Henny Penny OFE-321 Service Manual
TECHNICAL MANUAL
Henny Penny
CFA Electric Open Fryer
Model OFE-321
Model OFE-322
Model OFE-321,322
TABLE OF CONTENTS
Section Page
Section 1. TROUBLESHOOTING ...................................................................................................1-1
1-1. Introduction .............................................................................................................1-1
1-2. Safety ......................................................................................................................1-1
1-3. Troubleshooting ......................................................................................................1-2
1-4. Warnings and Error Messages ................................................................................1-5
Section 2. MAINTENANCE .............................................................................................................2-1
2-1. Introduction .............................................................................................................2-1
2-2. Maintenance Hints ..................................................................................................2-1
2-3. Complete Control Panel Replacement ....................................................................2-1
2-4. Power Switch ..........................................................................................................2-2
2-5. Transformer .............................................................................................................2-2
2-6. I/O Power Supply Boards Assembly .......................................................................2-3
2-7. Drain Microswitch ..................................................................................................2-3
2-8. Filter Switch ............................................................................................................2-4
2-9. Heating Elements ....................................................................................................2-5
2-10. Heating Contactors ..................................................................................................2-8
2-11. Speaker Assembly ...................................................................................................2-10
2-12. High Temperature Limit Control ............................................................................2-11
Wiring Diagrams .....................................................................................................2-13
Section 3. PARTS INFORMATION .................................................................................................3-1
3-1. Introduction .............................................................................................................3-1
3-2. Genuine Parts ..........................................................................................................3-1
3-3. When Ordering Parts ...............................................................................................3-1
3-4. Prices .......................................................................................................................3-1
3-5. Delivery ...................................................................................................................3-1
3-6. Warranty ..................................................................................................................3-1
3-7. Recommended Spare Parts for Distributors ............................................................3-1
FM06-004
Revised 2-24-15
Jan. 2009 i
DANGER INDICATES AN IMMINENTLY
SERIOUS INJURY.
WARNING indicates a potentially hazardous situation
CAUTION used wih the safety alert symbol indicates a
CAUTION used without the safety alert symbol indicates a
result in property damage.
NOTICE is used to highlight especially important
SAFETY ALERT SYMBOL is used with DANGER,
injury type hazard.
SECTION 1. TROUBLESHOOTING
1-1. INTRODUCTION This section provides troubleshooting information in the form of
an easy to read table.
If a problem occurs during the first operation of a new fryer, recheck the Installation Section of the Operator’s Manual.
Before troubleshooting, always recheck the Operation Section of the Operator’s Manual.
1-2. SAFETY Where information is of particular importance or is safety related,
the words DANGER, WARNING, CAUTION, or NOTE are used.
Their usage is described on the next page:
WARNING or CAUTION which indicates a personal
information.
potentially hazardous situation which, if not avoided, may
potentially hazardous situation which, if not avoided,
could result in minor or moderate injury.
which, if not avoided, could result in death or serious
injury.
HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, WILL RESULT IN DEATH OR
Apr. 2005 1-1
PROBLEM
CAUSE
CORRECTION
With the switch in the POWER
• Open circuit
• Check to see if unit is plugged in
Shortening will not heat but lights
• Faulty contactor (elec. unit)
• Check contactor per Heating
1-3. TROUBLESHOOTING To isolate a malfunction, proceed as follows:
1. Clearly define the problem, or symptom and when it
occurs.
2. Locate the problem in the troubleshooting table.
3. Review all possible causes, then one at a time, work
through the list of corrections until the problem is solved.
If maintenance procedures are not followed correctly,
injuries and/or property damage could result.
