Vulcan-Hart ERO15 User manual

A product of VULCAN-HART LOUISVILLE, KY 40201-0696
F35613 (September 2003)
- NOTICE -
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly
qualified. If you have attended a Vulcan Service School for this
product, you may be qualified to perform all the procedures
described in this manual.
This manual is not intended to be all encompassing. If you have
not attended a Vulcan Service School for this product, you should
read, in its entirety, the repair procedure you wish to perform to
determine if you have the necessary tools, instruments and skills
required to perform the procedure. Procedures for which you do
not have the necessary tools, instruments and skills should be
performed by a trained Vulcan Service Technician.
Reproduction or other use of this Manual, without the express
written consent of Vulcan, is prohibited.
ERC50 WITH DUAL BASKET
LIFTS SHOWN
SERVICE MANUAL
ER SERIES ELECTRIC FRYERS
WITH TRIDELTA CONTROLS
MODEL ML
ERD50 135541
ERD85 135543
ERC50 135545
ERC85 135547
ERD50F 135561
ERD85F 135563
ERC50F 135565
ERC85F 135567
ERO15 135548
ERO21 135549
For additional information on Vulcan-Hart Company or to locate an authorized parts
and service provider in your area, visit our website at www.vulcanhart.com.

ER SERIES ELECTRIC FRYERS
F35613 (September 2003) Page 2 of 48
TABLE OF CONTENTS
GENERAL ................................................................................ 4
Introduction ............................................................................ 4
Single Floor Model Fryers ................................................................. 4
Model Designations ................................................................. 4
Models, Features and Options ......................................................... 4
Kleenscreen Filtering System .............................................................. 5
Model Designations ................................................................. 5
Models, Features and Options ......................................................... 5
Specifications .......................................................................... 6
Tools................................................................................. 6
Control Panels ......................................................................... 7
REMOVALANDREPLACEMENTOFPARTS .................................................... 8
Covers and Panels ...................................................................... 8
CookingControls ....................................................................... 9
Filter Valve and Discard Valve Switches .................................................... 10
TemperatureProbe .................................................................... 10
HighLimitThermostat .................................................................. 11
Power Supply Box Components ........................................................... 12
HeatingElements ...................................................................... 12
LiftAssistSprings ...................................................................... 13
TiltSwitch ............................................................................ 14
BasketLiftTube ....................................................................... 15
BasketLiftMotor....................................................................... 15
BasketLiftCamSwitch.................................................................. 16
Pump and Motor ....................................................................... 16
SERVICEPROCEDURESANDADJUSTMENTS................................................. 17
Temperature Probe Test ................................................................ 17
CookingControlCalibration .............................................................. 17
LiftAssistSpring Adjustment............................................................. 18
BasketLiftArmAdjustment .............................................................. 18
HeatingElementTest ................................................................... 19
SolidStateControl ..................................................................... 20
Operation ........................................................................ 20
Error Messages ................................................................... 20
Programming ..................................................................... 20
ComputerControl ...................................................................... 21
Operation ........................................................................ 21
ServiceProgramming ............................................................... 21
Error messages ................................................................... 21
EnterServiceMode ................................................................ 21
Display, Led and Keypad Test ........................................................ 22
ELECTRICALOPERATION .................................................................. 23
Component Function ................................................................... 23
Component Location ................................................................... 24
Power Supply Box ..................................................................... 25
Circuit Breaker/Supply Box ............................................................... 26

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F35613 (September 2003)
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Sequence of Operation .................................................................. 27
CookingControl,SolidStateorComputer ............................................... 27
FilteringSystem ................................................................... 28
SchematicDiagrams ................................................................... 30
Single Floor Model Fryers & Filtering System Fryer Batteries, Non Pump Side Fryer Section(s) ..... 30
FilteringSystemFryerBatteries,PumpSideFryerSection .................................. 31
HeaterCircuit ..................................................................... 32
BasketLiftCircuit .................................................................. 33
WiringDiagrams....................................................................... 34
Single Floor Model Fryers & Filtering System Fryer Batteries, Non Pump Side Fryer Section(s) ..... 34
FilteringSystemFryerBatteries,PumpSideFryerSection .................................. 36
BasketLift ........................................................................ 38
Filtering System Fryers, Filter/Discard Switch Connections .................................. 39
Frymate(DumpStation) ............................................................. 40
TROUBLESHOOTING ...................................................................... 41
All Models ............................................................................ 41
SolidStateControl ..................................................................... 42
ComputerControl ...................................................................... 42
SolidStateorComputerControlHarnessPin-Outs ............................................ 43
ControlInterfaceBoardPin-Outs .......................................................... 43
Frymate (Dump Station) with Optional Heater ................................................ 43
Kleenscreen Filtering System ............................................................. 44
CONDENSED SPARE PARTS LIST ........................................................... 48
© VULCAN 2003

ER SERIES ELECTRIC FRYERS - GENERAL
F35613 (September 2003) Page 4 of 48
GENERAL
INTRODUCTION
This Service Manual covers specific service information related to the models listed on the front cover. Current
production model fryers are built using a solid state control and computer control from Tridelta Industries (TDI).
