Wood Stone BISTRO Series User manual

Toll Free 800.988.8103
Tel [phone]
Fax [phone]
www.woodstone-corp.com
WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
BISTRO LINE / PHOENIX
Stone Hearth Oven
Gas-Fired, Gas/Wood Combination Models
BISTRO/PHOENIX 3030
WS-BL-3030-RFG, WS-PX-3030-RFG
BISTRO/PHOENIX 4343
WS-BL-4343-RFG-(W), WS-PX-4343-RFG-(W)
BISTRO/PHOENIX 4355
WS-BL-4355-RFG-(W), WS-PX-4355-RFG-(W)
BISTRO/PHOENIX 4836
WS-BL-4836-RFG, WS-PX-4836-RFG
BISTRO/PHOENIX DUAL BURNER
WS-BL-4343-RFG-LR, WS-BL-4355-RFG-LR,
WS-BL-4836-RFG-LR
DOC NO M0008.08 REVISED SEPTEMBER 2017
Service Manual

Bistro Line / Phoenix
Service Manual
PG 2 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
TABLE OF CONTENTS
TABLE OF CONTENTS
Bistro Line / Phoenix Ovens � � � � � � � � � � � � � � � � � 3
Cautions & Warnings � � � � � � � � � � � � � � � � � � � � � � 4
Operation Sequence� � � � � � � � � � � � � � � � � � � � � � � 6
CONTROL PANEL
Single Burner � � � � � � � � � � � � � � � � � � � � � � � � � 7
Dual Burner � � � � � � � � � � � � � � � � � � � � � � � � � � 8
COMPONENT LAYOUT
T-Burner� � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9
Jet Burner � � � � � � � � � � � � � � � � � � � � � � � � � � 10
Dual Burner � � � � � � � � � � � � � � � � � � � � � � � � � 11
Troubleshooting Guide � � � � � � � � � � � � � � � � � � � � 12
Repair Procedures � � � � � � � � � � � � � � � � � � � � � � �19
Parts List� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 22
Elect / Gas Specifications � � � � � � � � � � � � � � � � � � 23
Gas Specifications � � � � � � � � � � � � � � � � � � � � � � � 24
ELECTRICAL DIAGRAMS
Single Burner � � � � � � � � � � � � � � � � � � � � � � � � 26
Dual Burner � � � � � � � � � � � � � � � � � � � � � � � � � 27
Single Burner 100-120VAC (before 4/2005)� � 28
Single Burner 220-240VAC (before 4/2005)� � 29
Technical Verification Checklist � � � � � � � � � � � � � � 30
Limited Warranty � � � � � � � � � � � � � � � � � � � � � � � � 31

Bistro Line / Phoenix
Service Manual
PG 3 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
BISTRO LINE / PHOENIX OVENS
SERVICE MANUAL FOR THE WOOD STONE
BISTRO / PHOENIX OVEN
NATURAL GAS OR PROPANE FUELED STONE HEARTH OVEN
COMMERCIAL MODELS
WS-BL-(3030, 4343, 4355, 4836)
WS-PX-(3030, 4343, 4355, 4836)
WS-BL-(4343, 4355, 4836)-LR DUAL BURNER
WS-PX-(4343, 4355, 4836)-LR DUAL BURNER
DO NOT THROW THIS MANUAL AWAY

Bistro Line / Phoenix
Service Manual
PG 4 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
CAUTIONS & WARNINGS
CAUTION: Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid or similar liquids
to start of freshen a fire in this oven. Keep all such liquids well away from the oven when in use.
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.
When this oven is not properly installed, a fire may result. To reduce the risk of fire,
follow the installation instructions. It is recommended that this oven be installed, maintained
and serviced by authorized professionals.
DO NOT USE PRODUCTS NOT SPECIFIED FOR USE WITH THIS OVEN.
READ ALL INSTRUCTIONS BEFORE INSTALLING AND USING THIS APPLIANCE
Please read this entire manual before you install the oven. Failure to follow instructions may result in
property damage, bodily injury or even death. Contact your local building or fire officials about restrictions
and installation inspection in your area.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this
or any other appliance.
POUR VOTRE SÉCURITÉ: Ne pas entreposer ni utiliser d’essence ou d’autres vapeurs de liquides
inflammables ou des liquides dans les environs de ce ou de tout autre appareil.
WARNING: Improper installation, adjustment, alteration, service or maintenance can result in property
damage, injury or death. Read the installation, operation and maintenance instructions thoroughly before
installing or servicing this equipment.
AVERTISSEMENT: L’installation, le réglage, la modification, la réparation ou l’entretien incorrect de cet
appareil peut causer des dommages matériels, de blessures ou la mort. Lire attentivement les instructions
d’installation, de fonctionement et d’entretien avant de procéder à son installation ou entretien.
RETAIN THIS MANUAL FOR FUTURE REFERENCE
Additional copies of this manual and prompt responses to service/maintenance
questions are available from Wood Stone @ 1-800-988-8103�
SERVICE MANUAL FOR WOOD STONE BISTRO/PHOENIX MODEL OVENS
NATURAL GAS (NG) OR PROPANE (LP) FUELED STONE HEARTH OVEN