position, fryer is completely
inoperative
are on
• Faulty temperature probe
• Faulty high limit
• Faulty drain switch
• Check breaker or fuse at supply
box
• Check POWER switch per Power
Switch Section; replace if defective
• Check voltage at wall receptacle
• Check cord and plug
Contactors Section
• Check temperature probe per
Temperature Probe Replacement
Section; “E-6A or B”
•Check high limit per the
appropriate High Temperature
Limit Control Section; “E-10”
•Check drain switch per Drain
Microswitch Section; “E-15”
1-2 Dec. 2016
PROBLEM
CAUSE
CORRECTION
Heating of shortening too slow
• Low or improper voltage
• Use a meter and check the
Shortening overheating
• Temperature probe needs
• Calibrate temperature probe if ±
temperature
Foaming or boiling over of
• Water in shortening
• At end of cook cycle, drain
thoroughly
1-3. TROUBLESHOOTING (Continued)
(elec. unit)
• Weak or burnt out elements
(elec. unit)
• Wire(s) loose
• Burnt or charred wire connection
• Faulty contactor
calibration
• Mercury contactor stuck closed
• Bad control board
receptacle voltage against the data
plate
• Check heating elements per
Heating Elements Section
• Tighten
• Replace wire and clean
connectors
• Check contactor per Heating
Contactors Section
10 degrees off; if more than ± 10
degrees off, replace temperature
probe
• Check mercury contactor for not
opening; replace if necessary
(elec. Unit)
• replace control board if heat
Indicator stays on past ready
shortening
• Improper or bad shortening
• Improper filtering
• Improper rinsing after cleaning
fryer
Shortening and clean
• use recommended shortening
• refer to the Filtering the
Shortening
Section in Operator’s Manual
• Clean and rinse the frypot; then
dry
PROBLEM
CAUSE
CORRECTION
Shortening will not drain from
• Drain valve clogged with crumbs
• Open valve, force cleaning brush
Filter motor runs but pumps
• Pump clogged
• Remove pump cover and clean
Filter switch on but doesn’t run
• Defective switch
• Check/replace switch per Filter
Motor hums but will not pump
• Clogged lines or pump
• Remove and clean pump and lines
DISPLAY
CAUSE
CORRECTION
Incoming supply too low
Have voltage at the plug and
Faulty components or connections
Have elements, connections, and
Dec. 2016 1-3
1-3. TROUBLESHOOTING (Continued)
frypot
shortening slowly
• Drain valve will not open by
turning handle
• Filter line connection loose
•Solidified shortening in lines
•Defective motor
• Motor thermal protector tripped
through drain
• Replace cotter pins in valve
coupling
• Tighten all filter line connections
• Clear all filter lines of solidified
shortening
Motor Section
• Check/replace motor
• Reset thermal switch on filter
motor
• replace pump seal, rotor and
rollers
1-4. WARNINGS AND The controls monitor procedure problems and system failures
ERROR MESSAGES with warnings and error codes. The display shows the
warning or error code, and an alarm sounds.
Pressing cancels most warnings and pressing any
control button stops most error code alarms. But there are
some exceptions (see below). The display shows the error
until the situation is corrected.
“W-1”
“LOW VOLTAGE”
“W-2”
“SLOW HEAT-UP”
WARNINGS
receptacle checked
contactors checked
DISPLAY
CAUSE
CORRECTION
Product loaded into frypot before
Wait until shortening is at proper
Too much product in frypot
Do not overfill frypot
Product loaded into frypot before
Wait until shortening is at proper
Faulty components or connections
Have elements, connection, and
Faulty components or connections
Have elements, connection, and
Product overcooked. (may appear
Discard product immediately
Didn’t allow shortening to drop to
Cancel button stops this warning;
DISPLAY
CAUSE
CORRECTION
PC board too hot
Check ventilation louvers on side of
Controls sensing over 405°F or
Have heat components and
“E-6” (A or B)
FAILED”
Faulty temperature probe or
Have temperature probe and
Shortening temperature too hot,
Reset high limit (see Operating
1-4 Dec. 2016
1-4. WARNINGS AND
ERROR MESSAGES
(Continued)
WARNINGS (Continued)
“W-3”
“WAS NOT READY”
“W-4”
“SLOW COOKING”
“W-5”
“SLOW COOKING”
“W-6”
“SLOW COOKING”
“W-7”
“LOW AMPS”
“W-9”
“DISCARD PRODUCT”
“OIL TOO HOT”
lights
lights
after a “SLOW COOKING”
warning)
current product’s setpoint
temperature
temperature before loading product
temperature before loading product
contactors checked
contactors checked
once the shortening drops to
setpoint temperature, the alarm
automatically stops
“E-4”
“CPU TOO HOT”
“E-5”
“FRYER TOO HOT”
“FRYER TEMP SENSOR
“E-10”
“HIGH LIMIT TRIPPED”
ERROR CODES
above
connection
drain valve opened while heat was
on, or faulty limit
fryer for obstruction; if louvers are
clear, have PC board checked
temperature probe checked
connection checked
Components Section); check
shortening temperature for
overheating; have heat components
checked if high limit continues to
trip.