SINGLE FLOOR MODEL FRYERS
Fryers with the Filter-Ready option installed, use the Mobile Filter. For service information related to the Mobile
filter, refer to F24599 MOBILE FILTERS.
An ERO Frymate (dump station) can be configured in a battery with fryers 15 1/2 inches or 21 inches in width.
Model Designations
Models, Features and Options
MODEL
FEATURES OPTIONS
FRYER
WIDTH
(INCHES)
SHORTENING
CAPACITY
(POUNDS)
FRY
TANK
COOKING
CONTROL
COOK TIMER
(MM:SS)
AUTOMATIC BASKET
LIFTS
ERD50 15 1/2 45-50 Full Solid State 0-99:59 Single or Dual
ERD85 21 85-90 Full Solid State 0-99:59 Single or Dual
ERC50 15 1/2 45-50 Full Computer 0-99:59 Single or Dual
ERC85 21 85-90 Full Computer 0-99:59 Single or Dual
ERO15
(Frymate) 15 1/2
ERO21
(Frymate) 21

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F35613 (September 2003)
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KLEENSCREEN FILTERING
SYSTEM
The Kleenscreen filtering system has been
integrated into the ER Series fryer battery. The filter
is housed in a pull-out drawer assembly at the base
of the fryer. The filtering components in the drawer
include a stainless steel filter tank, crumb-catch
basket and a dual element mesh filter screen. With
the filter drawer closed, a self-seating oil return line
provides the path to return the filtered shortening to
the fry tank.
This system is designed to provide a thorough and
easy method for filtering shortening.
Some of the benefits include:
• Self-contained system eliminating the use of
external filter equipment.
• Paperless filtering system.
• Easy to clean and low maintenance.
The fryer battery still utilizes many of the same
components as the Vulcan ER series fryers.
Kleenscreen fryer batteries are available in a
minimum of two and a maximum of four fryer
sections. The fryer size of each section is identical.
An ERO Frymate (dump station) can be included as
one of the sections.
Model Designations
Models, Features and Options
MODEL
FEATURES OPTIONS
FRYER
WIDTH
(INCHES)
FRYING OIL
CAPACITY
PER FRYER
(POUNDS)
FILTER PAN
CAPACITY
(POUNDS)
FRY
TANK
COOKING
CONTROL
COOK
TIMER
(MM:SS)
AUTOMATIC
BASKET LIFTS
2ERD50F 142 45-50 130 Full Solid State 0-99:59 Single or Dual
2ERD85F 242 85-90 130 Full Solid State 0-99:59 Single or Dual
2ERC50F 131 45-50 130 Full Computer 0-99:59 Single or Dual
2ERC85F 242 85-90 130 Full Computer 0-99:59 Single or Dual
ERO15
(Frymate) 15 1/2
ERO21
(Frymate) 21
NOTES: 1. For each additional fryer section, add 15 1/2 inches to the width. 2. For each additional fryer section,
add 21 inches to the width.

