DCS WO-227SS How to use

WALL OVEN
TECHNICAL SERVICE GUIDE
■ WO-227SS
■ WO-227PL
■ WO-227GN
■ WO-227BL
■ WO-227WT
■ WO-227BK
■ WO-230SS
■ WO-230PL
■ WO-230GN
■ WO-230BL
■ WO-230WT
■ WO-230BK
■ WO-127SS
■ WO-127PL
■ WO-127GN
■ WO-127BL
■ WO-127WT
■ WO-127BK
■ WO-130SS
■ WO-130PL
■ WO-130GN
■ WO-130BL
■ WO-130WT
■ WO-130BK
Models:

1
To O ur Valued S ervice Partners
DCS is a leading manufacturer of premium quality cooking and speciality appliances for both
residential and professional use. We are proud of our reputation for quality and our commitment to
customer satisfaction. We have set high standards for ourselves along with our network of
independent Part Distributors and Service Agencies.
As an Authorized Part Distributor or Authorized Service Agency we are counting on you to represent
our company in a professional manner. We are here to help support you should you need help.
Our technical support center is staffed by experienced technicians eager to help you. Our number is
[phone] and we are available 6:00 am (pst) to 4:30 pm (pst).
In addition, should we be needed, our team of customer service representatives are available to help
you resolve any customer inquiry. The telephone number [phone] (6 am - 4:30 pm pst)
Remember, we are here to support you and our customers. This service manual is designed to provide
you with the information needed to properly diagnose and repair the Wall Oven. We are proud of this
appliance as we believe it offers a terrific cooking experience. Your understanding of the design and
function of this appliance is an important part of the repair process.
If you need help please contact us.
Sincerely,
DCS, Customer Service Team

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Tab le O f Contents
SAFETY PRACTICES & PRECAUTIONS ...............................................................................3
SPECIFICATIONS ..............................................................................................................................4-7
PRODUCT IDENTIFICATION ......................................................................................................8
PARTS IDENTIFICATION
ECO Failure Codes.........................................................................................................................9
Oven Can Assembly .....................................................................................................................10
Oven Can Parts List .....................................................................................................................11
Oven Door Assembly...................................................................................................................12
Oven Door Parts List ............................................................................................................13-15
Display Assembly ...........................................................................................................................16
Display Parts List...........................................................................................................................17
Upper Oven Assembly .................................................................................................................18
Upper Oven Parts List.................................................................................................................19
Lower Oven Assembly.................................................................................................................20
Lower Oven Parts List.................................................................................................................21
Bake Parts List / Assembly ..........................................................................................................22
Hardware Parts List................................................................................................................23-24
OPERATING INSTRUCTIONS .............................................................................................25-32
Oven Display / Setting Clock .....................................................................................................25
Setting Bake Mode ..................................................................................................................25-26
Convection Bake .....................................................................................................................26-27
Convection Roast....................................................................................................................27-28
Setting Broil ....................................................................................................................................28
Setting Timers ................................................................................................................................29
Using Food Probe ...................................................................................................................29-30
Timed Cooking........................................................................................................................30-31
Oven Calibration...........................................................................................................................32
Temperature Settings ...................................................................................................................32
COMPONENT ACCESS .............................................................................................................33-36
Element Removal / Convection Motor....................................................................................33
Rear Components.........................................................................................................................34
Blower Motor / Thermostat.......................................................................................................35
High Temperature Cut-out..........................................................................................................36
OVEN CONTROL REMOVAL ................................................................................................37-38
LATCH REMOVAL ...............................................................................................................................39
ELEMENT REPLACEMENT ...........................................................................................................40
CURRENT FLOW & OPERATION .....................................................................................41-43
Elements ..........................................................................................................................................41
Upper Oven .............................................................................................................................41-42
Lower Oven .............................................................................................................................42-43
WARRANTY ............................................................................................................................................44

