Dacor CPS User manual

Technical Manual

Technical Manual - Page 2
POLICIES
POLICIES
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AND
PROCEDURES
PROCEDURES
Product UL label location
CABP3 UL marking is on the serial number label attached to the housing cover next to the access plate.
DMO UL marking is on the serial number label inside the oven against the left wall. To view, open the oven door.
EHD UL marking is on the serial number label located in the rear panel. To view, remove the filters.
ERD30S06 UL marking is in the Rating Label located in the left side of the kick panel. To view, open the door.
UL label is also in the serial number located inside the unit in the right hand side wall. To view, look
through the intake grill slots.
ERSD30 UL marking is in the Rating Label located in the left side of the kick panel. To view, open the door.
UL label is also in the serial number located inside the unit in the right hand side wall. To view, look
through the intake grill slots.
ERSD36 UL marking is in the Rating Label and serial number label located in the wall behind the door latch. To
view, open the oven door and look through the intake grill slots.
ERSD48 UL marking is in the Rating Label and serial number label located in the wall behind the door latch of the
36” oven. To view, open the 36” oven door and look through the intake grill slots.
ESG UL marking is in the Rating Label located in the back of the unit right behind the left rear burner.
ETT/CER UL marking is on the serial number label located on the bottom of the unit next to the electrical connection.
MODULES. UL marking (if any), is on the serial number label located in the opposite side of the electrical connection
(beneath the handle).
PGR UL marking is on the front of the front case top. To view, open the oven door and look through the
intake grill slots.
REMP3 UL marking is on the serial number label attached to the main housing wrap behind the protective rack
left of the access plate.
RSD UL marking is in the Rating Label and serial number label located inside the storage compartment at the
left hand side wall.
RSE UL marking is on the serial number label located inside the storage compartment at the left hand side wall.
RV UL marking is on the serial number label located in the front plenum above the access panel.
SGM/SGMEM UL marking is in the Rating Label underneath of unit next to gas connection. For SGM’s only the UL
marking is also on the serial number label located next to the rating label.
WALL OVENS.
DOUBLE OVENS UL marking is on the serial number label located inside the intake grill, at the left hand side of the door
latch. To view, open the upper door and look through the slots of the intake grill.
SINGLE OVENS UL marking is on the serial number label located inside the intake grill, at the left hand side of the door
latch. To view, open the door and look through the slots of the intake grill.
WARMING OVENS UL marking is on the serial number label located at the bottom of the cabinet at the left hand side. To view,
the drawer must be pulled completely open or removed.

Technical Manual - Page 3
ERC Failure Codes
-F0- Shorted Or Jammed Input Device
This failure will appear if a shorted or jammed input device is defective. Possible causes include
shorted wires or a defective membrane switch.
-F1- Alarm “System Watchdog Circuit”
The system will detect a failure in the internal watchdog element relay circuits and will activate a
cancel feature. F1 will be displayed in the time digits and will beep until the cancel button or another
function is selected. An F1 failure could be detected in cook or time of day mode. With an F1 failure
the ERC is picking up a command to supply heat without receiving an input from the membrane. The
watch dog circuit is designed to prevent this.
If the beep continues after pressing cancel check the main control (ERC)
-F2- Alarm Heating Mode High Temperature
Is activated when the ERC senses a runaway heat condition or when the temperature exceeds
“runaway limits”. The ERC will beep until the cancel or another function is selected. If the alarm
repeats the F2 alarm check the oven sensor and wiring after first checking for a stuck relay. If alarm
goes away verify the oven will complete a clean cycle without any type of failure.
-F3- Alarm Shorted Oven Sensor
Occurs when the ERC senses a short circuit in the oven temperature sensor for 16 temperature conver
sions in a row. F-3 will appear in the digits and a beeping will be heard. If the alarm does not go away
after pressing the cancel key check the sensor and wiring.
**Important Note:
This test will only be performed while a cooking operation is being attempted. The F3 alarm will not
be displayed in the time of day mode.
-F4- Alarm Open Oven Sensor
“F4” will be displayed along with a beeping if the ERC determines an open oven temperature sensor
circuit for 16 consecutive oven temperature conversions.
**Important note: This test will only be performed while a cooking operation is being attempted.
The F4 mesage will not be displayed in the time of day mode.
**Important note: If the oven sensor is open the bake modes cannot be activated. The controls
will be non-responsive. Look for this failure, as at first appearance you may suspect the ERC or
selector instead of an open sensor. A strange number may also appear in this failure mode.