ER SERIES ELECTRIC FRYERS - GENERAL
F35613 (September 2003) Page 6 of 48
SPECIFICATIONS
MODEL
KW
PER FRYER
SECTION 2
AMPS - EACH FRYER
SECTION
(3 PHASE/ 60HZ) 1
PER LINE
208V 240V 480V
ERD50,
ERD50F
14 39 34 17
17 47 41 20
ERD85,
ERD85F 24 67 58 29
ERC50,
ERC50F
14 39 34 17
17 47 41 20
ERC85,
ERC85F 24 67 58 29
NOTES:1. Amperage values in the table are
nominal. Tolerance is +5/-10%.
2. 14kw is standard on all fryers except
85 lb. models which are 24kw.
Single Floor Model Fryers
• Fryers with the Filter-Ready option installed,
use a 120VAC power cord for the Mobile Filter.
• 208VAC, 240VAC or 480VAC (3 phase, 60HZ)
to power the heating elements.
Kleenscreen Filtering System
Separate electrical connections are required for
each section of the battery.
• 208VAC, 240VAC or 480VAC (3 phase, 60HZ)
to power the heating elements.
• On 208VAC and 240VAC models, a
transformer provides power for the fryer
controls, basket lift(s) if installed, and
Kleenscreen filtering controls.
• On 480VAC models, a 120VAC connection is
required for each fryer section.
• All models require a separate 120VAC
connection for the pump motor (5.0 amp draw).
TOOLS
Standard
• Standard set of hand tools.
• VOM with AC current tester.
NOTE: Any quality VOM with a sensitivity of
20,000 ohms per volt can be used.
• Temperature tester (thermocouple type).
Special
• Field service grounding kit P/N TL- 84919.
• Loctite 242 P/N 520228 or equivalent.
• Burndy pin extraction tool RX2025 GE1;
Newark Electronics Catalog Number 16F6666.
Used for removing pin terminals on Burndy
connectors.

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F35613 (September 2003)
Page 7 of 48
SOLID STATE CONTROL, D MODEL
COMPUTER CONTROL, C MODEL
CONTROL PANELS
Solid State
!Five product/programming keys: Left basket (up arrow); Right basket (down arrow); Temperature; Program
and Boil.
!Four digit display window that indicates fryer status, time left to cook, and actual or set point temperature.
Decimal point of first character indicates heat on when lit.
!Two LED lamps that illuminate when a basket timer is being programmed or blink to when a timer is
activated (left or right basket).
!Boil key for automatic or manual mode BOIL out cleaning of fry tank.
Computer
!Eighteen product/programming keys allow individual product cooking times for up to ten different products:
Product/Programming keys 1 thru 0; Oil Temp to view actual temperature or set the desired product cooking
temperature; L & R (Left & Right) basket selection; Toggle; Boil; and two Timer keys.
Left & Right Arrows - used to initiate programming of time and checking stored values (left 1-5 & right 6-0).
!Left & Right displays that indicate actual or set point temperature, remaining times, operating mode, and
completion of preheat period.
!Two LED lamps on the OIL TEMP key that indicate heat on and ten individual LED lamps above each of the
ten product/programming keys: LED’s blink when a product key is activated, solid when using a key for
programming.
!Boil key for automatic or manual mode BOIL out cleaning of fry tank.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003) Page 8 of 48
REMOVAL AND REPLACEMENT OF PARTS
COVERS AND PANELS
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
Control Panel
1. Remove screws at top of control panel and
lower panel.
2. Disconnect wiring harness then remove control
panel.
3. Reverse procedure to install.
Element Head Cover
1. Remove basket hanger or lift arm(s) if basket
lift option is installed.
2. Remove screws from rear of element head
assembly.
3. Raise heating elements and place 2x4 lumber
under them for support.
4. Remove screws from the bottom of element
head assembly.
5. Grasp heating elements and remove 2x4
lumber. Lift the elements and pull toward rear
of fryer. Head cover will separate from element
head base.
