Wood Stone FIRE DECK CE Series User manual

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WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
FIRE DECK SERIES - CE
Stone Hearth Oven
Gas-Fired, Gas/Wood Combination - CE Models
FIRE DECK 6045 WS-FD-6045-RFG-(IR)-(W)
FIRE DECK 8645 WS-FD-8645-RFG-(IR)-(W)
FIRE DECK 9660 WS-CS-REC-24-RFG-(IR)-(W)
DOC NO M0091.05 REVISED APRIL 2019
Service Manual

Fire Deck Ovens, CE Models
Service Manual
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M0091.05 APRIL 2019
An ongoing program of product improvement may
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WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
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TABLE OF CONTENTS
TABLE OF CONTENTS
Cautions & Warnings � � � � � � � � � � � � � � � � � 3
Introduction� � � � � � � � � � � � � � � � � � � � � � � � 4
Gas-Fired Ovens � � � � � � � � � � � � � � � � � � � � 5
IR-ONLY Operation Sequence � � � � � � � � � � � � 6
RFG-IR Operation Sequence� � � � � � � � � � � � � 7
Gas Oven Components � � � � � � � � � � � � � � � � 8
Controller Functions � � � � � � � � � � � � � � � � � 11
Controller Troubleshooting � � � � � � � � � � � � � 12
Gas Burner Troubleshooting � � � � � � � � � � � � 14
Common Repair Procedures� � � � � � � � � � � � 20
Gas Component Layout � � � � � � � � � � � � � � �23
RFG-IR Wiring Diagram (Before March 2019)� � 24
RFG-IR Wiring Diagram (After March 2019) � � � 26
Parts List � � � � � � � � � � � � � � � � � � � � � � � � 28
Utility Specifications � � � � � � � � � � � � � � � � � 29
FD-6045 Gas Specifications� � � � � � � � � � � � 30
FD-8645 Gas Specifications� � � � � � � � � � � � 31
REC-24 (FD-9660) Gas Specs � � � � � � � � � � 32
Start-Up Checklist � � � � � � � � � � � � � � � � � � 33
Limited Warranty � � � � � � � � � � � � � � � � � � � 35

Fire Deck Ovens, CE Models
Service Manual
PG 3 OF 36
M0091.05 APRIL 2019
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require us to change specifications without notice.
WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
CAUTIONS & WARNINGS
IMPORTANT: Consult your local gas supplier for a statement outlining a procedure to be followed in the
event you smell gas. Post the statement in a prominent location.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or
any other appliance. Also, always keep the area under and around this appliance free and clear of any and all
combustible materials.
WHEN THE OVEN IS NOT PROPERLY INSTALLED, A FIRE MAY RESULT.
TO REDUCE RISK OF FIRE, FOLLOW THE INSTALLATION INSTRUCTION.
A MAJOR CAUSE OF OVEN RELATED FIRES IS A
FAILURE TO MAINTAIN REQUIRED CLEARANCES
TO COMBUSTIBLE MATERIAL. IT IS OF UTMOST
IMPORTANCE THAT THIS OVEN BE INSTALLED ONLY
IN ACCORDANCE WITH THESE INSTRUCTIONS.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause property damage,
injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or
servicing this equipment.
IMPORTANT: It is recommended that this oven be installed, maintained and serviced by authorized professionals.
WOOD STONE CE LISTED GAS OVEN AND WOOD OVEN SERVICE MANUAL
THIS MANUAL IS FOR USE ONLY BY TRAINED AND QUALIFIED SERVICE PERSONNEL.

Fire Deck Ovens, CE Models
Service Manual
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WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
INTRODUCTION
WOOD STONE OVEN SERVICE MANUAL INTRODUCTION
Welcome to the Wood Stone Oven Service manual. This manual covers the Fire Deck line of gas-fired and gas/wood
ovens. If the unit you are servicing does not appear in this book please call our Service Department for assistance. This
manual is for use only by Trained and Qualified Service Personnel.
WARNING! Improper installation adjustment, alteration, service or maintenance can result in property damage, injury or
death� Please read and understand all pertinent instructions before attempting to install or perform any kind of service on this
equipment� BE SAFE�
PRODUCT OVERVIEW
The Fire Deck ovens are available in a wide variety of gas and solid fuel configurations.
BURNER FUNCTION
Radiant Flame Burner (RFG): When equipped, the Radiant Flame Burner is the main heat source for the oven, and it runs
continuously when the oven is turned on� Fire Deck ovens will often have multiple RFG Burners� To control temperature, Flame
Height Control Knob(s) are provided at the front of the oven� There is no thermostatic control for the Radiant Flame Burner;
the operator manually adjusts the flame height with the Flame Height Control Knob to control the temperature of the
oven.
Infrared Burner (IR): The IR is installed beneath the floor of the oven� It is controlled independently of the Radiant Burner by a
temperature control located in the oven Controller box� This box is located on the front of the oven� The Controller incorporates a
programmable Hearth Set Point and a Hearth (floor) Temperature Display� Remember the Underfloor IR Burner is not the primary
heat source for the oven�
SOLID FUEL OPTIONS
Wood (-W): Models that are equipped with the Radiant Flame Gas Burner (-RFG in the model number) and include a (-W) in the
model number are configured to allow for wood burning, up to a specified amount as detailed in the Installation and Operation
Manual for that model� In this configuration the wood IS NOT the primary heat source—the gas Burner still provides the majority
of the heat�
SERVICE DEPARTMENT AND WARRANTY INFORMATION
Please contact your local distributor, or you may reach Wood Stone in the U.S. at +1.360.650.1111 or at
www.woodstone-corp.com.
Parts are available through your local distributor. Additional Service Manuals and Installation and Operation Manuals
are also available. Installation and Operation Manuals, and additional installation information, are also available on the
Wood Stone web site at www.woodstone-corp.com.