Technical Manual - Page 4
Failure Codes
(Continued)
-F5- This Code Is Not Used
-F6- Alarm EEPROM Checksum Error
The brain of this oven (so to speak) operates a series of software commands. These commands control
the various features and functions of the oven. A numerical value has been assigned to each function or
operation. The numerical values can be added up - this is the check sum operation. Every time the
system is powered up and after each clean cycle the system performs a check sum and compares
the value to the value programmed into the software. (stored in memory.)
An EEPROM check sum error or F-6 alarm occurs when the values differ. Only the time of day and
timer operation will operate. If you receive a F-6 alarm replace the ERC.
-F7- Alarm Door Lock Enabled Above Temperature
“F7” wil appear in the digits and a beeping will be heard if a failure in the clean lock/ phase circuitry is
detected for 16 seconds in a row. Check the door lock switches and door adjustments.
-F8- Alarm Door Locking Switch
Occurs when operating the door lock motor if the motor runs for two minutes without seeing the phase
switch change positions. This failure will normally occur only when a clean mode is started. If it
occurs check the door switches and wiring.

Technical Manual - Page 5
POLICIES
POLICIES
AND
AND
PROCEDURES
PROCEDURES
Dacor Model Number Designations
CPS Convection Plus – single oven, convection
127 – Single oven 27 inch
227 – Double 27 inch, top only convection
CPD Double convection ovens
PCS/D
MCS/D
ECS/D
DMO Microwave Oven
ECPS Epicure Series, single oven, convection
127 – Single oven 27 inch
227 – Double 27 inch, top only convection
ECPD Epicure Series, Double Convection ovens
CPTS Touch Top, Single Convection
CPTD Touch Top, Double Convection
RSG Range – All Gas
RSD Range – Dual Fuel (Electric Oven)
RSE Range – All Electric
ERSD Range, 30” -- Epicure Dual Fuel (Electric Oven) 15,000 BTU’s
ERSD Range, 36&48” Epicure Dual Fuel Range Gas IR Broiler
RV Raised vent
REMP3 Remote Blower
CABP3 Cabinet Blower
SGM Cooktop –Sealed Burner Gas Metal Top 30,36,46 inches
SGMEM Cooktop – Sealed Gas Metal plus Electric Module 36,46 inches
SGG Cooktop – Sealed Gas Glass Top
ESG 6 Burner Cooktop, 15,000 BTU’s 36, 48 inches
ECC Electric Convertible Cooktop
Modules:
EM1 2 coil elements
EM3 Wok/Canning
EM4 Ceramic Glass
EM5 Barbecue
CER Electric Ceramic Cooktop
(ceramic electric radiant)
ETT Electric Touchtop Cooktop
(electric touch top)
EWO Epicure Warming Oven
MWO Millennia Warming Oven
PWO Preference Warming Ovens
Accessories:
AE13 Griddle for Electric Module
AG13 Griddle for Gas Grate
A20A Rotisserie
A30 Wok
ASP10 Simmer Plate
AG14 Griddle for Epicure Cooktops/Ranges
AG11 Griddle for 30” cooktop
AWR Wok Ring

Technical Manual - Page 6
POLICIES
POLICIES
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AND
PROCEDURES
PROCEDURES
SERIAL NUMBER FORMAT
2 LETTERS FOLLOWED BY 7 NUMBERS
ex: CA6520001 is an electric cooktop made in the last week of 1996
FIRST LETTER
A Accessories
B Blowers
C Electric Cooktops
D Displays
E Electric Modules
F Ranges
H Hoods
M Metal Cooktops/Gas & Dual Fuel
R Raised Vents
S Surface Vents
T Electric Cooktops – Ceran
V Wall Ovens
W Warmers
SECOND LETTER
Identifies the revision level of the model. New models start with an A and as product enhancements are made the
revision level will change. Letters Iand Owill not be used.
FIRST NUMBER
Last digit of year in which the product was manufactured
1 – 2001
2 – 2002
3 – 2003
4 – 1994
5 – 1995
6 – 1996
7 - 1997
8 – 1998
9 – 1999
0 – 2000
2nd and 3rd NUMBERS
01 THROUGH 52 indicates the week of the year that the product was produced
01 – week 1
02 – week 2
03 – week 3
etc.
The last four numbers are the actual serial number of the product.