A. Lower the heating elements and place
them in fry tank.
NOTE: Heating elements remain attached to
element head cover.
6. Reverse procedure to install.
Basket Lift Covers
NOTE: Applies to fryers with basket lift option only.
1. Access rear of fryer.
2. Remove basket lift arms from lift tubes.
3. Remove screws securing upper cover to fryer.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003)
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A. Lift the upper cover over support rods to
remove.
4. Remove screws securing lower cover to motor
mounting base.
5. Reverse procedure to install.
Rear Door (Access Cover)
1. Access rear of fryer.
2. Remove basket lift covers if basket lift option is
installed.
3. Remove access cover at the top.
NOTE: The cover is flanged at the top & bottom and
is held in place by an interference fit. The bottom
flange is formed to secure the cover to fryer.
4. Reverse procedure to install.
COOKING CONTROLS
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
CAUTION: Certain components in this system
are subject to damage by electrostatic discharge
during field repairs. A field service ground kit is
available to prevent damage. The field service
grounding kit must be used anytime the control
board is handled.
1. Remove the control panel as outlined under
CONTROL PANEL.
2. Remove cooking control by removing mounting
nuts securing the control and mounting panel
to front control panel.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003) Page 10 of 48
3. Lift the cooking control with mounting panel
attached, off the front control panel.
4. Reverse procedure to install.
5. Re-connect power and turn power switch on.
6. Program the cooking control for the control
type as outlined under SOLID STATE
CONTROL or COMPUTER CONTROL in
SERVICE PROCEDURES AND
ADJUSTMENTS.
NOTE: If installing a replacement cooking control,
program the control with the customers settings and
products.
7. Check for proper operation.
FILTER VALVE AND DISCARD
VALVE SWITCHES
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
1. Open the door to the fryer section being
serviced.
2. Disconnect lead wire connector (2 pin) to the
switch.
3. Remove switch mounting screws.
4. Remove switch cover and disconnect lead
wires from switch.
5. Reverse procedure to install and check for
proper operation.
NOTE: Switches are not adjustable.
TEMPERATURE PROBE
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
CAUTION: Do not sharply bend and kink the
temperature probe or damage may occur.
1. Raise heating elements.
2. Remove clamps from temperature probe.
3. Remove element head cover as outlined under
COVERS AND PANELS.
4. Disconnect temperature probe lead wires.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003)
Page 11 of 48
5. Remove temperature probe from the element
head.
6. Reverse procedure to install.
NOTE: When installing, ensure grommet remains in
place when inserting temperature probe thru the
grommet in the element head.
7. Check cooking control calibration as outlined in
COOKING CONTROL CALIBRATION under
SERVICE PROCEDURES AND
ADJUSTMENTS.
HIGH LIMIT THERMOSTAT
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
CAUTION: Do not sharply bend and kink the
capillary tube or damage may occur.
1. Raise heating elements.
2. Loosen clamps securing capillary tube and
bulb to element.
3. Remove element head cover as outlined under
COVERS AND PANELS.
4. Remove high limit from mounting bracket.
5. Disconnect high limit lead wires.
6. Remove grommet from the element head
assembly.
7. Remove the bulb, capillary tube and high limit
from the element head assembly.
NOTE: When installing, slide grommet onto
capillary tube then insert grommet into the capillary
tube thru hole in the element head.
8. Reverse procedure to install.

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F35613 (September 2003) Page 12 of 48
POWER SUPPLY BOX
COMPONENTS
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
CAUTION: Certain components in this system
are subject to damage by electrostatic discharge
during field repairs. A field service grounding kit
is available to prevent damage. The field service
grounding kit must be used anytime a control
board is handled.
1. Remove the control panel as outlined under
CONTROL PANEL.
2. Disconnect lead wires then remove the
component being replaced.
A. If removing, contactor(s), transformer, or
filter relay, continue with procedure.
3. Remove screw securing control plate to box.
A. Grasp control plate on the right side at the
top, and pull out until left side holding tab
clears slot.