Bistro Line / Phoenix
Service Manual
PG 5 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
CAUTIONS & WARNINGS
SAVE THE INSTRUCTIONS
This appliance is for professional use by qualified personnel. This appliance must
be installed by qualified persons in accordance with the regulations in force. This
appliance must be installed with sufficient ventilation to prevent the occurrence of
unacceptable concentrations of substances harmful to health in the room in which
it is installed. This appliance needs an unobstructed flow of fresh air for satisfactory
combustion and must be installed in a suitably ventilated room in accordance with
current regulations. This appliance should be serviced by qualified personnel at least
every 12 months, or sooner if heavy use is expected.
!
Wood Stone’s Gas-Fired Bistro ovens have been tested and approved
by Intertek Testing Services and are ETL listed to ANSI Z83.11:2016 Ed. 4 / CSA 1.8:2016 Ed. 4,
ULC Subject 1482-M1990, UL Subject 2162, ULC-S627-00, UL 737, CSA 2.17-M91
and to NSF/ANSI Standard 4:2016
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.
This product must be installed by a licensed plumber or gas fitter when installed within the Commonwealth
of Massachusetts.
DISCONNECT POWER TO THE OVEN BEFORE SERVICING OR CLEANING.
NO ATTEMPT SHOULD BE MADE TO OPERATE THIS APPLIANCE DURING A POWER FAILURE
ANSI Z83.11:2016 Ed.4
CSA 1.8:2016 Ed.4
ANSI/NSF 4:2016

Bistro Line / Phoenix
Service Manual
PG 6 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
OPERATION SEQUENCE
WOOD STONE BISTRO / PHOENIX OVEN
OPERATION SEQUENCE
COMMERCIAL (BL/PX) MODELS
Power ON
Control displays floor temperature- Control
sends power to Gas Valve- Gas Valve powers
glow coil on Pilot and sends gas to Pilot
Pilot does not light- Valve will retry
for 90 seconds- Then lock out for
5 minutes if Pilot does not light
Pilot lights- Valve senses
Pilot flame- Glow coil off
Valve sends gas to
Burner- Burner lights
Burner runs as long as oven is turned on-
Temperature is controlled by adjusting the
flame height using the knob on the front of
the oven
Note: Ovens equipped with 2 Radiant Burners
will have a second Valve, SV-3, 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.

Bistro Line / Phoenix
Service Manual
PG 7 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
CONTROL PANEL: SINGLE BURNER
COMPONENT LAYOUT
CONTROL PANEL — SINGLE BURNER, VIEWED FROM BELOW
Flame Height
Control Knob
Throttle
Valve
SV-2
Gas Valve
Resettable Fuse
(120 VAC only)
Transformer
REV:
DATE:
PART #:
Bellingham, WA 360/650-1111 www.woodstone-corp.com
002-603030-LP-BH
BH 3030 Control SS 120V LP
General Arrangement
1/24/2017
scottb2
DIMENSIONS ARE ININCHES
TOLERANCES: LINEAR ±1/2 [±10mm], ANGULAR ±2°
UNLESS NOTED OTHERWISE
DWN BY:
SHEET:
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF WOOD STONE CORPORATION
ANY REPRODUCTION OR USE IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF WOOD STONE IS PROHIBITED
An ongoing program of product improvement may require us to
change specifications without notice.
\\SHASTA\dfs\CAD\1_MarkM_Prelim\Misc_Files\Bistro Controls\For Bistro Service Manual 002-60BH_Bistro_Home_Control_Box-1.dft
1 of 2
Bistro Home
Throttle Rod
Bushing
Sleeve
Bearing
(New as of
1/26/17)
Cotter Pin
Controller
Thermocouple
Connector
Temp
Display/Oven
Controller
Circuit Board
(mounted on
backside)
5A & 2A Fuses
(200–240 VAC only
Not shown)