3
Safety Practices & Precautions
Please read all sections of this manual and retain for future reference.
WARNING: If these important safety precautions are not followed exactly, a fire or explosion
may result, causing property damage, personal injury, or death.
• Never store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
NOTE: Installation and service must be performed by a qualified installer, and service agency.
Electrical requirements: 240V 35amp (27 & 30 single oven) and 50amp for (227 &
230 double oven). Hard wire should be use.
When properly cared for, your new DCS appliance has been designed to be safe,and reliable.When
using this restaurant caliber appliance, use it with extreme care, as this type appliance provides intense
heat and can increase the accident potential. Basic safety precautions must be followed when using
kitchen appliances, including the following:
Read this Service & Parts Manual thoroughly before servicing appliance.This will help to reduce the risk
of fire, electric shock, or injury to persons. Begin by insuring proper installation and servicing. Follow
the installation instructions which came with this appliance. Be sure to have a qualified technician install
and ground this appliance before using.
• Do not repair or replace any part of this appliance unless it is specifically recommended in this
manual.All other servicing should be referred to a qualified service technician.
WARNING: Children should not be left alone or unattended in an area where appliances are
in use.They should never be allowed to turn knobs, push buttons, sit or stand on
any part of an appliance.
CAUTION: Do not store items of interest to children on or around the Wall Oven. Children
could be seriously injured if they should climb onto or reach across the appliance
to reach these items.
• Never store anything in the Wall Oven. Flammable materials can accidentally catch fire, plastic items
may melt or ignite and other types of items could be ruined.
• Do not hang articles from any part of the appliance. Some fabrics are quite flammable and may catch
on fire.
• Do not use water on grease fires.Turn all knobs OFF, then smother fire with baking soda or use a dry
chemical or foam-type fire extinguisher.
• Be certain to use only dry pot holders: moist or damp pot holders on hot surfaces may cause burn
injury from steam.
• Do not use a towel or other bulky cloth in place of potholders.

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Specifications / D imens ions
Bottom Trim screws
25-1/2"
23-7/8"
29-15/16" 29-3/8"
26-7/8"
Interior Dimension = 16"H x 22"W x 18-5/8"D
Rack Dimension = 21-3/8" W x 15"D
Front Side
WO-127 27” Single Wall Oven
Conduit
box centered
2" below bottom
of oven
2x4's or
similar
runners
or solid
structure
support
27"
2x4's or
similar supports Floor
(Suggested
distance from
floor 6" min.)
min. WALL OVEN
Cut Out Dimensions
WALL OVEN
Cabinet Dimensions
25-1/2"
29-1/2"

Specifications / D imens ions
5
WO-227 27” Double Wall Oven
Bottom Trim screws
25-1/2"
23-7/8"
54-3/16 "
54-15/16 "
Interior Dimension = 16"H x 22"W x 18-5/8"D
Rack Dimension = 21-3/8"W x 15"D
26-7/8"
Front Side
WALL OVEN
Cut Out Dimensions
WALL OVEN
Cabinet Dimensions
2x4's or
similar
runners
or solid
structure
support
Conduit
box centered
2" below bottom
of oven
2x4's or
similar supports Floor
(Suggested
distance from
floor 6" min.)
27"
min.
25-1/2"
54-3/8"
NOTE: Oven does not have to be vented to the outside

Specifications / D imens ions
6
Bottom Trim screws
25-1/2"
23-7/8"
29-7/8"
29-15/16" 29-3/8"
Interior Dimension = 16"H x 25"W x 18-5/8"D
Rack Dimension = 24-3/8"W x 15"D
Front Side
WO-130 30” Single Wall Oven
Conduit
box centered
2" below bottom
of oven
2x4's or
similar
runners
or solid
structure
support
30"
2x4's or
similar supports Floor
(Suggested
distance from
floor 6" min.)
WALL OVEN
Cut Out Dimensions
WALL OVEN
Cabinet Dimensions
min.
29-1/2"
28-1/2"
Note:Do not use an extension cord with this appliance, the unit must be hard wired directly to the electrical source.