4. Disconnect lead wires then remove the
component being replaced.
5. Reverse procedure to install the replacement
component and check for proper operation.
HEATING ELEMENTS
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
CAUTION: Do not sharply bend and kink the
capillary tube or the temperature probe, or
damage may occur.
1. Remove basket hanger or lift arm(s) if basket
lift option is installed.
2. Raise heating elements.
A. If replacing left heating element, loosen
high limit bulb and capillary tube clamps.
Remove high limit bulb and capillary tube
from clamps then position away from
element.
B. If replacing right heating element, remove
temperature probe clamps and position
temperature probe away from element.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003)
Page 13 of 48
NOTE: When installing high limit, route the capillary
tube and center the bulb between the clamps before
tightening.
3. Remove element assembly clamps. Front
clamps stiffen and secure both elements
together. Rear clamps stiffen each individual
element.
4. Remove element head cover as outlined under
COVERS AND PANELS.
5. Disconnect heating element lead wires.
NOTE: Each heating element assembly contains
three individual elements (six lead wire connections
total).
6. Remove screws from heating element
mounting bracket and remove heating element.
7. Reverse procedure to install.
LIFT ASSIST SPRINGS
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
1. Remove rear door (access cover) as outlined
under COVERS AND PANELS.
2. Raise heating elements and place 2x4 lumber
under them for support. Heating elements are
to remain upright.
3. Loosen all eye bolt mounting nuts to release
tension on springs.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003) Page 14 of 48
REAR VIEW SHOWN, ELEMENTS LOWERED
FRONT VIEW SHOWN, ELEMENTS RAISED
4. Remove lift assist springs from the eye bolt
hooks.
5. Remove lift assist springs from the hangers.
6. To install springs:
A. Attach spring hook to hanger thru rear
door opening.
B. Attach spring hook to eye bolt and tighten
eye bolt mounting nut.
C. Remove 2x4 lumber and lower heating
elements.
7. Adjust spring tension as outlined under LIFT
ASSIST SPRING ADJUSTMENT in SERVICE
PROCEDURES AND ADJUSTMENTS.
TILT SWITCH
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
1. Remove element head cover as outlined under
COVERS AND PANELS.
2. Lower heating elements.
3. Disconnect lead wires from tilt switch.
4. Remove tilt switch from element head.
5. Reverse procedure to install and check for
proper operation.
NOTE: The tilt switch and magnet are mounted in
fixed locations and are not adjustable.

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F35613 (September 2003)
Page 15 of 48
BASKET LIFT TUBE
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
1. Remove basket lift covers as outlined under
COVERS AND PANELS.
2. Remove nut securing lift bar to the lift tube.
3. Remove screws securing lift tube bracket to
fryer then remove bracket and lift tube.
4. Reverse procedure to install.
BASKET LIFT MOTOR
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
1. Remove basket lift tube as outlined under
BASKET LIFT TUBE.
2. Disconnect lead wires from cam switch and
basket lift motor.
3. Loosen set screws securing crank arm
assembly to the basket lift motor shaft.
4. Remove screws securing motor mounting plate
to fryer then remove motor from plate.

ER SERIES ELECTRIC FRYERS - REMOVAL AND REPLACEMENT OF PARTS
F35613 (September 2003) Page 16 of 48
5. Reverse procedure to install and check for
proper operation.
NOTE: When installing, keep all lead wires clear
from moving parts.
BASKET LIFT CAM SWITCH
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
1. Remove basket lift covers as outlined under
COVERS AND PANELS.
2. Disconnect lead wires from cam switch.
3. Remove screws securing cam switch to motor
mounting plate.
4. Reverse procedure to install and check for
proper operation.
NOTE: When installing, place the cam switch block
behind the cam switch for proper spacing.
PUMP AND MOTOR
WARNING: DISCONNECT THE
ELECTRICAL POWER TO THE
MACHINE AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES. THERE
MAY BE MULTIPLE CIRCUITS. BE
SURE ALL CIRCUITS ARE
DISCONNECTED.