Serial Number Format
In 2002 Dacor changed the serial number format slightly to accommodate additional product line growth by adding two (2)
characters each for product code and revision and two (2) digits for the year of manufacture.
Prior to the 38th week of 2002 the serial number format was:
A dash was added to separate the two codes - so that a serial number ABC representing product type AB at revision C
could not be confused as a product type A at revision BC. There is also a dash added between the revision code and year of
manufacture. The year code was increased so a unit manufactured in 1992 would not be confused for a unit manufactured
in 2002.
The new serial number format will read:
The new serial number format for a PGR30 manufactured at revision F on 9/18/02 with the unique number
of 1234 would read: K – F – 02381234.
The new format is being implemented on all product manufactured as of week number 38 of 2002.
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Technical Manual - Page 7
POLICIES
POLICIES
AND
AND
PROCEDURES
PROCEDURES
TO THE AUTHORIZED SERVICE COMPANY
Our mission is to ensure that Dacor customers receive prompt, courteous and professional service. We are here to
provide support to the servicer with technical information and replacement parts.
SCOPE
The customer warranty program provides home service on Dacor products, at no charge to the consumer.
The warranty begins from the date of original purchase or the date of installation. The warranties on
individual products vary, please see the actual warranty that accompanies each product. Some products carry
an extended parts warranty.
Warranty service must be performed by an authorized service agency in accordance with a written service
agreement provided by Dacor. See warranty matrix for a warranty description by product.
WHAT IS INCLUDED IN THE CUSTOMER WARRANTY PROGRAM
1. Travel time to consumer’s residence.
2. Diagnosis of the problem and completion of the repairs.
3. Replacement of warranty parts.
4. Distributor/Dealer stock merchandise. This includes repairs to correct any defect in materiel or workman-
ship. A SPECIAL AUTHORIZATION must be obtained in advance for all Distributor or Dealer stock
repairs (see section on Service Authorizations, page 4).
5. All repairs must be made in accordance with Dacor’s recommended procedures and industry accepted
repair techniques along with any governmental rules or guidelines. Only Genuine Dacor Replacement
Parts shall be used.
6. Repairs to correct defects in materials and/or workmanship as outlined in the product warranty.
WHAT IS NOT COVERED IN THE CUSTOMER WARRANTY PROGRAM
1. Repairs made on any unit in which the model and/or serial number have been altered, defaced or removed.
2. Routine maintenance as outlined in the Use and Care booklet. Such maintenance is the owner’s responsi-
bility.
3. Delivery, installation or reinstallation of any product unless an Authorization Number is obtained prior to
doing the work (see section on Service Authorizations).
4. Replacement of cooktop grates, burner caps, filters, knobs, grills or any other part removable for routine
maintenance.
5. Repairs associated with normal use and wear are not considered to be defects in materials and workman-
ship.
6. Repairs to correct errors in installation or misuse by the consumer.
7. Customer education.
8. Damage to the product caused by shipping or other means.