Fire Deck Ovens, CE Models
Service Manual
PG 5 OF 36
M0091.05 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
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
GAS-FIRED OVENS
Wood Stone manufactures two different model types of CE gas fired-ovens�
1. Radiant Flame Gas (RFG): This model uses a Radiant Flame (dome flame) Burner that is designed to give the appearance of
a wood fire� This Burner is the sole heat source in these models� Some variations of this model type may have multiple Radiant
Flame Burners�
2. Infrared Burner (RFG-IR): This model type incorporates both an Underfloor IR Burner and at least one Radiant Flame (Dome
Flame) Burner� The Radiant Flame Burner is the main heat source in this oven� The thermostatically controlled, Underfloor IR
Burner is usually only activated during times of peak use and at the beginning of the day when the oven is first turned ON�
BURNER FUNCTION
Radiant Flame Burner(s): The Radiant Burner, located at either side, or both sides, of the oven, is the main heat source for the
oven, and it runs continuously when the oven is turned ON� The control for the Radiant Flame Burner is the Flame Height Control
Knob, located on the front of the oven, on the side the burner is located� There is no thermostatic control for the Radiant Burner—
the operator manually adjusts the flame height with the Flame Height Control Knob to control the temperature of the oven�
Infrared Burner (IR): The IR Burner is installed beneath the floor of the oven� The IR is controlled independently of the Radiant
Burner by a temperature control located in the oven Control Box� This box is usually located on the front of the oven, but sometimes
this might be moved to a different spot to accommodate the type of installation� The Controller incorporates a programmable Hearth
Set Point and a Floor Temperature Display� Remember the IR Burner is not the primary heat source for the oven�
Radiant
Burner
Underfloor
IR Burner
OPERATIONAL OVERVIEW
Model shown, FD-8645-LR-IR,
is typical of Fire Deck Models

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Service Manual
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WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
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FAX [phone]
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IR-ONLY OPERATION SEQUENCE
BURNER OPERATION SEQUENCES
W-IR-CE MODELS
Power ON
IR - If the floor temperature is
above the Hearth Set Point, then
Controller does not power ICS-1
Module (for Underfloor Burner)�
IR - If the floor temperature is
below the Hearth Set Point, then
Controller sends power to ICS-1,
ICS-1 powers Igniter and opens
Pilot valve�
Pilot lights, ICS-1 senses Pilot
flame, Igniter OFF, Hearth Heat
Light ON, SV-1 opens, Underfloor
Burner lights�
Floor reaches the Hearth Set Point
temperature� Controller turns OFF
power to ICS-1 and Underfloor
Burner shuts OFF�
Pilot does not light, ICS-1 times
out, Touchpad Controller flashes
“chec”
Note: Wood is the primary heat source in W-IR ovens� The Underfloor IR Burner acts as an assist to maintain floor temperature
during heavy production periods�
Note: Ovens equipped with multiple Radiant Burners will have additional valves, SV-3, SV-4, etc� which will be powered at the
same time as the SV-2 valve described above� The operation sequence is identical to that of SV-2� However, be aware
that as long as SV-2 or SV-3 lights, the Dome Flame Indicator Light will come on and the Controller will power SV-1 as
necessary�

Fire Deck Ovens, CE Models
Service Manual
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WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
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RFG-IR OPERATION SEQUENCE
Pilot lights
Power ON
BURNER OPERATION SEQUENCE
RFG-IR-CE OVEN
Radiant Burner - ICS-2 Module
powers Igniter and opens Pilot
Valve�
Pilot does not light, ICS-2 Module
times out�
ICS-2 senses Pilot flame, Igniter
OFF, dome flame Indicator Light
comes ON, SV-2 opens, Radiant
Burner lights�
Radiant Burner remains ON until
oven is turned OFF�
IR - If the floor temperature is
above the Hearth Set Point, then
Controller does not power ICS-1
Module (for underfloor Burner)� IR - If the floor temperature is
below the Hearth Set Point, then
Controller sends power to ICS-1,
ICS-1 powers Igniter and opens
Pilot Valve�
Pilot lights, ICS-1 senses Pilot
flame, Igniter OFF, Hearth Heat
light ON, SV-1 opens, Underfloor
Burner lights�
Floor reaches the Hearth Set Point
temperature� Controller turns OFF
power to ICS-1 and Underfloor
Burner shuts OFF�
Pilot does not light, ICS-1 times
out, Touchpad Controller flashes
“chec”�
Note: Ovens equipped with multiple Radiant Burners will have additional valves, SV-3, SV-4, etc� which will be powered at the
same time as the SV-2 valve described above� The operation sequence is identical to that of SV-2� However, be aware
that as long as SV-2 or SV-3 lights, the Dome Flame Indicator Light will come on and the Controller will power SV-1 as
necessary�

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GAS OVEN COMPONENTS
GAS OVEN COMPONENTS
The following is a list of the key electrical and gas components found in Wood Stone gas ovens, accompanied by
information about the individual parts:
24 VAC TRANSFORMER
This is the power supply for all of the electrical components on the oven� It converts the incoming 230 VAC power to 24 VAC�
TRANSFORMER PLATE ASSEMBLY (PRIOR TO MAY 2015)
TOUCHPAD CONTROLLER
The Type 2 Controller (shown below) is used on RFG-IR and W-IR gas ovens� On the front of the Controller is a Lexan Touchpad
with a Hearth Temperature Display and Hearth Set Point buttons and display, Dome Flame and Hearth Heat Indicator Lights, and
ON/OFF and Celsius / Fahrenheit functions�
DIP SWITCH SETTINGS
The larger Type 2 Controller has DIP
switches on the back of the board that
must be set for the appropriate oven
model as shown below:
RFG-IR: Both ON
W-IR: #1 OFF, #2 ON
The Transformer Plate is located beneath the oven in the front, on the right
hand side� Mounted to the Transformer Plate are two Junction Boxes� The larger
Junction Box contains the 24 VAC Transformer, a Line Filter, 1 A fuse for the
incoming power, 5 A fuse for the 24 VAC Transformer output, and a Terminal
Strip for the incoming power connection�
Low voltage wiring for the oven is routed through the Terminal Strips in the
smaller Junction Box located towards the front of the Transformer Plate� It
allows easy voltage testing of various oven components for troubleshooting�
Do not alter any wiring within this box� Under no circumstances should 230
VAC wiring be connected or routed through this box! No external equipment
should be connected to the low voltage wiring of the oven� This may effect the
operation of the oven and may void the oven warranty�
TRANSFORMER PLATE ASSEMBLY (AFTER MAY 2015)
The Transformer Plate is located beneath the oven on the back stand� It consists
of one of the two types of transformers within an 203 x 305 mm (8 x 12")
Junction Box� It allows easy voltage testing to various oven components for
troubleshooting� All wiring harnesses and the Thermocouple are routed through
terminal strips within this box�
Do not alter any wiring within this box or on the oven� No external equipment
should be connected to the low voltage wiring of the oven� This may affect the
operation of the oven and will void the oven warranty�
Transformer Line Filter
Low voltage
terminal strips
1A fuse
Incoming power
connection
5A fuse
Low voltage
terminal strips
Incoming power
connection
2A fuse 5A fuse
Transformer Line Filter

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Service Manual
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WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
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GAS OVEN COMPONENTS
GAS SYSTEM COMPONENTS
GAS VALVES
All Wood Stone CE model ovens use the same type of combination Gas Valve, regardless
of the Burner� An adjustable pressure regulator is incorporated into the valve� Maximum
incoming line pressure to the oven must not exceed 14" W�C� (34�8 mbar)� If the line
pressure is too high, a Regulator must be installed in the incoming line� There is also
an adjustment for the Pilot Flame height on this valve as well� The valve is powered
and controlled by a separate Ignition Module (ICS)� On all wiring diagrams and in this
manual, the valve for the Underfloor IR Burner is referred to as SV-1� Radiant Burners are
numbered SV-2, SV-3, etc�
IGNITION CONTROL SYSTEM (ICS)
There is one ICS Module for each Burner on the oven� Each Module receives 24 VAC from
the oven Control Board� When the Module is powered, it sends spark to the Igniter and
powers the Pilot Solenoid on the Gas Valve� When the Module senses flame rectification
at the Pilot, it stops sending spark to the Igniter and powers the Main Gas Valve firing the
Burner�
PILOT IGNITER ASSEMBLY
The Pilot/Igniter is used in conjunction with the ICS Module to ignite the Burner and
provide flame sensing (flame rectification) for the Gas Valve� Ignition is of the spark-to-
Pilot type� Flame rectification is achieved from the spark rod to ground� A single wire
connects the Pilot Igniter to the ICS Module� This wire carries both spark and rectification
current� A Pilot Orifice is installed in line between the compression fitting and the body of
the Pilot Igniter Assembly� Use the correct orifice for the gas being used�
RADIANT BURNER ASSEMBLY
This is the Burner located at the side(s) of the oven and produces the
flames visible inside the dome� It consists of a stainless steel Burner
housing, a cast iron Burner Manifold, the Burner Jets and the Flame
Retention Springs that are attached to each Jet� There is an opening in
the Burner housing through which the Pilot Igniter Assembly is mounted�
Pilot adjustment
Pressure
Regulator

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GAS OVEN COMPONENTS
INFRARED BURNER ASSEMBLY
This is the Burner located beneath the floor of the oven� The tubes on the
outside of the Burner are used to supply air to the Burner� You will not
see flame in these tubes� DO NOT ATTEMPT TO LIGHT THIS BURNER
MANUALLY! To visually verify that the Burner is running, look through the
gap next to the Pilot assembly and you should see a reddish glow over
the ceramic Burner elements� This Burner operates only when the hearth
temperature is lower than the Controller’s Hearth Set Point�
THERMOCOUPLE
A Type K Thermocouple is used to sense the temperature of the oven floor
(hearth) about 25mm (1") beneath the hearth surface� It is located slightly to
the rear of the center of the oven (behind the IR Burner on an IR equipped
oven)� It is embedded in the floor of the oven, but is easily replaceable� On all
CE ovens, the Thermocouple leads are covered with braided steel sheathing
for EM and RF shielding�
SV-1 AND SV-2 WIRE HARNESSES
These harnesses supply the voltage needed to activate
and power their respective ICS Modules and Gas Valves�
They also send flame verification voltage from the
Module back to the Controller
SV-1 Wire Harness SV-2 Wire Harness
THROTTLE ASSEMBLY
The Flame Height Control Knob for this Valve is located on the front of the oven� This is what the operator uses to control the
flame height of the Radiant Burner only� Ovens equipped with two Radiant Burners will have a separate control for each burner�
It is not a shutoff Valve� Do not remove, or replace this Valve with anything but a Valve supplied by Wood Stone� The use of any
Valve not provided by Wood Stone will negate the CE Listing on the oven and could effect its safe operation.
Throttle
Control Valve
Control Rod
EMT Throttle Rod Extension
Flame Height
Control Knob
Cotter Pin Clamp
CONTROLLER WIRE HARNESS
This harness carries low voltage
to and from the oven Controller�
It also contains the Thermocouple
wires�

Fire Deck Ovens, CE Models
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WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
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CONTROLLER FUNCTIONS
RFG-IR / W-IR - TYPE 2 CONTROLLER
1-360-650-1111 www.woodstone-corp.com
F
C
O
I
ON/OFF button
Press to turn oven ON/OFF
Hearth Set Point Display
Indicates set point
temperature of the
Underfloor IR burner�
Hearth Temperature Display
The floor (hearth) temperature will be
displayed when the oven is turned
on� Sensor is embedded 25mm (1")
below the hearth surface� Display will
read “LO” when the temperature is
below 38 °C (100 °F)� Arrow buttons
Pressing appropriate
directional arrow to
adjusts Hearth Set Point
temperature up or down�
Temperature unit selector
Toggles between Fahrenheit
and Celsius temperature
scales in display screens�
Power Indicator Light
Indicates the oven is
turned ON�
Dome Flame
Indicator Light
Indicates the pilot
for the radiant flame
has lit�
Hearth Heat Indicator Light
Indicates that the pilot for the
Underfloor IR burner is lit� This
light will go OFF whenever the
hearth temperature is above the
Hearth Set Point�

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WOOD STONE CORPORATION
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Bellingham, WA 98226 USA
TEL [phone]
FAX [phone]
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CONTROLLER TROUBLESHOOTING
Temperature display reads “open” Indicates an open Thermocouple� Check for continuity between the 2 Thermocouple
leads� Verify that there is no continuity to ground� Check for loose Thermocouple
connections at the Control Board and at the J-Box on the Transformer Plate below
the oven before replacing� If there is heat damage to the Thermocouple it is usually
caused by excessive airflow beneath the oven that blows the heat from the IR back
onto the Thermocouple wire� This needs to be corrected—call your local distributor�
Oven does not turn on, Controller is blank Is the breaker and/or wall switch supplying power to the oven ON?
Has one of the fuses blown?
The two fuses are located on the Transformer Box on the Transformer Plate located
beneath the oven� Turn OFF the power supplying the oven before removing the
fuses� If a fuse is blown, find and correct the short and replace the fuse with one
of the same rating� In addition to a bad Gas Valve, wiring etc., a Thermocouple
that is grounding out can also cause the breaker to trip. Note: A power
surge or brown out condition may also cause a fuse to fail.
Check for 24 VAC between the pink and the white wires at the terminal block on
the oven Control Board inside the Controller box� If 24 VAC is present, make sure
that the four nuts attaching the Circuit Board to the face of the box are tight� DO
NOT OVERTIGHTEN; they should be snug enough that pressure on the Touchpad
activates the switches on the Circuit Board�
If the Controller is still not coming on, carefully remove all wires except the pink
and white from the Circuit Board terminal block� If the Controller comes on, it is OK
but there is a defective component or damaged and/or incorrect wiring elsewhere�
If with just the pink and white wires connected (and 24 VAC present), the
Controller still does not come on, replace the Controller Circuit Board�Disconnect
incoming power before removing wires to prevent damage to the Control Board�
GAS OVEN TROUBLESHOOTING
CONTROLLERS
TOUCHPAD CONTROLLERS
All versions of this Controller use a Lexan Touchpad (overlay) on the face of the Controller to operate the unit� It has Power
and Flame Indicator Lights and a Hearth Temperature display� IR equipped ovens will also have a Hearth Set Point display and
adjustment arrows� Additional information can be found in the Oven Components-Oven Controllers section of this manual�
Symptom Cause and/or Solution

Fire Deck Ovens, CE Models
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WOOD STONE CORPORATION
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Bellingham, WA 98226 USA
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
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CONTROLLER TROUBLESHOOTING
Product is overcooking and the Controller
is displaying a hearth temperature that is
considerably lower than the Hearth Set
Point and the IR Burner is running�
1. Thermocouple may be shorted causing it to read the temperature at the point of
the short� Look for damage to the Thermocouple wire� If there is heat damage,
it is usually caused by excessive airflow under the oven blowing heat from the
IR back onto the wiring� This needs to be corrected� Disable IR until problem
corrected�
2. Operational problem� Contact your local distributor�
Product is overcooking and the floor
temperature is higher than the Hearth
Set Point� The IR Burner should not be
running�
Operational problem� The operator is leaving the Radiant Burner at too high a
setting for too long and, as a result, is driving up the oven temperature� It is very
easy for a radiant flame to heat the oven’s Hearth Temperature well above the
Hearth Set Point if it is not managed correctly (especially if the oven is not under
much use at the time)� Contact your local distributor�
Temperature display scrambles and/or is
erratic, oven intermittently blows fuses
OR
Display appears fine, but the fuse blows
instantly and/or intermittently�
Thermocouple is shorting to ground� There should be no continuity between the
Thermocouple leads and ground� Check Thermocouple connections at Control
Board and J-Box below the oven� Remove Thermocouple leads at J-Box and retest
to confirm damaged Thermocouple and not bad wire in the Control Harness�
Symptom Cause and/or Solution
RFG-IR Oven: Controller is on, but
radiant flame does not come on, IR
Burner does not come on�
RFG Oven: Controller is on, but radiant
flame is not coming on�
Controller is fine� See Radiant and Infrared Burner Troubleshooting section of this
manual�
Note: On RFG-IR ovens with this Controller, the Controller will not signal the
Infrared Burner to light until after the dome flame has lit�
RFG-IR Oven: Radiant flame comes on,
a short time later the display flashes
"chec" and the Hearth Heat Indicator
Light flashes�
Controller is fine� It is indicating that the Controller called for the IR to light, but the
IR Burner did not fire within the time allowed by the Controller� See Radiant and
Infrared Burner Troubleshooting section of this manual�

Fire Deck Ovens, CE Models
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WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
GAS BURNER TROUBLESHOOTING
Symptom Cause and/or Solution
OPERATIONAL OVERVIEW
Wood Stone CE gas ovens utilize a spark to Pilot ignition system� Flame
rectification is sensed through the flame rod on the Pilot/Igniter to ground
via the Pilot Tube� Each Burner has its own ignition (ICS) Module and
Gas Valve� When the ICS Module receives 24 VAC power, it sends spark
to the Igniter and opens the Pilot solenoid on the Gas Valve� When the
Module senses flame rectification at the Pilot it will then power the main
solenoid in the Gas Valve causing the Burner to fire� If the Pilot goes out,
the ICS will automatically attempt to relight the Pilot� If the green light on
the ICS is lit, the Module is receiving power� A flashing green light means
the Module has timed out while trying to light the Pilot� Turn the oven
OFF, then back ON, to reset the Module� Radiant Flame Burner
Pilot Tube
Gas Pipe
Burner
housing
Flame
jet
Pilot/Igniter
RADIANT FLAME BURNER TROUBLESHOOTING
The Radiant Flame Burner is the Burner located at the rear of the oven� On some models, this Burner is located on the side of the
oven chamber� It is the main heat source for all ovens equipped with this Burner� The flame height is adjustable by means of the
Throttle Control Valve located on the front of the oven on the left side�
Burner does not light, oven Controller is
ON, no spark at the Burner�
Note: On any call where the complaint
is that the Radiant Burner will not light,
stay lit or is going out intermittently, Wood
Stone strongly recommends that the
Radiant Burner be removed for inspection
and cleaning� The majority of Radiant
Burner problems can be traced to debris
in the Burner� See the “Common Repair
Procedures” section of this manual�
When the oven is ON the green light on the ICS-2 Module should be lit� This
Module is located beneath the oven and mounted at the rear�
If the green light is ON (light may start blinking after few minutes): Turn the oven
OFF� Remove the rear Burner and remove any debris on the Burner� (See the
“Common Repairs” section of this manual�) Check the Igniter wire for continuity
between the terminal on the end and the spark electrode on the Igniter� Check
the Igniter for damage (cracked insulator, bent or broken electrode, etc�)� Make
sure electrode is not shorted to ground� Replace Igniter if damaged� Clean the
spark electrode if needed�
If Igniter is fine: With the oven OFF remove the Igniter wire from the ICS Module�
Turn the oven back ON� Keep away from the Igniter terminal on the Module� You
should hear a repetitive clicking sound coming from the Module� If no sound is
heard replace the Module� If the ICS Module is bad check both solenoid coils
on the Gas Valve for continuity� Make sure there are no shorts to ground on the
valve�
Continued on next page >

Fire Deck Ovens, CE Models
Service Manual
PG 15 OF 36
M0091.05 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
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
GAS BURNER TROUBLESHOOTING
If the green light is OFF: With the oven ON Check for 24 VAC between TH and
TR terminals on the ICS-2 Module at the rear of the oven� If there is 24 VAC then
the ICS-2 Module is bad�
If there is not 24 VAC present: Check that Module is wired according to the
schematic on the oven� Check wiring connections in the front junction box on the
Transformer Plate and at the terminal strip on the Touchpad Control Board� With
the oven on check for 24 VAC between the brown and white wires at the terminal
strip on the back of the Control Board� If there is no voltage and the Controller is
on, turn OFF the power supplying the oven� Disconnect all wires from the Control
Board Terminal strip EXCEPT pink, white and brown� Repower the oven, turn the
Controller back on� If 24 VAC now present, check remaining wiring� Especially
make sure that Thermocouple wiring is not shorted to ground� If 24 VAC is still
not present-replace the Control Board�
Light on ICS Module is flashing - Module has timed out� Turn the oven OFF,
then back on to reset� If there is no spark at the Burner follow the steps on the
previous page to troubleshoot the problem� If there is spark proceed to the next
step below� Replace the Module if it does not reset�
Symptom Cause and/or Solution
< Continued from previous page
Burner does not light, oven Controller is
on, no spark at the Burner�
Note: On any call where the complaint
is that the Radiant Burner will not light,
stay lit or is going out intermittently,
Wood Stone strongly recommends that
the Radiant Burner be removed for
inspection and cleaning� The majority
of Radiant Burner problems can be
traced to debris in the Burner� See the
“Common Repair Procedures” section of
this manual�
Burner does not light, there is spark at
the Burner� Dome flame Indicator Light
on Controller is not lit�
1. Gas supply to the oven has been turned OFF� Check manual shutoffs, fire
suppression system resets, etc�
2. There may be air in the gas line� On a new oven start-up there may be air
in the gas line� Turn the oven on for about 30 seconds� Turn it back OFF and
then back on for 30 seconds� Repeat this up to five times� If oven does not
light and you are not smelling gas continue with this step, it will be necessary
to remove the Inlet Plug on the Gas Valve which will enable the air to be bled
more quickly from the line� This can be done on the IR Gas Valve if equipped�
Remove the plug on the inlet side of the Gas Valve using a hex key wrench�
Allow the air to bleed out until you smell gas� Re-install the plug� Allow the
gas to dissipate and then turn the oven on� If the oven does not light after
30 seconds, turn it OFF and back ON again� It may be necessary to do this
a few times� EXTINGUISH ALL OPEN FLAMES BEFORE BLEEDING THE GAS
LINE. DO NOT LEAVE THE OVEN UNATTENDED WHILE THE INLET PLUG IS
REMOVED FROM THE Gas Valve!
3. Check for loose wire connections at the ICS Module and the Gas Valve�
Continued on next page >
RADIANT FLAME BURNER TROUBLESHOOTING (CONTINUED)

