Frymaster, a member of the Commercial Food Equipment Service Association, recommends
using CFESA Certified Technicians.
24-Hour Service Hotline 1-800-551-
8633
SEPTEMBER 2011
NOTICE
IF, DURING THE WARRANTY PERIOD, THE CUSTOMER USES A PART FOR THIS MANITOWOC
FOOD SERVICE EQUIPMENT OTHER THAN AN UNMODIFIED NEW OR RECYCLED PART
PURCHASED DIRECTLY FROM FRYMASTER DEAN, OR ANY OF ITS AUTHORIZED SERVICE
CENTERS, AND/OR THE PART BEING USED IS MODIFIED FROM ITS ORIGINAL
CONFIGURATION, THIS WARRANTY WILL BE VOID. FURTHER, FRYMASTER DEAN AND ITS
AFFILIATES WILL NOT BE LIABLE FOR ANY CLAIMS, DAMAGES OR EXP ENSES INCUR RED B Y
THE CUSTOMER WHICH ARISE DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, DUE TO
THE INSTALLATION OF ANY MODIFIED PART AND/OR PART RECEIVED FROM AN
UNAUTHORIZED SERVICER.
DANGER
Copper wire suitable for at least 167°F (75°C) must be used for power connections.
DANGER
The electrical power supply for this appliance must be the same as indicated on the
rating and serial number plate located on the inside of the fryer door.
DANGER
This appliance must be connected to the voltage and phase as specified on the rating
and serial number plate located on the inside of the fryer door.
DANGER
All wiring connections for this appliance must be made in accordance with the wiring
diagrams furnished with the equipment. Wiring diagrams are located on the inside of
the fryer door.
DANGER
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this
or any other appliance.
WARNING
Do not attach accessories to this fryer unless fryer is secured from tipping. Personal
injury may result.
WARNING
Frymaster fryers equipped with legs are for permanent installations. Fryers fitted with
legs must be lifted during movement to avoid damage and possible bodily injury. For a
moveable or portable installation, Frymaster optional equipment casters must be used.
Questions? Call 1-800-551-8633
WARNING
Do not use water jets to clean this equipment.
DANGER
All wiring connections for this appliance must be made in accordance with the wiring
diagrams furnished with the equipment. Wiring diagrams are located on the inside of
the fryer door.
WARNING
This equipment is intended for indoor use only. Do not install or operate this
equipment in outdoor areas.
ii
Flatbottom Series Electric Fryers
TABLE OF CONTENTS
Page
CHAPTER 1 – SERVICE PROCEDURES 1-1
1.1 General 1-1
1.2 Calibrating the Thermatron Controller
1.3 Accessing the Control Box Electronics
1.4 Replacing an Thermatron Temperature Control Board 1-3
1.5 Replacing a Transformer 1-3
1.6 Replacing a Contactor 1-4
1.7 Replacing a Safety Drain Relay 1-4
1.8 Replacing a Breaker 1-4
1.9 Replacing a Thermatron Potentiometer 1-4
1.10 Replacing a Temperature Sensor and High-Limit Thermostat 1-5
1.11 Replacing Heating Elements inside Frypot 1-6
1.12 Replacing Heating Element under the Frypot 1-7
1.13 Replacing a Frypot 1-7
1.14 Cleaning a Seized Pump 1-7
1.15 Probe Resistance Chart 1-9
1.16 Element Wattage/Amperage Calculation Charts 1-9
1.17 Troubleshooting Guides 1-10
1.18 Wiring Diagrams 1-13
CHAPTER 2 – PARTS LIST 2-1
2.1 Accessories 2-1
2.2 Cabinetry
2.3 Control Panels, Wireways and Related Components 2-8
2.4 Electronics Components 2-10
2.5 Filter Components
2.6 Elements and Related Components 2-16
2.7 Harnesses 2-17
2.8 Oil Discharge Assembly
2.9 Oil Return Assembly 2-20
2.10 Drain Valves and Associated Parts
2.11 Drain and Oil Return Components 2-22
2.12 Wiring Connectors, Pin Terminals and Power Cords
1-1
1-3
2-2
2-12
2-19
2-21
2-25
iii
FLATBOTTOM SERIES ELECTRIC FRYERS
CHAPTER 1: SERVICE PROCEDURES
1.1 General
Before performing any maintenance on your Frymaster Dean Flatbottom Electric fryer, you must
disconnect the electrical power supply.
When electrical wires are disconnected, it is recommended that they be marked to facilitate
reassembly.