DISPLAY
CAUSE
CORRECTION
Drain is open or faulty microswitch
Close drain; have drain microswitch
Wrong or faulty elements or wiring
Have electrical supply, wiring, and
Faulty contactors or PC board
Have the contactors and PC board
disconnect electrical power to fryer
Memory scrambled; an individual
Turn the POWER switch off and
Faulty eprom or PC board
Turn the POWER switch OFF and
Failure of 12 volt DC supply on the
Turn the COOK/PUMP swithc OFF
Dec. 2016 1-5
1-4. WARNINGS AND
ERROR MESSAGES
(Continued)
ERROR CODES (Continued)
“E-15”
“DRAIN IS OPEN”
“E-25”
“HEAT AMPS WERE
TOO TIGHT”
“E-26”
“HEAT AMPS ARE
LOCKED ON”
problem
checked if error code persists
elements checked
Because of the seriousness of this
error code, turn the POWER switch
off and back on to cancel
checked
This error code could be displayed
even with the POWER switch
turned off. Unplug the fryer or shut
off the wall circuit breaker to
“E-41”
“SYSTEM DATA LOST”
“E-46”
“DATA SAVE FAILED”
“ANALOG SYSTEM OR 12
“E-47”
VOLT FAILED
product program may be scrambled:
Ex: “E-41 -2- DATA LOST”; this
means product #2 program is
scrambled
I/O board
Amp sensors plugged in backwards
Faulty PC board
back on; if error code persists, have
the PC board checked or
re-initialized
back on; if error code persits, have
the PC board checked or
re-initialized
and back to COOK; if the and
DO NOT light up when the
8888’s are displayed, have the I/O
baord replaced
Have positions of amp sensors
checked
Have control panel replaced
DISPLAY
CAUSE
CORRECTION
Failure of 12 volt DC supply on the
Turn the COOK/PUMP switch to
Faulty POWER switch or switch
Have POWER swithc checked,
Blown 24 volt controller fuse, or
Have the 14-pin cable connector
1-6 Apr. 2005
1-4. WARNINGS AND
ERROR MESSAGES
(Continued)
ERROR CODES (Continued)
“E-48”
“INPUT SYSTEM ERROR”
“E-70”
“PWR SW OR WIRES FAILED”
“E-92”
“24 VOLT FUSE”
I/O board
Faulty PC board
wiring; faulty I/O board
bad 14-pin cable connection
OFF and back to COOK; if the
and DO NOT light up when
the 8888’s are displayed, have the
I/O board replaced
Have the control panel replaced
along with its wiring; have I/O
board checked
checked or have the fryer chekced
for a short to ground in components
such as the drain switch, or high
limit and wiring
Dec. 2016
1-7
SECTION 2. MAINTENANCE
2-1. INTRODUCTION This section provides procedures for the checkout and replacement
of the various parts used within the fryer. Before replacing any
parts, refer to the Troubleshooting Section. It will aid you in
determining the cause of the malfunction.
2-2. MAINTENANCE HINTS 1. You may need to use a multimeter to check the electric
components.
2. When the manual refers to the circuit being closed, the
multimeter should read zero unless otherwise noted.
3. When the manual refers to the circuit being open, the
multimeter will read infinity.
2-3. COMPLETE CONTROL
PANEL REPLACEMENT Should the control board become inoperative, follow these
instructions for replacing the board.
1. Remove electrical power supplied to the unit.
To avoid electrical shock or property damage, move the
POWER switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
2. Remove the four screws securing the control panel and lift out.
3. Unplug the wire connectors going to the control board.
4. Install new control panel in reverse order.
When plugging connectors onto new control panel, be sure
the connectors are inserted onto all of the pins, and that the
connectors are not forced onto the pins backwards. If not
connected properly, damage to the board could result.
Apr. 2005 2-1
2-4. POWER SWITCH 1. Remove electrical power supplied to fryer.
To avoid electrical shock or property damage, move the
POWER switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
2. Remove control panel.
3. Label and remove the wires from the switch. With test
instrument, check across the terminals of the switch with the
switch in the ON position, then in the OFF position. With the
switch in the ON position, the circuit should be closed. With
the switch in the OFF position, the circuit should be open. If
the switch checks defective, replace by continuing with this
procedure.
4. With control panel removed, and the wires off the switch, push
in on tabs on the switch to remove from panel.
5. Replace with new switch, and reconnect wires to switch.
6. Replace the control panel.
2-5. TRANSFORMER The transformer reduces voltage down to accommodate those
components with low voltage.
1. Remove electrical power supplied to the unit.
To avoid electrical shock or property damage, move the
POWER switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
2. Remove the control panel as discussed in Complete Control Panel
Replacement Section.
3. Squeeze on the wire connector at the I/O board assembly to
disconnect the wires from the transformer.
4. Using a Phillips head screwdriver, remove the two screws
securing the transformer to the shroud.
5. Install the new transformer in reverse order.
2-2 Apr. 2005
2-6. I/O POWER SUPPLY
BOARD ASSEMBLY The input/output power supply board assembly distributes
voltage to the various components in the fryer. The board also
receives information from components in the fryer.
1. Remove electrical power supplied to the unit.
To avoid electrical shock or property damage, move the
POWER switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
2. Remove the control panel as discussed in Complete Control
Panel Replacement Section.
3. Disconnect the wire assemblies from the board.
4. Using a nut driver or wrench, remove the four keps nuts
securing the board to the shroud.
5. Install the new I/O board assembly in reverse order.
2-7. DRAIN MICROSWITCH Upon turning the drain handle, the drain microswitch circuit
should open, cutting off the pilot flame. This will prevent the fryer
from heating while shortening is being drained from the frypot.
1. Remove electrical power supplied to the unit.
To avoid electrical shock or property damage, move the
POWER switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
Apr. 2005 2-3
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