Fire Deck Ovens, CE Models
Service Manual
PG 16 OF 36
M0091.05 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
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
GAS BURNER TROUBLESHOOTING
If Burner still does not light, proceed with the following:
4. Try to determine if the Pilot is actually lighting� Use an inspection mirror to see
if the Pilot is actually lighting, DO NOT CLIMB INSIDE THE OVEN� Make sure
flame rod is clean and that no debris is interfering with the flame�
If Pilot is lighting: Pilot flame should envelop 9�5–12�7mm (3/8"–1/2") of the
flame rod for the ICS Module to sense flame rectification� If the flame is not
making good contact, the Pilot can be adjusted at the Gas Valve� Also, make
sure that all Pilot Tube connections are tight� Remove the cap screw next
to the Pilot Tube to access the adjustment� If Burner still does not light (no
rectification), check the Igniter for damage: cracked insulator, etc� Replace the
Igniter if necessary�
If Pilot is not lighting: Make sure the Pilot Orifice is not plugged� (See the
Common Repair Procedures section of this manual�)
If no gas is going to the Pilot: Check for 24 VAC at the Pilot Solenoid Terminals
on the Gas Valve� If no voltage is present, check wiring, replace ICS Module if
necessary� If voltage is present but no gas is flowing to Pilot, replace the Gas
Valve�
Symptom Cause and/or Solution
< Continued from previous page
Burner does not light, there is spark at
the Burner� Dome Flame Indicator Light
on Controller is not lit�
1. Verify that gas is going to the Burner using a manometer at the port below the
Burner� If no gas is present, check for sufficient incoming gas pressure at the
oven� If incoming pressure is good, check for 24 VAC at TH and TR terminals
of the Gas Valve with the oven turned on� If voltage is present but no gas to
the Burner, replace the valve� If no voltage present check wiring from the ICS
Module� If wiring is good, replace ICS Module�
2. If proper gas pressure is found at the Burner, 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� Lighting problems can also occur if the Pilot is adjusted
too low, or if the oven is overvented� (See the Common Repair Procedures
section of this manual�)
Burner is not lighting,
dome flame light is ON�
RADIANT FLAME BURNER TROUBLESHOOTING (CONTINUED)
Flame height is low�
The flame should be
approximately 305–381mm
(12–15") tall at full-throttle�
1. The Burner gas pressure is low; adjust the regulator on the Gas Valve to
obtain the specified pressure� If the specified pressure cannot be obtained,
verify that incoming gas pressure is sufficient; check this with the oven
running� If the incoming pressure is good, there may be a blockage in the
Throttle Control Valve� Remove the Throttle Valve and clean the orifices�
2. Debris in the Burner� Remove and clean� (See Common Repair Procedures
section of this manual�)
Continued on next page >

Fire Deck Ovens, CE Models
Service Manual
PG 17 OF 36
M0091.05 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
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
GAS BURNER TROUBLESHOOTING
RADIANT FLAME BURNER TROUBLESHOOTING (CONTINUED)
Symptom Cause and/or Solution
Burner goes out intermittently�
Note: Do not run oven with Night
Doors in place!
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. Incorrect Pilot adjustment� Adjust Pilot height at the Gas Valve� Turn adjustment
screw in until Pilot goes out� Then back the screw out just beyond the point
where the Pilot relights�
3. Loose wire at ICS Module, Gas Valve or Control Board�
4. 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�
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.
Soot is forming near the Burner�
Note: Do not run oven with Night Doors
in place!
1. Check for debris in the Burner; remove Burner and clean� (See the Common
Repair Procedures section�) If a Log Set is installed, verify that it is positioned
correctly�
2. If Burner is clean, check that the oven is properly configured for the gas being
supplied� Call your local distributor�
Burner doesn’t light or goes out, and the
Igniter wire is burned�
1. Loosen Pilot Tube� Tighten and replace Igniter�
2. Inadequate venting or negative air (see Installation and Operation Manual)�
Radiant flame height is much higher on
the Igniter side of the Burner (usually the
left side)� The flame on this side does not
decrease when the operator turns down
the flame height�
Pilot Orifice is damaged or missing� Remove Pilot/Igniter� Orifice fits between the
brass compression fitting attaching the Pilot Tube and the Igniter body� Replace
with new Pilot Orifice�
Throttle Valve difficult to adjust� Verify that Throttle Knob is not binding� If Throttle Valve itself is stiff, replace the
Throttle Valve�

Fire Deck Ovens, CE Models
Service Manual
PG 18 OF 36
M0091.05 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
TEL [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
GAS BURNER TROUBLESHOOTING
Symptom Cause and/or Solution
INFRARED BURNER TROUBLESHOOTING
Many Wood Stone ovens are equipped with an underfloor infrared (IR) Burner� The IR Burner is designed to assist the Radiant Burner
during start-up and during times of heavy usage� This is not the primary heat source for the oven� It is thermostatically controlled�
The IR Burner’s Gas Valve and Pilot/Igniter are identical to those used on the Radiant Burner�
RFG-IR ovens
IR Burner is not lighting� The display may
be flashing "chec"�
NOTE: You will not see flame at the black
tubes on the front of the Burner�
CAUTION: Never attempt to light this
Burner manually� To visually confirm that
the Burner is lit, look through the gap
next to the Pilot/Igniter�
Remember: The Controller will not allow
the IR to light until after the rear (radiant)
Burner has lit� IR will then light only if the
Hearth Temperature is below the Hearth
Set Point�
Is the Radiant Burner running? If not, proceed first with Radiant Burner
troubleshooting� (See previous pages of this manual�)
NOTE: On RFG-IR ovens, the IR Burner will not light until the Controller has
verification that the Radiant Burner has lit�
If the Radiant Burner is running, and the Controller is calling for IR heat, it will
allow the IR Burner 90 seconds to light� If the Burner has not lit after this time, the
Controller will flash "chec"� Turn the oven OFF and then back on to reset�
1. If the Radiant Burner is running, is the Controller calling for heat? (Hearth
Temperature lower than Hearth Set Point)�
2. Check for loose wire connections at the ICS Module and the Gas Valve� If the
Controller is calling for the underfloor Burner to light the green light on the ICS
Module should be lit�
If Burner still does not light, proceed with the following:
3. If there is spark determine if the Pilot is actually lighting� Look through the gap
next to the Igniter to see if the Pilot is actually lighting, make sure flame rod is
clean and that no debris is interfering with the flame�
If Pilot is lighting: Pilot flame should envelop 9�5–12�7mm (3/8"–1/2") of the
flame rod for the ICS Module to sense flame rectification� If the flame is not
making good contact, the Pilot can be adjusted at the Gas Valve� Also, make
sure that all Pilot Tube connections are tight, and that the Flame Rod is clean�
Remove the Cap Screw next to the Pilot Tube to access the adjustment�
If Burner still does not light (no rectification): Check the Igniter for damage
such as a cracked Insulator� Replace Igniter if necessary�
If no gas is going to the Pilot: Make sure the Pilot Orifice is not clogged�With
the oven on and the Controller calling for underfloor heat check for 24 VAC at
the Pilot Solenoid Terminals on the Gas Valve�
If no voltage: Check wiring, replace ICS Module if necessary�
If voltage is present but no gas is flowing to Pilot: Replace the Gas Valve�
Continued on next page >

PG 19 OF 36
M0091.05 APRIL 2019
Fire Deck Ovens, CE Models
Service Manual
GAS BURNER TROUBLESHOOTING
4. If there is no spark and the Controller is calling for heat�
If the green light on the ICS-1 Module is on, (light may start blinking after few
minutes): Turn the oven OFF� Check the Igniter wire for continuity between the
terminal on the end and the spark electrode on the Igniter� Check the Igniter for
damage(cracked insulator, bent or broken electrode etc) Make sure electrode is
not shorted to ground� Replace Igniter if damaged� Clean the spark electrode if
needed�
If Igniter is fine: With the oven OFF, remove the Igniter wire from the ICS
Module� Turn the oven back on� Keep away from the Igniter terminal on the
Module� When the green light turns back on you should hear a repetitive
clicking sound coming from the Module� If no sound is heard replace the
Module� If ICS Module is bad check both solenoid coils on the Gas Valve for
continuity� Make sure there are no shorts to ground on the valve�
If the green light is OFF: With the oven ON Check for 24 VAC between TH and TR
terminals on the ICS-1 Module at the right front of the oven� If there is 24 VAC,
then the ICS-2 Module is bad�
If there is not 24 VAC present: Check that Module is wired according to the
schematic on the oven� Check wiring connections in the front junction box on the
Transformer Plate and at the terminal strip on the Touchpad Control Board� With
the oven on check for 24 VAC at the terminal strip on the back of the Control
Board between the yellow and white wires� If there is no voltage and Controller
is ON, turn OFF power supplying the oven� Disconnect the Thermocouple wires
from the Control Board Terminal strip� Repower the oven, turn the Controller back
on� Wait for the Radiant Burner to light� If 24 VAC now present, check remaining
wiring�
Light on ICS Module is flashing: Module has timed out� Turn the oven OFF, then
back on to reset� If there is no spark at the Burner follow the steps on the previous
page to troubleshoot the problem� Replace Module if it does not reset� Especially
make sure that Thermocouple wiring is not shorted to ground� If 24 VAC still not
present: Replace Control Board�
INFRARED BURNER TROUBLESHOOTING (CONTINUED)
Symptom Cause and/or Solution
< Continued from previous page
RFG-IR ovens
IR Burner is not lighting� The display may
be flashing "chec"�
NOTE: You will not see flame at the black
tubes on the front of the Burner�
CAUTION: Never attempt to light this
Burner manually� To visually confirm that
the Burner is lit, look through the gap
next to the Pilot/Igniter�
Remember: The Controller will not allow
the IR to light until after the rear (radiant)
Burner has lit� IR will then light only if the
Hearth Temperature is below the Hearth
Set Point�
IR Burner goes out intermittently when
Controller is calling for IR heat�
1. Check wire connections at the Gas Valve and ICS-1 Module� Also check for
loose connections at the Controller�
2. Inspect the Igniter� Clean it if necessary; replace it if damaged�
3. Check the Burner gas pressure, adjust the valve to achieve the specified
pressure on the Equipment Data Plate� Check the incoming gas pressure with
the Burner running� If the incoming pressure is OK, but Burner the pressure
is low and will not adjust as high as the pressure specified on the Equipment
Data Plate OR if the Burner pressure is erratic, replace the Gas Control Valve�
Burner will not light or shuts OFF
sometimes, Igniter wire burned�
1. Loose Pilot Tube—Tighten and replace Igniter�
2. Inadequate oven venting or negative air pressure (see the Venting section of the
Installation and Operation Manual�
Continued on next page >