Technical Manual - Page 8
POLICIES
POLICIES
AND
AND
PROCEDURES
PROCEDURES
LABOR RATE STRUCTURE
A warranty claim shall be defined as charges allowed, based upon a previously approved labor rate, accepted by
Dacor and the authorized service agency to make necessary repairs as specified under the terms of the product
warranty. The negotiated rate is defined on the Contractors Rate Schedule. All deviations from this rate require
a Special Authorization (see Special Authorizations page7)
It is the policy of Dacor to negotiate service labor rates on an individual basis. Our intention is to be reasonable
and comparable for the market being serviced. The service labor rate, agreed to by the servicer, is factored to
include travel time, diagnostic and repair time.
TECHNICAL SUPPORT
Dacor has full time technical advisors available to help with diagnostics and problem solving. When contacting an
advisor you must have your authorized service agency number, the model and serial number of the product, and the
purchase date. Our technical advisors can be reached at [phone], Monday through Friday between the hours of
5:00 AM and 4:00 PM Pacific Standard Time.
CUSTOMER SUPPORT
The Customer Service Department provides support to Customers, Dealers, Product Distributors, Service Agencies and
Parts Distributors. They are responsible for resolving customer complaints. When evaluating a complaint they consider
the following:
AGE OF THE PRODUCT
SERVICE HISTORY
NATURE OF PROBLEM
COST AND EXTENT OF THE REMEDY
Periodically we may contact you for copies of repair invoices to help evaluate a customer inquiry. Our Customer Service
Department can be reached at [phone] Monday through Friday between the hours of 7:00 AM and 4:00 PM
Pacific Standard Time.
ADVERTISING PROGRAMS
Dacor does not offer an advertising or co-op program.
SERVICE LITERATURE
Upon acceptance as an authorized service agency or parts distributor, Dacor will provide one free set of service and
parts manuals. Periodic updates will be provided at no charge. Additional sets are available for purchase. Service
literature must be ordered directly from Dacor. It is the service agencies responsibility to keep current literature on
Dacor products. Dacor will supply service updates (field service bulletins) on a regular basis, at no charge, only to
authorized service agencies.
INSTRUCTIONS FOR SUBMITTING WARRANTY LABOR CLAIMS
Dacor warranty claims are processed and entered “online” at www.dacorservice.com. To begin processing your warranty
claims online, contact warranty administration or your regional technical manager to get your login and password.
CONSUMER AUDIT PROGRAM
All claims are subject to an audit by direct contact with the consumer, a field service, sales representative or by other
means. Any claim for service and/or parts the consumer denies receiving or conflicting consumer technicians statement
of service performed will be charged back to the servicer. All complaints of fraud will be turned over to the appropriate
POLICIES AND PROCEDURES

Technical Manual - Page 9
POLICIES
POLICIES
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PROCEDURES
PROCEDURES
governmental agency. Submitting fraudulent claims is grounds for immediate termination of the service agreement.
The consumer audit program will also include a customer satisfaction survey. Consumer complaints, comments,
suggestions will be forwarded to the service agency.
PROOF OF PURCHASE
Proof of Purchase to verify the status of any warranties shall include original bill of sale, closing papers of the new
dwelling, cancelled check or occupancy papers in the case of a remodel. The model and serial numbers are required
on the NARDA form along with the purchase date. The accuracy of this information is the responsibility of the
service agency.
SPECIAL AUTHORIZATIONS
All Non Warranty, Dealer/Distributor stock, or extensive warranty repairs being charged to Dacor must have prior
approval from a Dacor Customer Service Representative and a written Service Authorization. The Service Authorization
number must be written on the NARDA invoice and submitted for payment in the same manner as a warranty claim.
See exhibit C for a copy of the Service Authorization form being used. Claims submitted without this number may
be delayed or declined.
RETURN AUTHORIZATIONS
For the return of a product or replacement part, Dacor requires and issues Return Authorizations (RA’s) A completed
authorization specifically describes the cost, product, or part being authorized for return. The return authorization
number must be written or clearly identified on the shipping container or the package may be refused. No credits or
payments other than specified on the authorization will be made unless Dacor amends that authorization.
Return Authorization for finished product is only considered when all service remedies are exhausted. Returned product
may be examined to determine or verify the previous service work performed on the product. The service agency will
be contacted about any errors or discrepancies.
PARTS DISTRIBUTION
Dacor sells parts to a network of independent parts distributors, who sell replacement parts to our network of
independent service agencies. Authorized service agencies receive a 25% discount from the published retail price.
Parts Distributors provide warranty parts and issue credits for warranty repairs directly to the service agency. It is the
responsibility of the service agency to establish an account or a business relationship with their local parts distributor.
Parts distributors are provided with a recommended stocking list. In addition, each parts distributors inventory is
reviewed quarterly. Parts ordered in error or other parts requested for return may be subjected to a restocking fee. Dacor
is committed to supporting its parts and service network and understands the importance of having replacement parts
readily available. Dacor reviews all part return requests individually and will not penalize a distributor who attempts
to maintain complete parts inventory.
PARTS SHIPPING POLICY
Replacement parts are shipped to parts distributors from Dacor, freight prepaid with the exception of air shipments
(please see the authorized Parts Distributor Agreement for specific details). The parts distributor is responsible for
freight costs on all warranty parts. Large parts such as oven cells should be drop shipped directly to the service agency.
EMERGENCY PART ORDERS
An order identified as an emergency and received prior to 12:00 PM (Pacific Standard Time) will ship that day. If an
air shipment is requested the parts distributor will be billed for air freight. An emergency order received after 12:00
PM will be shipped the following day.
DROP SHIPMENT OF PARTS
If requested by a parts distributor, replacement parts can be drop shipped directly to the service agency. This practice
is recommended for large parts, such as oven cells.