1. Open both fryer cabinet doors above the filter
tank drawer.
2. Pull the filter drawer out and remove splash
guard/cover from tank.
A. If filter tank is not empty, remove
shortening from filter tank.
3. Remove the filter tank assembly and push the
tank support arms back underneath the fryer.
NOTE: The remaining steps are written for front
removal of the pump assembly. If access to the
back of the fryer is available, it may be easier to
remove the pump from the rear.
4. Disconnect the electrical connection to the
motor.
5. Separate the swivel hose connections at the
pump.
NOTE: When viewed from pump end, the right side
is the intake port and the left side is the discharge
port.
6. Remove motor mounting bolts.
7. Remove the motor and pump (pipe fittings
attached) from the fryer.
A. If replacing the pump and motor, remove
the existing pipe assemblies and reuse.
8. Reverse procedure to install.
NOTE: Ensure the rubber vibration pad or the
grommets are installed under the motor mounting
plate.

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F35613 (September 2003)
Page 17 of 48
SERVICE PROCEDURES AND ADJUSTMENTS
WARNING: CERTAIN PROCEDURES IN THIS SECTION REQUIRE ELECTRICAL TEST OR
MEASUREMENTS WHILE POWER IS APPLIED TO THE MACHINE. EXERCISE EXTREME CAUTION AT ALL
TIMES. IF TEST POINTS ARE NOT EASILY ACCESSIBLE, DISCONNECT POWER AND FOLLOW LOCKOUT
/ TAGOUT PROCEDURES, ATTACH TEST EQUIPMENT AND REAPPLY POWER TO TEST.
TEMPERATURE PROBE TEST
The temperature probe is used for both the solid
state and computer cooking controls. The probe is
an RTD (resistance temperature detector) of the
thermistor type. As temperature increases the
resistance value decreases.
Probe Fault
If a temperature probe fault or high temperature
condition occurs, a fault message will be displayed
and the electronic alarm will sound continuously.
The heat demand and basket lift outputs are
de-activated. If a cooking cycle is in process (timer
active), it will be cancelled and the key pad
disabled.
This will continue until the fault clears, power is
cycled or problem resolved.
Cooking
Control Display Message
SOLID STATE An open will display Prob and a
short or high temperature
condition will display HI.
COMPUTER An open will display PROBE
OPEN and a short or high
temperature condition will
display PROBE SHORT.
To Check:
1. Turn power switch off.
2. Remove CONTROL PANEL as outlined under
COVERS AND PANELS.
3. Test the probe using a VOM to measure
resistance. Connect the meter probe leads to
pins 3 & 4 on the female connector for the
wiring harness.
A. If the measured resistance values are
within the allowable range, the probe is
functioning properly. Reverse procedure
to install.
B. If the measured resistance values are
outside the allowable range, install a
replacement probe as outlined under
TEMPERATURE PROBE in REMOVAL
AND REPLACEMENT OF PARTS.
C. Check cooking control calibration.
Temperature (ºF) Resistance (S)
77 90,000 - 110,000
350 604 - 836
415 1302 - 369
460 2191 - 233
NOTE: 1. High temperature alarm level for the
cooking controls.
2. Shorted probe equivalent temperature.
COOKING CONTROL
CALIBRATION
NOTE: Verify condition of temperature probe as
outlined under TEMPERATURE PROBE TEST
before proceeding.
1. Check the level of shortening in fry tank. The
level must be between the MIN & MAX fill lines
before proceeding.
2. Allow the shortening to cool below 300°F.
3. Place a thermocouple in the geometric center
of the fry tank one inch below the shortening
surface.
4. Set the cooking control to 350°F and turn the
fryer on.
5. Monitor the heat indicator lamp. When cooking
control is calling for heat, lamp will be on. If
cooking control is satisfied, lamp will be off.
Solid State Control - Decimal point of first
character indicates heat on when lit.
Computer Control - Two LED lamps on the oil
temp key that indicate heat on.
NOTE: Agitate the shortening, to eliminate any cold
zones.