DANGER
Hot cooking oil will cause severe burns. Never attempt to move this appliance when filled
with hot cooking oil, or to transfer hot cooking oil from one container to another.
DANGER
This equipment should be unplugged when servicing, except when electrical circuit tests are
required. Use extreme care when performing such tests.
This appliance may have more than one electrical power supply connection point.
Disconnect all power cords before servicing.
Inspection, testing and repair of electrical components should be performed by an
authorized service agent only.
A Thermatron system incorporates a temperature-control circuit board, a potentiometer, and a
temperature probe.
1. Thermatron with Melt Cycle Option Enabled: Set Thermatron to the working temperature. The
elements will cycle on approximately 5 seconds, and off for approximately 15 seconds until the
temperature reaches 66°C (150°F). The Thermatron will then switch to normal operation.
1.2 Thermatron Calibration
If the Thermatron controller requires adjustment, do the following:
1. Set Thermatron controller dial to the desired shortening temperature and wait for the shortening
temperature to stabilize.
2. When shortening temperature reaches setpoint (elements will cycle on and off, indicating
setpoint temperature has been reached), check the temperature with a high-quality immersion
thermometer.
3. Loosen the knob setscrew and rotate the knob to the correct temperature setting on the
Thermatron faceplate.
4. Check the temperature again with a high-quality immersion thermometer to confirm that the
setting is correct.
5. Re-tighten the knob setscrew at the calibrated position.
1-1
Rocker
Switch
Panel
Control Box
Access
Drain Nipple
Extension
Bracket
IDENTIFYING PARTS
Drain
Breakers
Thermatron
Controller
Contactor
Safety Drain
Relay
Transformer
Control Box
Breaker
Terminal Block
Thermatron Board
1-2
1.3 Accessing the Control Box Electronics
(Interface Board, Transformer, Contactor, Breakers, Transformer and Relay)
1. Unplug all power cords.
2. Open front door of cabinet and remove the two bolts holding down the drain nipple extension
bracket.
3. Remove the three screws from bottom of control box access panel.
4. Remove the four screws in the corner of rocker switch access panel. Twist the rocker panel and
push through the access panel opening.
5. Unplug the Thermatron connector and remove access panel and set aside.
1.4 Replace Thermatron Board
1. Unplug all power cords. Perform Procedure 1.3, Steps 1-5, Accessing Control Box Electronics.
2. Remove all wiring from the terminals of the Thermatron board, ensuring that each wire is
marked for reattachment.
3. Remove the nuts from each corner of the Thermatron temperature control board and slide the
board from the studs. Ensure that standoffs remain in place on studs, prior to installing new
board. Install the new board by reversing the previous procedures. Ensure that wiring and wire
harnesses are connected to the proper terminals.
1.5 Replace Transformer
1. Unplug all power cords. Perform Procedure 1.3, Steps 1-5, Accessing Control Box Electronics.
2. Remove all wiring from the terminals of the transformer to be replaced.
3. Remove the screws that secure the transformer to the component box.
4. Install the new transformer by reversing the preceding procedures. Make sure you reconnect the
wiring to the proper terminals and the harnesses to the correct connectors.
1-3
1.6 Replace Contactor
1 Unplug all power cords. Perform Procedure 1.3, Steps 1-5, Accessing Control Box Electronics.
2. Identify faulty contactor. Remove all wiring connected to the contactor terminals inside the
component box. Tape wire-pairs together and mark each wire-set or wire for reassembly.
3. Remove contactor-mounting screws and remove the contactor.
4. Install the new contactor and connect the wiring removed in Step 2.
5. Reassemble in reverse order.
1.7 Replace Safety Drain Relay
1. Unplug all power cords. Perform Procedure 1.3, Steps 1-5, Accessing Control Box Electronics.
2. The safety drain relay is located in the top left corner of the access cabinet.
3. Carefully remove the relay hold down spring.
4. Pull relay to the left and out of the socket.
5. Install the new relay by reversing the preceding procedures.
1.8 Replace Breakers
1. Unplug all power cords. Perform Procedure 1.3, Steps 1-5, Accessing Control Box Electronics.
2. Identify faulty breaker. Remove all wiring connected to the breaker terminals inside the
component box. Tape wire-pairs together and mark each wire-set or wire for reassembly.
3. Remove breaker-mounting screws and remove the breaker.
4. Install the new breaker by reversing the preceding procedures.
1.9 Replace Thermatron Potentiometer
1. Unplug all power cords.
2. Open front door of cabinet and remove the four screws in corners of potentiometer panel.
3. Unplug connector.
4. Install the new potentiometer by reversing the preceding procedures.
1-4
1.10 Replace Temperature Sensor and High-Limit Thermostat Probes
1. Unplug all power cords.
2. Drain the cooking oil from the frypot and
leave the drain open.