Technical Manual - Page 10
POLICIES
POLICIES
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AND
PROCEDURES
PROCEDURES
PARTS RETURN POLICY
Effective March 1, 2000 Dacor implemented a Factory Direct Parts Return Policy. Each part to be returned should
be shipped back in the original container with the shipping label enclosed in the replacement box. A copy of the
NARDA/USA claim form should be enclosed with the part being returned. This new policy will not affect Canada.
WARRANTY REPLACEMENT OF GAS COOKTOP GRATES AND CAPS
In recent years, manufacturers have developed new lighter colored gas cooktop grates and burner caps. Lighter
components show signs of normal wear more quickly than the traditional black components. Warranty will cover
defects in materials or workmanship but not normal wear. Due to the high cost of these parts, Dacor does not authorize
parts Distributors or service agencies to replace these parts under warranty. If you have a customer requesting gas
cooktop grates or caps (under warranty) please refer them to our customer service department.
Credit will not be issued on replacement caps and grates submitted as warranty without prior authorization.
PROCEDURE FOR SUBMITTING PARTS WARRANTY CLAIMS
Please see previous section “processing a labor claim” explaining the distribution of the NARDA claim form. The Parts
Distributor would send the PINK copy of the NARDA to Dacor along with any summary or debit form preferred.
REPLACEMENT PART WARRANTY
Replacement parts are guaranteed for one year from the date of installation. A copy of the original service invoice must
be included with the part when returning to the parts distributor for credit.

DACOR CONTACTS
Main Office
Dacor
1440 Bridge Gate Drive
Diamond Bar, CA 91765
City of Industry - Parts Shipments
Dacor
14425 Clark Street
City of Industry, CA 91745
626-961-6406
Director, Technical Service – Kevin Leedom
National Technical Manager - Thom Tompkins
800-793-0093 X3602
Director, Customer Satisfaction – Cheryl Crowe
Regional Technical Managers
West Central Regional Technical Manager - Darrell Kummerle
800-793-0093 X4606
Home Office 916-789-1094
Eastern Regional Technical Manager – Kurt Moses
800-793-0093 X3604
Home Office 860-482-1340
Fax [phone]
Southern Regional Technical Manager – George Brands
800-793-0093 X3603
Home Office 678-334-3130
Fax [phone]
Midwest Regional Technical Manager – Randy Renfro
800-793-0093 X4603
Home Office 972-412-8976
Fax [phone]
Southwest Regional Technical Manager – Adrian Acosta
800-793-0093 X4675
Home Office and Fax [phone]
Northwest Regional Technical Manager - Ron Hill
800-793-0093 X4602
Telephone Numbers
626-799-1000 Main Office and Customer Service
800-353-2267 Technical Service (technicians only)
Sales and Customer Service Fax [phone]
626-934-9065 Parts Fax
909-612-1702 Technical Service Fax