Bistro Line / Phoenix
Service Manual
PG 8 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
CONTROL PANEL: DUAL BURNER
COMPONENT LAYOUT
CONTROL PANEL — DUAL BURNER, VIEWED FROM BELOW
Controller
Burner
Disable
Switch
Flame Height Control Knobs
Throttle Valve Throttle ValveSV-2 Gas
Control Valve
SV-3 Gas
Control Valve

Bistro Line / Phoenix
Service Manual
PG 9 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
COMPONENT LAYOUT: T-BURNER
CONTROL PANEL, PIPING AND RADIANT BURNER VIEW — “T” STYLE BURNER
Igniter
Wires
Junction Box
Pilot
Tube
Gas Control
Valve (SV2)
Flex Line
to Burner
Temperature Probe
(Thermocouple)
Radiant Burner Assembly
Burner Orifice

Bistro Line / Phoenix
Service Manual
PG 10 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
COMPONENT LAYOUT: JET BURNER
CONTROL PANEL, PIPING AND RADIANT BURNER VIEW - “JET” BURNER
Pilot/Igniter
Flame Retention Spring
Burner Jets
Radiant Burner Assembly
Junction Box
Pilot Tube
Gas Control Valve (SV-2)
Igniter Wires
Flex Piping to Burner
Temperature Probe
(Thermocouple)

Bistro Line / Phoenix
Service Manual
PG 11 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
COMPONENT LAYOUT: DUAL BURNER
Radiant Burner
assemblies
CONTROL PANEL, PIPING AND RADIANT BURNER VIEW - DUAL BURNER
Pilot/Igniter
Flame
Retention
Spring
Burner Jets
Pilot Tube
Pilot Tube
Gas Control
Valve (SV-2)
Gas Control
Valve (SV-3)
Igniter
Wires
Flex Piping
to Burner
Flex line to
Burner
Temperature
Probe
(Thermocouple)

Bistro Line / Phoenix
Service Manual
PG 12 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
TROUBLESHOOTING GUIDE
Oven does not turn on- Display is
blank�
1. Power supplying oven is turned off, or the circuit breaker or fuse on the
circuit supplying the oven has tripped or blown� Incorrect voltage being
supplied to the oven� Incoming voltage should be as specified on the oven�
220-240 VAC models:
2. One or both fuses on the oven Control Box has blown� Correct any shorts,
repair or replace any damaged wiring or components� Replace the blown
fuses�
3. Check for 24 VAC at the input to the Control Board� If 24 VAC is present at
the Control Board and the unit will not turn on (display does not light) replace
the Control Board� If 24 VAC is not present at the Control Board, check the
5 A fuse� If the fuse is blown, check for shorts� Also verify that neither of the
Thermocouple leads is shorted to ground� If there is continuity to ground
(earth) through either of the Thermocouple leads, the Thermocouple should
be replaced� If the fuse is good, check for correct incoming power to the
Transformer� If there is no power to the Transformer, recheck Step 1 and
Step 2 above� If incoming voltage is correct to the Transformer, check for 24
VAC at the output of the Transformer� If 24 VAC is not present, TURN OFF
INCOMING POWER TO THE OVEN� Then verify that all wiring connections
on the Transformer are tight, and that the wires are connected as specified
for the voltage supplied to the oven� Turn power back on and retry� If 24
VAC is still not present, replace the Transformer� If 24 VAC is present at the
Transformer, but not at the Control Board, recheck 5 A fuse, wiring, and wire
connections between the Transformer and Control Board�
Continued on next page >
NOTE:
200-240 VAC models are equipped
with a 2 A fuse on the incoming power,
and a 5 A fuse on the low voltage
output of the Transformer�
100-120 VAC models have a resettable
circuit breaker on the Transformer
instead of fuses�
TROUBLESHOOTING AND REPAIR
SYMPTOM PROBABLE CAUSE/SOLUTION

