
2.
If proper gas pressure is found at the Valve outlet, verify that there is pressure at the tap
below the Burner� There will normally be a slight drop in pressure from the outlet of the
Valve to the Burner� If the drop is extreme, disassemble the Throttle Control Valve and
check for a blockage�
If the pressure is good, drop the Burner and clean, make sure all Jets are clean and that
Pilot/Igniter has not been knocked out of position� The base of the Pilot/Igniter assembly
should be horizontal, even with the top of the Burner� Check that Pilot flame is not set too
low, and that the oven is not over vented�
Burner goes out intermittently�
Note:
On FD-9660,11260,
9690, 11275 and 11290
models (no Heat Shield), do
not run oven with Night Heat
Retention doors in place�
Symptom
Probable Cause/Solution