3. Lift up and remove the element
guardplate.
4. Remove the two screws from the bottom
of the faceplate cover.
5. After removing screws, gently tilt up and
lower faceplate. Note that when lowering
Element Guardplate
the faceplate, the door will lower and
swing out to be set aside as well.
6. Remove the six screws from the top access
cover.
7. After removing screws, remove panel by
lowering down the front of the frame and
pushing in on the high-limit reset switch
so that it will slide down. To make
reassembly easier, push out the black
grommet and snap back in when
completely reassembled.
8. Remove the screws securing the probe
bracket to the elements and remove the
Underside of
faceplate has
two screws.
Top access cover
has six screws.
probe bracket.
9. Remove the metal clamps securing the
probe to the elements.
10. Disconnect the wire plug containing the
probe wiring.
11. Using an open end wrench, loosen the
temperature probe. Thread the probe wire
through the hole and remove the probe.
Remove the screws from probe brackets.
1-5
12. Thread the new probe wire through the
hole in front of the fryer. The probe
assembly should be oriented in the same
manner as the probe being replaced. Place
the new probe assembly onto the element,
and ensure that the probe extends 1”
beyond the front of the bracket before
securing the bracket. Also ensure that the
springs are on each probe under each
bracket.
13. Apply Loctite PST567 sealant to
replacement threads.
14. Screw the replacement probe into the
frypot and tighten 170-180 inch-pounds
torque. DO NOT OVERTIGHTEN.
15. Reattach the connector and reassemble in
High-Limit Thermostat Temperature
Sensor
reverse order.
1.11 Replace Heating Elements inside Frypot
1. Perform Procedure 1.10, Replace
Temperature Probe, Steps 1-9.
2. Remove the four screws from the two
brackets in the rear of the frypot that
secure the element to the frypot.
3. Remove wires from the elements by
loosening and removing the nuts.
4. Remove element using an open-end
wrench or other suitable tool to loosen the
compression fitting.
Remove screws here.
5. Gently remove the element by sliding out into the frypot and lifting up as you remove it.
6. Insert new element and reassemble in reverse order.
1-6
1.12 Replace Heating Element under the Frypot
1. Perform Procedure 1.10, Replace Temperature Probe, Steps 1-9.
2. Remove the wires from the element by removing the nuts on each end of the element.
3. Remove the screws attaching the element bracket to the cabinet.
4. Gently slide the element out by pulling towards the front of the fryer.
5. Insert new element and reassemble in reverse order.
1.13 Replace Frypot
1. Perform Procedure 1.10, Replace Temperature Probe, Steps 1-9.
2. Perform Procedure 1.3, Accessing the Control Box Electronics, Steps 1-5.
5. Remove the screws holding the back panels to the frame.
6. Remove the screws securing the frypot to the front frame of the fryer.
7. Carefully lift the frypot from the cabinet.
8. Remove the drain valve from the old frypot and install on the new frypot.
9. Apply Loctite Sealant PST 567 to the high-limit threads. Install high-limit into the new frypot.
10. Follow the preceding steps in reverse to install the new frypot into the fryer.
11. NOTE: Apply Loctite Sealant PST 567 to all pipefittings prior to installation.
1.14 Cleaning a Seized Pump
If the pump motor overloads, a circuit breaker will trip and the motor will not start until the breaker
is reset. If the pump motor does not start, press the white reset button located under the component
box, inside the cabinet.
If the pump starts after resetting the breaker, then something is causing the motor to overload. A
major cause of overload is filtering several frypots sequentially, creating thermal overload on the
1-7
motor. Allow the pump motor to cool at least 30 minutes before resuming operation, and allow time
for the motor to cool between frypots.
Motor overload can be caused by:
• Solidified shortening in the pan or filter lines,
or
• Attempting to filter unheated oil.
Cold oil is more viscous, causing the pump motor to trip a breaker. Always filter with the oil at
operating temperature [~350°F (177°C)].
If the motor runs but the pump does not, there is a blockage in the pump or lines. Incorrectly sized
or installed paper/pads will allow food particles and sediment to pass through the filter pan and into
the pump. When sediment enters the pump, the gears bind, causing the motor to overload, again
tripping the breaker. Shortening that has solidified in the pump will produce the same result.