UL LABEL
UL LABEL
AND
AND
SERIAL TAG
SERIAL TAG
LOCATION
LOCATION
Technical Manual - Page 12
SERIAL TAG LOCATION
CABP3 Serial Tag is attached to the housing cover next to the access plate.
DMO Serial tag is inside the oven against the left wall. To view, open the oven door.
EHD Serial tag is located in the rear panel. To view, remove the filters.
ERD30S06 Serial tag is located inside the unit in the right hand side wall. To view, look through the
intake grill slots.
ERD36 Serial tag is located inside the unit on the right hand side wall. To view, look through the
intake grill slots.
ERD48 Serial tag is located on the wall behind the door latch of the 36” oven. To view, open the 36”
oven door and look through the intake grill slots.
ERG30 Serial tag is located inside the unit on the right hand side wall. To view, look through the
intake grill slots.
ERG36 Serial tag is located inside the unit on the right hand side wall. To view, look through the
intake grill slots.
ESG Serial tag is either located on the side wall or the back wall. The unit must be pulled to
view tag.
ETT/CER Serial tag is located on the bottom of the unit next to the electrical connection.
ILB Serial tag is fixed to the flat surface wrap.
MODULES Serial number label located in the opposite side of the electrical connection (beneath the
handle).
PGR Serial tag is the front case top. To view, open the oven door and look through the intake
grill slots.
REMP3 Serial tag is attached to the main housing wrap behind the protective rack left of the access
plate.
RSD Serial tag is located inside the storage compartment at the left hand side wall.
RSE Serial tag is located inside the storage compartment at the left hand side wall.
RV Serial tag is located in the front plenum above the access panel.
SGM/SGMEM Serial tag is located next to the rating label.
DOUBLE OVENS Serial tag is located inside the intake grill, at the left hand side of the door
latch. To view, open the upper door and look through the slots of the intake grill.
SINGLE OVENS Serial tag is located inside the intake grill, at the left hand side of the door latch.
To view, open the door and look through the slots of the intake grill.
WARMING OVENS Serial tag is located at the bottom of the cabinet at the left hand side. To
view, the drawer must be pulled completely open or removed.

Technical Manual - Page 13
Electrode Detection of a Gas Flame
Theory of Operation
If you look closely at a finger of burner flame you will see that it is
clearly made up of three separate elements:
(see figure 1)
1. Inner fuel rich cone
2. *Ionized blue outer cone with current carrying capabilities
3. Outer air rich mantle.
When gas combined with air; burned energy is released in the form
of heat and light. When the gas / air mixture is controlled, the outer
blue cone will actually carry electrical current similar to a wire.
If we place a metal probe into this “Ionized Plume” and apply a voltage between it and the burner,
current will flow. An important characteristic of a burner/flame/electrode assembly is its ability to
mainly pass current in one direction. It behaves as a one way valve or rectifier.
Flame Rectification systems make use of this directional characteristic when detecting a good
flame to distinguish it from leakage currents that can arise due to moisture contamination, soiled
igniter tip, poorly grounded burner spreader ring / burner head, cracked igniter insulation or poor
house ground.
A voltage of alternating polarity (an AC voltage) is applied to the electrode from the spark module
and the resultant current flow which is greater in one direction than the other, is electronically
detected. This current is very small, about one microamp (one millionth of an amp).
The Dacor re-igniter has a specified minimum flame current that will be sensed as a flame of
0.5 microamps (1.3uA minimum sensitivity for C664 Series Gas Ignition Systems). The minimum
recommended flame current measured under all likely conditions in an installation should be 1.0
microamps for re-igniters (2.0 microamps for C664 Series). When a burner flame is present the
Ionized outer cone will be producing a small DC current. This current is known as (Flame Current).
The flame current has to be at a certain level to allow voltage from the spark module to flow
efficiently.
The accurate placing of the electrode in the flame is important.
This igniter tip needs to be perfectly located in the ionized outer
blue cone to effectively send and then detect current flow.
To break it down further, the spark module
acts as a simple capacitor. It saves voltage like a sponge
until it can hold no more. It will save and release this voltage
approximately 3 times per second. When the voltage is released it follows the spark wire until
reaches the spark electrode tip. The built up voltage wants to leave the tip and move to the
point of least resistance. In a healthy situation this will be the burner spreader ring. From the
burner spreader ring the voltage flow will pass through the burner head, burner tube, chassis and to
ground. An interruption of this current path will cause the spark system to misbehave.
3
Figure 1
1
2