Bistro Line / Phoenix
Service Manual
PG 13 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
TROUBLESHOOTING GUIDE
SYMPTOM PROBABLE CAUSE/SOLUTION
100-120 VAC models:
1. Circuit breaker on the Transformer has tripped� Correct any shorts, repair or
replace any damaged wiring or components� Reset the circuit breaker�
2. Check for 24 VAC at the input to the Control Board� If 24 VAC is present at
the Control Board and the unit will not turn on (display does not light) replace
the Control Board� If 24 VAC is not present at the Control Board, check the
circuit breaker on the Transformer� If the circuit breaker has tripped, check
for shorts�
Also verify that neither of the Thermocouple leads is shorted to ground� If
there is continuity to ground (earth) through either of the Thermocouple
leads, the Thermocouple should be replaced� If the circuit breaker has not
tripped, check for correct incoming power to the Transformer� If there is no
power to the Transformer, recheck Step 1 and Step 2 above� If incoming
voltage is correct to the Transformer, check for 24 VAC at the output of the
Transformer� If 24 VAC is not present, TURN OFF INCOMING POWER TO THE
OVEN� Then verify that all wiring connections to the Transformer are tight�
Turn power back on and retry� If 24 VAC is still not present, replace the
Transformer� If 24 VAC is present at the Transformer, but not at the Control
Board, recheck circuit breaker on Transformer, wiring, and wire connections
between the Transformer and Control Board�
< Continued from previous page

Bistro Line / Phoenix
Service Manual
PG 14 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
TROUBLESHOOTING GUIDE
1. Wire connections at the SV-2 Gas Valve are loose or unplugged� Verify that
the MOLEX connectors for the SV-2 Wire Harness and the Igniter Wires are
securely plugged into the Gas Valve� Make sure that the pins are locked into
the connector body�
3. Abrasion of the Pilot Igniter Wires� If there is a wire tie on the Igniter Wires,
carefully remove it and uncoil the wires and separate them so there is as little
contact as possible between them�
2. Moisture� If the Valve has gotten wet replace it� Also, the Pilot/Igniter will not
function correctly if Igniter Wires have gotten wet� If the Igniter Wires are wet,
turn the oven off and carefully uncoil the wires and separate them so there is
as little contact between them as possible, then restart oven�
4. Broken glow coil on the Pilot Igniter� Test for continuity at the Igniter MOLEX
connector� Between the two adjacent wires on the connector you should read
about 3�5 ohms� If circuit is open replace the Igniter� If this is the case, the
Burner should be removed for cleaning and inspection� See the Common
Repair Procedures section of this manual� If the Igniter tests ok, verify 24
VAC going to the Gas Valve� This can be tested at the MOLEX connector on
the wiring harness� Disconnect the wiring harness from the Gas Valve before
checking voltage� Do not attempt to check for voltage while it is connected to
the Gas Valve� With the oven on you should read 24 VAC between the brown
and white wires� If the voltage is fine replace the Gas Valve�
Warning: Do not attempt to read voltages at the connectors on the Honeywell
Gas Valve. Doing so may damage the electronics in the Valve. Any time
it is necessary to replace a Gas Valve or Igniter, the Burner should be
removed for inspection and cleaned if necessary. Most Valve and Igniter
failures are caused by debris, either through physical damage to the
Igniter or causing a short to the Valve.
Note: On any call where the complaint is that the Radiant Burner will not light,
stay lit or is going out intermittently, the Radiant Burner should be removed
for inspection and cleaning� The majority of Radiant Burner problems can be
traced to debris in the Burner� See the REPAIR PROCEDURES section of this
manual�
Burner does not light, oven Controller
is on, and switch on the Gas Valve
(SV2) is in the on position, no visible
glow from the side of the Burner�
SYMPTOM PROBABLE CAUSE/SOLUTION