A pump seized by debris or hard shortening must be disassembled, cleaned, and reassembled. Use
the following procedure:
1. Disconnect power to the filter system.
2. Remove the front cover of the pump to access the gears inside (see illustration below- 8-GPM
pump shown), if the pump is accessible inside the cabinet.
Remove bolts to remove
pump cover.
Remove debris or hardened
shortening to free gears.
3. If the front cover is not accessible, the pump must be removed from the pump motor (remove
input/output plumbing from the pump prior to removing pump). Remove three setscrews from
the pump-shaft housing to disengage the pump from the motor. Remove the gears and
thoroughly clean all internal components. Ensure the inside of the pump housing is free of any
debris or hardened shortening before reassembling. Failure to completely clean the inside housing and ring gear will cause gear binding after reassembly.
Filter paper/pads that are the wrong size or installed incorrectly will also allow food particles and
sediment to pass through and clog the suction tube in the bottom of the filter pan. Particles large
enough to block the suction tube may indicate that the crumb tray is not being used.
1-8
1.15 Probe Resistance Chart
Use the chart below when testing temperature probes and probe circuits for proper operation.
Probe Resistance Chart
Current-Style Thermatron Systems (Probe wire
color: Two Black Wires or Two Brown Wires)
° Celsius ° Fahrenheit Ohms (± 3%)
Use the charts below when changing voltages or determining amperage for a given element
configuration.
L1
L1
Three Phase
Amperage
L2
L3
To determine Three Phase Amperage, solve for
Single Phase first:
Wattage
Voltage
Then divide the Single Phase Amperage by 1.73 to
determine Three Phase Amperage.
Example:
17,000W
= 40.944 Amps per Phase
= Single Phase Amps
70.833 Amps
240V
=
1.73
To compute the New Wattage Rating of an element if a
different voltage is applied, use the following formula:
New Voltage
[]
Old Voltage
= New Wattage Rating
Example:
If 208V supply is applied to a 17 kW element
rated for 240V, the calculation is as follows:
208V
[]
240V
= 12.77 kW
Three Phase
Wattage
L2
L3
2
kW Listed
X
2
X
17,000 Watts
1.17 Troubleshooting
1.17.1 Control and Heating Problems
Problem Probable Causes Corrective Action
A. Power cord is not plugged in or circuit
breaker is tripped.
B. Controller has failed.
Controller won't
activate.
C. Power supply component or
temperature control board has failed.
A. Plug power cord in and verify that
circuit breaker is not tripped.
B. If available, substitute a controller
known to be working for the
suspect controller. If the substitute
controller functions correctly, order
a new controller.
C. If any of the components in the
power supply system (including the
transformer and temperature control
oard) fail, power will not be
supplied to the controller and it will
not function.
1-10
Problem Probable Causes Corrective Action
Fryer does not heat.
Fryer repeatedly
cycles on and off when
first started.
Fryer heats until high-
limit trips with heat
indicator ON.
Fryer heats until high-
limit trips without
heat indicator ON.
Fryer stops heating
with heat indicator
ON.
A. Controller has failed.
B. One or more other components have
failed.
Fryer is in melt-cycle mode.
Temperature probe or controller has
failed.
Contactor, element or controller has
failed.
The high-limit thermostat or contactor
has failed.
A. If available, substitute a controller
known to be working for the
suspect controller. If the substitute
controller functions correctly, order
a new controller.
B. If the circuitry in the fryer control
system cannot determine the frypot
temperature, the system will not
allow the element to be energized
or will de-energize the element if it
is already energized. If the
contactor, element, or associated
wiring fails, the element will not
energize.
In fryers equipped with Thermatron
controllers, burners cycle on
approximately 5 seconds and off for
15 seconds until the temperature
reaches 66°C (150°F).
If available, substitute a controller
known to be working for the suspect
controller. If the substitute controller
functions correctly, order a new
controller. If the substitution of the
controller does not resolve the
problem, the most likely cause is a
failed temperature probe.
If available, substitute a controller
known to be working for the suspect
controller. If the substitute controller
functions correctly, order a new
controller from FAS. If the
substitution of the controller does not
resolve the problem, the most likely
cause is a contactor that has failed in
the closed position or an element that
has failed.
The fact that the heat indicator is ON
indicates that the controller is
functioning properly and is calling for
heat. The high-limit thermostat
functions as a normally closed switch.
If the thermostat fails, the "switch"
opens and power to the elements is
shut off. If the contactor fails to close,
no power is supplied to the elements.