Specifications / D imens ions
7
Bottom Trim screws
25-1/2"
23-7/8"
54-3/16 "
54-15/16 "
29-7/8"
Interior Dimension = 16"H x 25"W x 18-5/8"D
Rack Dimension = 24-3/8"W x 15"D
Front Side
WO-230 30” Double Wall Oven
Conduit
box centered
2" below bottom
of oven
2x4's or
similar
runners
or solid
structure
support
30"
2x4's or
similar supports Floor
(Suggested
distance from
floor 6" min.)
min.
WALL OVEN
Cut Out Dimensions
WALL OVEN
Cabinet Dimensions
54-3/8"
28-1/2"

8
Product I dentif ication
ELECTRONIC OVEN CONTROL
CATALYS T
AIR DUCT
OVEN LIGHT
CONVECTION FAN
HIDDEN
CONVECTION
ELEMENT
CONCEALED
BROIL
ELEMENT
DOOR
LOCK*
TOUCH PAD
FUNCTION KEYS
COOLING
FAN
VENTS
HIDDEN
BAKE
ELEMENT
(OVEN FLOOR)
FOOD
PROBE
(upper oven only)
12:30
SIX RACK POSITIONS:
6
5
4
3
2
1
*Door Lock only functions in the self clean mode
Double oven display shown
(behind convection baffle)
SERIAL #
LOCATION
MODEL NUMBER / SERIAL IDENTIFICATION
A B C D E F
WO – 1 – 27 - SS - BR - PSH
A. Product Identifier
1. WO = Wall Oven
B. Oven Quantity
1. 1= Single
2. 2= Double
C. Oven Size
1. 27” Width
2. 30” Width
D. Color
1. SS= Stainless Steel
2. BK= Black
3. BL= Blue
4. GN= Green
5. WT= White
E. Brass Trim
F. Pro-Style Handle
A= Manufactured Year. Adding the first
two digits gives you the last digit
of the year.
B= The Month of the year.
(example:A=January, B= February, etc…)
C= Service / Engineering Code
SERIAL NUMBER
01A00000A
ABC

Parts Identif ication
EOC FAILURE CODES
All failure modes give a visual and audible alarm. Failure modes can be canceled, but will return after
the appropriate debounce time if the error condition still exists.
—F7— ALARM
A shorted key for 32 seconds in a row will activate a “CANCEL” feature in both ovens.This applies to
all keys, including CANCEL.“-F7-” will be displayed in the time digits and the failure tone will sound
until the CANCEL key is pressed. If CANCEL is the shorted key, pushing another valid function key
will clear the error display and tone.This test will always be active. If other than Stop Time,Timer 1 or
Timer 2 is shorted at power up, the F7 alarm is given immediately.
-FC- ALARM
A breakdown in serial communications between the user interface board and the temperature control
board that is detected by the User Interface board for 4 to 5 seconds will cause an -FC- alarm to be
given.This error alarm is always active.
-F?- Temperature control board Alarms
Additional failure alarms can be generated by the temperature control board.These errors are
transmitted by way of the serial port to be displayed and audibly annunciated.These alarms will be
displayed in the appropriate red temperature display for the oven affected.The appropriate oven will
also be canceled.The possible errors are a follows.
-Fl- Alarm, Element supervisor enabled.
-F2- Over temp Alarm.
-F3- Open oven sensor.
-F4- Shorted oven sensor
-F5- Element supervisor disabled (upper oven).
-F8- Shorted meat probe alarm.
-F9- Error in door lock functions. (upper oven)
-FF- Bad A/D
-F-- Communications error detected by the power relay board. (upper oven)
-Fr- A lower oven error that is equivalent to either an F5, F9 or F- error of the upper oven.
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