A. Allow cooking control to cycle three times
to stabilize shortening temperature.
B. Record meter reading from thermocouple
when the cooking control cycles off and on
for at least two complete heating cycles.
6. Calculate the average temperature by adding
the temperature reading when the heat lamp
goes out to the temperature reading when the
heat lamp comes on & divide this answer by 2.

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F35613 (September 2003) Page 18 of 48
[ Temp. (Lamp off) + Temp. (lamp on) ] ÷ 2 = Average Temp.
Example: 360/+ 340/÷ 2 = 350/F.
The average temperature should be
350°F (± 5°F).
A. If the average temperature reading is
within tolerance, cooking control is
properly calibrated.
B. If the average temperature reading is out
of tolerance, perform the following:
1) Solid State Control - Adjust the offset
temperature accordingly as outlined
in SOLID STATE CONTROL under
SERVICE PROCEDURES and
ADJUSTMENTS.
2) Computer Control - Adjust the offset
temperature accordingly as outlined
in COMPUTER CONTROL under
SERVICE PROCEDURES and
ADJUSTMENTS.
7. Repeat the average temperature calculation for
up to three attempts. Allow the cooking control
to cycle at least two times between
adjustments before performing the calculation.
8. If calibration is unsuccessful, the cooking
control may be malfunctioning and cannot be
adjusted properly. Install a replacement
cooking control and check calibration.
LIFT ASSIST SPRING
ADJUSTMENT
1. Turn power switch off.
2. Remove lift arm(s) if basket lift option is
installed.
3. Check spring tension:
A. Raise heating elements to the full up
position. Elements should remain in place.
B. Lower heating elements to the full down
position. Elements should remain in place.
C. If the elements remain in place as
described, then no adjustment is
necessary. If the elements do not remain
in place, continue with procedure for
adjustment.
4. Remove basket lift tube(s) if basket lift option is
installed as outlined under BASKET LIFT
TUBE in REMOVAL AND REPLACEMENT OF
PARTS.
5. Remove rear door (access cover).
NOTE: Elements should be in the down position.
6. To adjust spring tension:
A. Loosen stop nut on all eye bolts.
B. Adjust eye bolt mounting nuts as
necessary, but equally on all springs to
achieve the best spring tension to hold
elements in place.
C. Perform spring tension check.
D. Repeat spring tension adjustment if
necessary.
E. Tighten stop nut on all eye bolts.
7. Replace rear door (access cover) and basket
lift components (if installed).
BASKET LIFT ARM
ADJUSTMENT
1. With shortening at room temperature, verify the
level is between MIN & MAX lines in fry tank.
Add shortening as needed.
NOTE: Shortening will expand when heated. Do not
fill the fry tank past the MAX line.
2. Turn power switch on and set temperature to
350/F. Allow the shortening to reach set
temperature.
3. Check basket lift operation.

ER SERIES ELECTRIC FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS
F35613 (September 2003)
Page 19 of 48
A. If necessary, adjust as outlined below.
4. When basket is in the up position, the bottom
of the basket should be out of the shortening.
When basket is in the down position, the
bottom of the basket should clear the crumb
screen and the product should be submerged.
A. To adjust, remove basket arm from lift
shaft, loosen stop nut and turn height
adjustment bolt to raise or lower basket
arm as required. Both baskets should be
same height.
B. Re-tighten stop nut when complete.
NOTE: If adjustment is to low, when the basket is
lowered, it will disengage from basket arm.
HEATING ELEMENT TEST
VOLTAGE TOTAL
KW
AMPS PER
ELEMENT
OHMS PER
ELEMENT
208
14 39 18.3
17 47 15.2
24 67 10.7
240
14 34 24.2
17 41 20.4
24 58 14.2
480
14 17 97.6
17 20 83.0
24 29 57.4
NOTES: 1. Values in the table are nominal.
Tolerance is +5/-10%.
2. Voltage values are @ 60HZ.
3. Resistance values (ohms) are @ room
temperature.