Bistro Line / Phoenix
Service Manual
PG 15 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
TROUBLESHOOTING GUIDE
Burner does not light, there
is a visible glow on one
side of the Burner, or at the
center of the Burner on “T”
Style Burners�
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 you begin to smell gas and the oven is still not lighting,
proceed to step 3� 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 much more quickly from the line� TURN OFF THE OVEN AT
THE CONTROLLER� EXTINGUISH ALL OPEN FLAMES BEFORE BLEEDING THE GAS LINE�
Remove the plug on the inlet side of the Gas Valve using a 3/16" hex key wrench� Allow
the air to bleed out until you smell gas� Re-install plug� Allow the gas to dissipate and then
turn the oven on� If oven does not light after 30 seconds, turn it off and back on again—
it may still be necessary to do this a few times� DO NOT LEAVE THE OVEN UNATTENDED
WHILE THE INLET PLUG IS REMOVED FROM THE GAS VALVE!
3. Verify that the switch on the Gas Valve is in the ON position� The Valve will power the
Igniter even if the switch is in the OFF position�
4. Check for loose wire connections at the SV-2 Gas Valve� Verify that the MOLEX connectors
for the SV-2 Wire Harness and Igniter Wires are securely plugged into the Gas Valve�
Make sure the pins are securely locked in to the connector body�
If Burner still does not light, proceed with the following:
5. Try to determine if the Pilot is actually lighting� DO NOT CLIMB INTO THE OVEN OR PLACE
FACE OVER BURNER! It can be difficult to see and can be confused with the glow from
the Igniter—use an inspection mirror if possible� If the Pilot is actually lighting, make sure
Flame Rod is clean and that no debris is interfering with the flame� Pilot flame should
envelop 3/8" to 1/2" of the Flame Rod, and make continuous contact with the forked
ground electrode� If the flame is not making good contact, gas pressure is low or Pilot
Orifice is dirty� If flame is overshooting, the Pilot Orifice may be missing, or Pilot may be
adjusted too high at the Gas Valve� If Pilot is not lighting make sure the Pilot Orifice is not
plugged� See the COMMON REPAIR PROCEDURES section of this manual� If flame is good,
recheck Igniter Wires, make sure pins are seated etc� If Burner still does not light, replace
Pilot/Igniter� If after replacing Pilot/Igniter the Burner still does not light, replace the Gas
Valve�
SYMPTOM PROBABLE CAUSE/SOLUTION

Bistro Line / Phoenix
Service Manual
PG 16 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
TROUBLESHOOTING GUIDE
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 the flame turned all the way up� If
the correct pressure (as shown on the oven data plate) cannot be obtained, the gas
supply is inadequate� Check for undersized Piping, shut off Valves, etc�
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 (clockwise) until the Pilot goes out� Then back the screw out to just beyond
the point where the Pilot relights�
5. Excessive venting causing the Pilot flame to lift away from the Flame Rod� Correct
the airflow problem and make sure the Igniter gasket is in place (gasket used only on
Jet style Burners)� 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 cuts out intermittently�
Note: Do not run oven with Night
Door(s) in place!
1. Verify that gas is going to the Burner using a manometer at the port outlet of the
Honeywell Gas Valve� Check the Equipment Nameplate beneath the oven for the
specified pressure� Adjust the Regulator on the Gas Valve if necessary� 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 Burner, drop the Burner and clean, make sure
all Jets are clean and that the 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 the Pilot Orifice is not plugged� Check that Pilot flame is not set
too low, and that the oven is not over vented�
Burner is not lighting, but Pilot
appears to be lighting�
SYMPTOM PROBABLE CAUSE/SOLUTION

Bistro Line / Phoenix
Service Manual
PG 17 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
TROUBLESHOOTING GUIDE
Flame height is low� The flame
should be approximately 10-12"
inches tall when turned all the
way up�
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�
Disassemble and clean the Valve; see Common Repair Procedures section of this
manual�
2. Debris in the Burner� Remove and clean; see COMMON REPAIR PROCEDURES
section of this manual�
SYMPTOM PROBABLE CAUSE/SOLUTION

Bistro Line / Phoenix
Service Manual
PG 18 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
TROUBLESHOOTING GUIDE
SYMPTOM PROBABLE CAUSE/SOLUTION
Soot is forming near the Burner�
Note: Do not run oven with Night
Door(s) in place!
1. Some sooting is normal when the oven is cold� This will burn away when the
oven reaches operating temperature�
2. 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�
3. If Burner is clean, check that the oven is properly configured for the gas
being supplied� Contact your dealer�
Burner doesn’t light or goes out,
and the Igniter Wires are burned�
1. Loose Pilot Tube-tighten and replace Igniter
2. Inadequate venting or negative air-see oven installation instructions� Make
sure Rear Panel has been installed on the oven�
Radiant Flame height is much higher
on the Igniter side of the Burner,
(usually the left side or center)� 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�
Display reads “OPEN”� 1. Check that Thermocouple is securely plugged into the receptacle on the oven
Control Box� Check that wires are not loose or have been pulled out of the
connector� Inspect Thermocouple wire for damage�
2. Damaged Thermocouple� Unplug the Thermocouple connector and check
for continuity between the two leads� If there is no continuity replace the
Thermocouple�
See the REPAIR PROCEDURES section of this manual.