Technical Manual - Page 14
The flame also plays a very important role in this process. Because the flame is conductive, it
allows the voltage to pass through its body like a bridge to the burner spreader ring. This {bridge}
allows the built up spark voltage to bleed off of the igniter tip and move to ground more easily. The
resultant ionized flame bridge has now become the path of least resistance for the spark to take
across the gap between the spark electrode and the burner body.
By bleeding off the buildup of voltage we stop the spark from occurring. The spark is, in effect,
still there, you just canʼt see it.
* Ionized / To separate into Ions or to become electrically charged.
In order to successfully detect a flame we first need to;
1. Place the electrode in the correct position under all flame conditions.
2. Ensure the flame is stable and does not “lift off” the burner at the ports adjacent to the
electrode and put the flame beyond the electrode. It is very important to have a stable flame
especially around the igniter tip.
3. Ensure there is a secure ground path to earth from the burner spreader ring / burner head.
4. Confirm the appliance is properly connected to earth ground.
Current Path
The current path for detection is through the spark electrode, outer plume of flame, burner spreader
ring, burner head, burner base, chassis and earth ground. If this path is broken, the current cannot
flow and sparking will occur. A proper flame will keep this from happening. In other words, the
current will always flow through the path of least resistance and it might not be on top of the
cooktop, it might be below the top frame and out of sight. In this case, suspect a defective spark
wire or a pinched spark wire.
Do you have a ground prior to the igniter tip?
If there is a current path (leak / ground) prior to spark electrode,there will likely not be a spark
pulse between the electrode and the burner spreader ring. This phenomenon is what leads most
servicers to believe they have a defective spark module.
The spark module can tolerate a relatively large leakage before going into fault condition and
generating a spark. The tolerance to leakage decreases with an increasing amount of flame current
therefore it is desirable to obtain a high flame current at the appliance design stage to provide
some allowance for increasing leakage with age and use. The better the flame current / ground,
the less likely there is to be reignition.
Possible Causes Of Continuous Sparking:
Defective spark wires.
Continuous high heat can cause spark wires to degrade. Use volt/ohm meter to determine continu-
ity of spark wires. Look for obvious cuts/ abrasions or pinch points. A defective wire can allow
spark voltage to transfer through insulation to ground prior to reaching spark electrode. Under
normal circumstances all igniters fire together and if the burner in question has found an easier
ground path the spark will go there. It will not, however, in most cases have found a CONTINUOUS
ground path such as what the flame would provide under normal circumstances. This will cause
the spark module to re-ignite.

Technical Manual - Page 15
Cracked Ceramic Spark Electrode
Itʼs important to determine whether the spark electrode is faulty. Physical impacts and high heat
can cause the ceramic post to fracture or crack. If this occurs the spark can shoot through the
ceramic insulation and will normally go to ground on the burner head rather than through the flame
/burner spreader ring.
Faulty Burner Grounding
From the spark electrode / burner spreader ring to earth ground it is important that you have a
strong connection. This can be interrupted in many different ways.
Soiled spark electrode
Soiled burner spreader ring
Soiled burner head
 Corrosion between the burner head and burner tube.
Normally this will appear as a brownish stain and can be easily cleaned with a small wire
brush.
Any of these conditions can interrupt current flow. We recommend frequent cleaning with a stiff
plastic or soft wire bristle brush using pure alcohol or a window cleaning solution that contains
alcohol. It is commonly thought that simple igniter cleaning
is enough, it is not. You have to clean all three conductive
components to ensure good continuity. A small amount of
grease or oil can act as an insulator and prevent the spark from
flowing properly.
The burner head and burner tube connection has to be tight.
The fastening ring that holds them together has to be seated
properly in order for the two components to properly pass
electrical current.
Poor house ground
If you have thoroughly diagnosed the spark system and continue to have erratic sparking do not
dismiss the home ground as the culprit. Many older homes that are being remodeled do not have
adequate ground systems in place to handle todayʼs demands. A quick diagnostic tool is a 20-foot
piece of 16-gauge wire with alligator clips on each end. This can be used a temporary {jumper}
to a known ground source. If the problem is eliminated when you connect the {jumper} you have
to suspect the home ground as the culprit. When tested, the Neutral and ground should share
less than 20 volts.
Erratic Sparking
It is common to find one or a series of burners that will only spark occasionally. As with the
previously described scenarios check all possible ground faults. This is the number one cause of
erratic sparking, not spark modules as is more commonly thought. If you have made certain that
you have a strong flame current / flame placement / solid ground; replace spark module.
Burner Fastening Ring