1-11
1.17.2 Filtration Problems
b
Problem Probable Causes Corrective Action
A. Verify that the power cord is fully
plugged in. If so, verify that circuit
breaker is not tripped.
B. Pump blockages are usually caused
by sediment
due to improperly sized or installed
filter paper and failure to use the
crumb screen.
uildup in the pump
Filter pump won't
start.
A. Power cord is not plugged in or circuit
breaker is tripped.
B. Blockage in filter pump.
Test: Close the drain valve and pull
the filter pan out from the fryer.
Activate the pump. If the pump motor
hums for a short time then stops, the
probable cause is blockage of the
pump itself.
18 823-4063 Caster Support
19 823-4064 Caster Channel Support
20
*
*
21
*
*
22
23
24
* Not Illustrated
Part Number Description
826-1117 Caster Assembly, 5” Wheel w/o Brake
810-03565” Wheel w/o Brake
826-1389Screw, ¼-20x ¾ Hex Head ZP (Pkg. of 10)
809-0191Washer, Lock ¼ Spring ZP
826-1118 Caster Assembly, 5” Wheel w/ Brake
810-03575” Wheel w/ Brake
826-1389Screw, ¼-20x ¾ Hex Head ZP (Pkg. of 10)
809-0191Washer, Lock ¼ Spring ZP
200-4150Back, Upper Cabinet 2424
200-4152 Back, Lower Cabinet 2424
200-4154Back, Lower L/R Cabinet 2424
2-5
2.2.3 Door Assembly and Component Parts
1
8
2
4
3
5
6
9
10
11
7
Item
1
Part Number Description
106-2788 Door Assembly 1824
106-2784
106-4067SP
Door Assembly 2424
Pin Assembly, Door
806-4487SPPin, Hinge Cover & Door
810-0658 Retaining Ring (Unplated)
2 200-4588 Liner, Inner Door 1824
200-4577 Liner, Inner Door 2424
3 809-0191Washer, ¼” Lock Spring ZP
4 809-0266Screw, #10-½” Phil TR Head ZP
5 809-0918Screw, #10-24 X ½”
6 810-0179Button Plug ½”
7 810-0180 Handle, Door
8 826-1343Spring, Door Hinge Lock
9 810-1105Magnet, (Offset) Door
10 816-0529 Bumper, Rubber Self Adhesive
11 824-1150 Panel, W/A Outer Door 1824
824-1149 Panel, W/A Outer Door 2424
2-6
2.2.4 Flue Caps, Top Caps, and Related Components
1
2
5
8
11
3
14
6
4
9
12
15
7
10
13
Item
Part Number Description
1 823-4100 Deflector, 2424 Oil
2 210-4317 End Strip, 24L 18R Oil
3 210-4313Joiner Strip (Joins frypots within a system)
4 210-4598Joiner Strip, 18/2424 (Joins one fryer system to another)
5 823-4684 Fluecap, 2-2424
6 823-3474 Deflector, 2424 Short Oil
7 823-4101 Deflector, 24L 18R Oil
8 210-4802 Fluecap, 1-2424
9 823-3699 Top Assembly, One-Piece Standard Flue 1824 (use 823-3264 for 2424)
10 823-3622 Top Assembly, One-Piece Short Flue 1824 (use 823-3473 for 2424)
11 823-4916 Marine Edge 1824 (use 823-4917 for 2424)
12 210-9276 Upper Cap 1824E (use 210-9277 for 2424)
13 106-3253SPFrame Assembly, Single Crumb Dump
14 106-1638SPFrame Assembly, Double Crumb Dump
15 823-4125Insert, Crumb Dump
2-7
2.3 Control Panels, Wireways, and Related Components
Oil Discharge Assembly, SCF 2424E includes 106-2194 and 106-2192
106-2194 Oil Discharge Assembly, 2424E Component
1 810-2357 Tubing, 24E Flush Line
2 813-0003 Tee, ½ NPT BM
3 813-0022 Nipple, ½ x Close NPT BM
4 813-0087 Nipple, ½ NPT X 1 ½ BM
5 813-0156 Plug, ½ NPT Hex Head BM Pipe
6 813-0173 Union, ½ NPT BM
7 813-0368 Nipple, ½ NPT X 16.00 BM
8 813-0613 Flare Fitting ½ -37 Degree X ½
9 813-0614 Flare Fitting, ½ -37 Degree X ⅜
10 813-0625 Nipple, Black, ⅜ X Close NPT BM
11 813-0632 Elbow, Street, ⅜ -90 Deg
12 813-0730 Tee, ⅜ NPT Black