Bistro Line / Phoenix
Service Manual
PG 19 OF 32
M0008.09 DECEMBER 2017
REPAIR PROCEDURES
COMMON REPAIR PROCEDURES
NOTE: Remove the front panel on the oven to access all 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� Burner gas pressure measurements should be taken at the outlet port on the Gas Control Valve� Make sure that
the Throttle Valve is fully open (maximum flame height) when taking the pressure reading� Where it is suspected that the incoming
pressure is inadequate, test the incoming pressure (at the inlet port on the Gas Valve) with the oven off and then with the oven on
and the Burner running� If the incoming pressure drops significantly with the oven running, and the proper pressures cannot be
obtained at the Burner, the gas supply is inadequate� Look for Regulators external to the oven that are set too low, partially closed
Valves or undersized Piping� The Piping and shutoff Valves supplying the oven must have a minimum O�D� of 3/4" (19mm) - the
same as that of the inlet connection on the oven� Depending on the length of the pipe run it may need to be larger in diameter�
Consult a qualified gas Piping installer to deal with any supply Piping issues� The specified pressure for the Burner may be found
on the Equipment Nameplate, located on the back of the Control Box, in the compartment below the oven�
REMOVAL AND CLEANING OF RADIANT JETTED 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. Unplug the MOLEX connector for the Igniter from the Gas Valve�
3. Disconnect the Pilot Tube at the Gas Valve�
4. Disconnect the Flexible Gas Piping where it attaches below the Burner�
5. From beneath the oven, 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 the 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 and can fall out if you are not careful�
Any Burner Jets that are clogged should be removed from the Burner Manifold to prevent debris entering the Manifold while
cleaning� 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� Then remove the two brackets that hold the
Burner Manifold in place� Remove the Manifold, then remove the individual Jets� Clean out each Jet� Make sure to reinstall so
the hexagonal part of the Jet is closest to the Burner Manifold� Make sure to reinstall the Flame Retention Spring�
Note: On BL-4355-LR models built after March 2017, there will be a 7/16" SS Washer on the top of each Burner Jet�
Make certain the washer is in place before reinstalling the Burner Manifold (see drawing below)�
8. To reinstall Burner follow the removal steps in reverse�
9. Check for gas leaks using soap solution with the Burner running�
Avoid getting soap solution on Valve or Igniter Wires�
BL-4533-LR
BURNER MANIFOLD
(after March 2017)
Burner Manifold
Burner Jet
Washer

Bistro Line / Phoenix
Service Manual
PG 20 OF 32
M0008.09 DECEMBER 2017
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 [phone]
FAX [phone]
E-MAIL [e-mail]
woodstone-corp.com
REPAIR PROCEDURES
REMOVAL AND CLEANING OF “T” 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. Remove the Burner Tray from beneath the oven by removing the wing nut (towards the back of the oven), then pull the Tray
slightly to clear the front tabs and lower it out�
3. Unplug the MOLEX connector for the Igniter from the Gas Valve�
4. Disconnect the Flexible Gas Piping where it attaches to the Burner�
5. Separate the Pilot Tube at the center union�
6. From beneath the oven, carefully remove the two 1/4" bolts and nuts holding the Burner in place and lower the Burner out of
the well� Caution: Watch out for falling debris while removing the Burner�
7. Blow out Burner with air until debris is gone�
8. To reinstall Burner follow the removal steps in reverse�
9. Check for gas leaks using soap solution with the Burner running� Avoid getting soap solution on Valve or Igniter Wires�
PILOT/IGNITER REPLACEMENT – RADIANT BURNER
If replacing an Igniter on a Radiant Burner, we recommend removing the Burner—see Removal and Cleaning of Radiant Burner
on previous page� While the Igniter can be replaced without Burner removal, we find that the cause for the Igniter failure is
commonly debris in the Burner� Be aware of the Pilot Orifice located between the brass Compression Fitting and the Igniter� The
Igniter is attached to the Burner can with a right angle bracket� Remove the screw holding the bracket to the Burner can, and
remove the Igniter� Remove the bracket from the old Igniter� Attach the bracket to the new Igniter and reinstall� Whenever you are
removing or replacing the Radiant Burner Igniter you should also replace the Igniter gasket