Technical Manual - Page 16
Excessive Failures:
Diagnosis on a spark system can be confusing. For some, diagnosing spark failure is difficult while
for others it is pure luck to get it right. Often you can eliminate a problem by disassembling the
cooktop and putting it back together. In the process most technicians will have installed a new
spark module and assumed thatʼs what repaired the unit. What they have likely done is improved
a ground path in the reassemble process. Most gravitate to what they have heard {just change the
spark module} Dacor monitors the return of spark modules and NARDA claim forms. The statistical
data clearly shows that a vast majority of modules being replaced are not faulty since over 83% of
the spark modules returned to Dacor for credit are tested as “good” product.
The following “fault descriptions” have been taken directly from the NARDA claims submitted:
Burner no light
Rear burner making a “popping noise”
When one burner is turned on others click
Sparking continues long after flame
Constant sparking
Burner intermittent sparking
Clicks but will not light
Takes too long to light
None of these reasons for service are accurate indicators of a faulty igniter module.
As with any Flame Rectification Reignition system, the Dacor flame reignition system does have
some critical issues that may prevent its correct function.
These are:
Partially open valve
90% of the trials will not light the flame but will cause spark.
 Downdraft Ventilation
Might affect the re-ignition of the small H-Burner in the simmer setting
Clogged Valve
Not an adequate volume of gas. It will take longer to light the burner.
Poor Grounding
Might damage the module.
Reversed Polarity
Will cause constant sparking when unit is turned on.
Faulty spark leads
A broken wire may allow for a spark but not for flame sensing.
 Leakage path to ground
Condensation or moisture on the electrode or dirt build up will cause poor grounding.
One of more burners will not stop sparking unless a certain sequence of burners are turned on
at the same time.
This indicates mismatched spark wires. Each individual burner wire has to go to a specific burner.
The spark switch located on each gas valve is connected to the spark module input side. This
connection determines which burner the module {listens} to. If the wiring sequence is incorrect the
module does not know what to look for.
Consistent But Weak Spark
After giving close inspection to the spark wires, spark electrode, burner head /burner base and

Technical Manual - Page 17
TEST POINT 16
ERC CONNECTOR
OUTPUT VOLTAGE CHECK POINTS
ON ERC/CLOCK CONTROL
All Ranges And Wall Ovens
When programming the oven into a cooking cycle, you first select the desired mode on the
touch membrane. Pressing this key sends a message to the ERC/Clock control, which in
turn triggers 24 Volts DC to be sent to the main relay board through the connective harness.
The desired relay (for example, Pure Convection) closes and distributes power to the desired
components. In order to correctly diagnose this sequence you need a volt meter set on DC
voltage. Drop the Bezel/Control panel down thus exposing the ERC/Clock and related wiring.
Dropping the control panel down will expose the back side of the ERC/Clock control and
main wiring harness. The connective harness will have 16 pins. Using a voltmeter take the
test leads and insert into the backside of the main wiring harness
To take a voltage reading using the ERC connection chart below:
1. Set the voltage meter to DC voltage
2. Insert the test lead into the backside of the main harness
(plugged into the backside of the ERC control.)
For example: if bake isn’t working:
a) Insert the test leads into connections (2-5)
b) Program the unit into the bake cycle
The meter should read 22-24 Volts AC
sniPneewteByaleRdaeRdluohS
3-1LBDSTLOV42
5-2EKABSTLOV42
6-2LIORBSTLOV42
7-2 NOITCEVNOC TNEMELE STLOV42
9-2 NOITCEVNOC N
AF STLOV42
11-1 ROTOMROOD )ROTOMHCTAL( STLOV42
31-1NAFGNILOOCSTLOV42
TEST POINT 1

Technical Manual - Page 18
1. Check incoming voltage. Appliances must have 240 volts with a neutral.
2. Check voltage at main relay board at L1 and N just in front of the low voltage
transformer. Should read 120 volts. Refer to picture for voltage test points.
3. If you do not have the voltage at L1 and N check wires and connections at
terminal block.
4. If you have 120 volts at L1 and N then check voltage at main ERC
harness connection coming off ERC clock control. Refer to picture for
test points 14 and 15. Should have 22-24 volts AC input to ERC/clock control.
5. If you do not have 22-24 volts AC, suspect the main relay board or main
harness.
L1 test point
NO CLOCK DISPLAY
All Ranges And Wall Ovens
1
**Prior to going out on this call - make sure that the customer has re-set the circuit breaker.