PG 20 OF 36
M0091.05 APRIL 2019
Fire Deck Ovens, CE Models
Service Manual
COMMON REPAIR PROCEDURES
NOTE: Remove the front panel on the oven to access all non-Controller components�
CHECKING BURNER GAS PRESSURES.
Proper gas pressure settings and an adequate incoming gas supply are critically important for any gas-fired Wood Stone oven to
operate correctly� All Burner gas pressure measurements should be taken at the port on the respective Burner Manifold� When taking
a measurement of Radiant Burner Manifold pressure, make sure that the Throttle Valve is fully open (maximum flame height)� Pressure
readings should be taken with all Burners running–this will reveal if the incoming gas supply is adequate�
Where it is suspected that the incoming pressure is inadequate, test the incoming pressure with the oven OFF and then with the oven
ON and all Burners running� If the incoming pressure drops significantly with the oven running, and the proper pressures cannot be
obtained at the Burner(s), the gas supply is inadequate� Look for Regulators external to the oven that may be adjusted too low, partially
closed valves or undersized piping� The supply piping to the oven needs to be 19mm (3/4") I�D� minimum, and depending on the
length of the run, it may need to be larger� Consult a qualified gas piping installer to deal with any supply piping issues� Use of Flex
Piping to supply gas to the oven is discouraged. The specified pressure for each Burner may be found on the equipment data
plate, located beneath the oven�
REMOVAL AND CLEANING OF RADIANT BURNER
This procedure may be performed while the oven is hot� We strongly recommend that the technician wear heat protective gloves and
safety glasses/goggles when removing the Burner�
1. For Burner removal, first turn the oven OFF� Turn OFF the gas supply to the oven�
2. Disconnect the Igniter wire from the ICS Module�
3. Disconnect the Pilot Tube at the Gas Valve�
4. Disconnect the Flexible Gas Piping where it attaches below the Burner�
5. Carefully remove the four bolts holding the Burner can in place and lower the Burner out of the well� Caution: Watch out for
falling debris while removing the Burner.
6. Clean off any debris on the Burner�
7. Check that Burner Jets are not blocked, and that Pilot/Igniter Assembly is not dirty or damaged� If removing Igniter, be aware of the
Pilot Orifice, which slips into the Igniter where the Pilot Tube is attached, can fall out if you are not careful� Any Burner Jets that are
clogged should be removed from the Burner Manifold to prevent
debris from entering the Manifold while cleaning�
8. To remove the Jets, first remove the Flame Retention Spring
attached to each Jet by gripping the spring with a pair of
pliers and pulling away from the Burner while turning the
spring clockwise�
With CS-REC-24 (FD-9660) models, remove the washer�
Remove the hex bolts that hold the Burner Manifold in place�
Remove the Manifold, then remove the individual Jets�
Make sure to reinstall so the hexagonal part of the Jet is
closest to the Burner Manifold�
Make sure to reinstall the washers and Flame Retention
Springs� Note: Hand tighten Manifold hex bolts� Do NOT use
impact wrench�
9. To reinstall Burner, follow the removal steps in reverse�
10. Check for gas leaks using soap solution with the Burner running�
Avoid getting soap solution on the valve, ICS Module or
Igniter wires.
REV:
DATE:
PART #:
1801 West Bakerview Road, Bellingham, WA 98226 360/650-1111
3/25/2019
markm 0
DWN BY:
SHEET:
1 of 1
PROJ #:
4917
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF WOOD STONE CORPORATION
ANY REPRODUCTION OR USE IN PART ORASA WHOLE WITHOUT THE WRITTEN PERMISSION OF WOOD STONE IS PROHIBITED
FD 9660
Radiant Burner Assembly - RH
DIMENSIONS ARE IN INCHES
TOLERANCES: LINEAR ±1/16, ANGULAR ±1°
UNLESS NOTED OTHERWISE
002-926-9660-R-NG
NG
DETAIL A
Item Part Number Rev Description Material Qty
1 1530101 0 Ignitor Mounting Bracket Stainless Steel, 304 1
2 5130-1290 0 Radiant Burner Can - RH 1
3 7000-0198 0 5/8" OD Flare x 1/2" MIP 1
4 7000-0225 0 Elbow 1/2"NPT 90° FxF SCH 40 Black 1
5 7000-0245 0 1/2" x 8 Nipple SCH 40 Black 1
67000-0250 0 1/4" Pilot Tube Aluminum 10 Inches
77000-0260 0 1/4" x 1/4" Compression Union Brass 1
8 7000-0600 0 15 Jet Manifold - 1/2" NPT - RH - w/ "D" Jets 1
97000-0749 0 Igniter - Honeywell Q3450 B 1039 1
10 7000-0777 0 Pilot Igniter Gasket Rollboard 1
11 9000-0054 0 Screw, 8-32 x 3/8" PH, Pan Head, T/C Steel, Zinc Plated 1
12* 9000-0114 1 Screw, 10-32 x 1/4" PH Truss Head Stainless Steel, 18-8 1
13 9000-0250-SS 0 Screw, 1/4-20 x 3/8 Hex Stainless Steel, 18-8 5
14 9000-0475 0 Washer 7/16" Flat SS 15
   
   
   
11
1
9
6
7
5
4
3
10
Top View Detail of
Igniter Hood Position
NOTE Orientation
of Igniter Hood
to Burner Jet
Ga
All Burner Springs To
Be 90° to Burner Can
90°
Manifold Standard
with "D" Jets
and Springs
CS-REC-24 (FD-9660)
BURNER
(Right Burner shown)
Manifold
Burner
Can
Washer
Manifold
Hex Bolt
(not shown)
Flame
Retention
Spring