1. Remove element head cover as outlined under
COVERS AND PANELS in REMOVAL AND
REPLACEMENT OF PARTS.
CAUTION: Heating elements must remain
submerged in shortening while performing this
test or damage may occur.
2. Access heating element lead wire connections
at wire nuts.
3. Re-connect power, turn power switch on and
set cooking control to call for heat.
4. Measure voltage at heating element
connections and verify against data plate
voltage.
A. If voltage is incorrect, see ALL MODELS
under TROUBLESHOOTING.
B. If voltage is correct, check current draw
(amps) through the heating element lead
wires. See table for proper values.
NOTE: This method is preferred over a
resistance check when a clamp on type amp
meter is available.
1) If current draw is correct then heating
element is functioning properly.
2) If current draw is not correct, turn
power switch off and disconnect
power to the machine.
a. Install a replacement heating
element.
b. Proceed to last step.
C. If unable to check current draw, a
resistance check may indicate a
malfunctioning element. See table for
proper values.
1) Turn power switch off and disconnect
power to the machine.
2) Remove wire nuts from heating
element lead wire connections and
separate lead wires.
3) Check resistance (ohms).
5. Check for proper operation.

ER SERIES ELECTRIC FRYERS - SERVICE PROCEDURES AND ADJUSTMENTS
F35613 (September 2003) Page 20 of 48
SOLID STATE CONTROL
Operation
Refer to the Installation & Operations manual for
specific operating instructions.
Error messages
For information on solid state control error
messages, refer to SOLID STATE CONTROL under
TROUBLESHOOTING.
Programming
The solid state control’s programming mode is used
to set the controls operational parameters.
NOTE: If a product key is active (timing),
programming mode can not be entered.
1. Press V key to enter programming mode.
If the PARAMETER LOCK feature is disabled,
PROGRAM MODE entry is immediate. If the
PARAMETER LOCK feature is enabled LoC
will be displayed.
Use the following key sequence (password) to
enter PROGRAM MODE: LEFT BASKET/UP;
LEFT BASKET/UP; RIGHT BASKET/DOWN;
RIGHT BASKET/DOWN.
NOTE: If the proper key sequence is not
entered within 6 seconds the control exits
PROGRAM MODE.
2. Beeper chirp’s on each successful keypress; If
a key is not pressed within 2 minutes, the
control will automatically exit programming.
3. To scroll through each of the PROGRAM
ITEMS, press V and release.
4. To exit PROGRAM MODE, at any time, press
V and hold for 1 second.
PROGRAM
ITEM KEY SEQUENCE DISPLAY 5
Left Timer • Press Left Basket to increase or Right Basket to
decrease cook time. 1
LED above left basket is on.
15:00 time value with flashing colon (MM:SS).
Right Timer • Press Left Basket to increase or Right Basket to
decrease cook time. 1
LED above right basket is on.
15:00 time value with flashing colon (MM:SS).
Set point
Temperature • Press Left Basket to increase or Right Basket to
decrease set point temperature. 2
340F or 171C
current set point with flashing F or C
Calibration
Offset • Press Left Basket to increase or Right Basket to
decrease offset temperature. 2, 3
00F OR -00F
always in /F
Melt Options
• Press Left Basket or Right Basket to scroll thru
Melt Options.
CY L
CY L = Liquid
CY S = Solid
CY 0 = No
Energy Source • Press Left Basket or Right Basket to select the
fryer<s energy source, electric or gas heat. ELEC or gAS
Parameter
Lock • Press Left Basket or Right Basket to select
desired Parameter Lock Condition. 4
Uloc or LoC
selected parameter is enabled if flashing
Degrees
F or C
• Press Left Basket or Right Basket to select
desired Temperature Scale. For C
NOTES: 1. Time will change in one second increments, accelerating if the button is held.
2. Temperature will change in one degree increments, accelerating if the button is held.
3. Range -20 to +20, default = 0 (/F).
4. Selecting Parameter Lock enabled will take effect on the next Program Mode entry.
5. Default value shown in bold.