Henny Penny OFE-321 User Manual
TECHNICAL MANUAL
CFA Electric Open Fryer
Henny Penny
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 4-02-09
109 i
Model OFE-321,322
SECTION 1. TROUBLESHOOTING
1-1. INTRODUCTION
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,
This section provides troubleshooting information in the form of
the words DANGER, WARNING, CAUTION, or NOTE are used.
Their usage is described on the next page:
SAFETY ALERT SYMBOL is used with DANGER,
WARNING or CAUTION which indicates a personal
injury type hazard.
NOTICE is used to highlight especially important
information
.
CAUTION used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided, may
result in property damage.
CAUTION used wih the safety alert symbol indicates a
potentially hazardous situation which, if not avoided,
could result in minor or moderate injury.
WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury.
DANGER INDICATES AN IMMINENTLY
HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, WILL RESULT IN DEATH OR
405 1-1
SERIOUS INJURY.
Model OFE-321,322
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.
PROBLEM CAUSE CORRECTION
With the switch in • Open circuit • Check to see if unit is plugged in
the POWER position,
fryer is completely • Check breaker or fuse at supply box
inoperative
• Check POWER switch per Power Switch
Section; replace if defective
• Check voltage at wall receptacle
• Check cord and plug
Shortening will not • Faulty contactor • Check contactor per Heating Contactors
heat but lights are on (elec. model) Section
• Faulty temperature • Check temperature probe per Temperature
probe Probe Replacement Section; “E-6A or B”
• Faulty high limit • Check high limit per the appropriate High
Temperature Limit Control Section; “E-10”
• Faulty drain switch • Check drain switch per Drain Microswitch
Section; “E-15"
1-2 405
Model OFE-321,322
1-3. TROUBLESHOOTING(Continued)
PROBLEM CAUSE CORRECTION
Heating of • Low or improper • Use a meter and check the receptacle
shortening too voltage (elec. unit) voltage against the data plate
slow
• Weak or burnt out • Check heating elements per Heating
elements (elec. unit) Elements Section
• Wire(s) loose • Tighten
• Burnt or charred • Replace wire and clean connectors
wire connection
• Faulty contactor • Check contactor per Heating Contactors
Section
Shortening • Temperature probe • Calibrate temperature probe if ± 10° off;
overheating needs calibration if more than ± 10° off, replace temperature
probe
• Mercury contactor • Check mercury contactor for not opening;
stuck closed replace if necessary (elec. unit)
• Bad control board • Replace control board if heat indicator stays
on past ready temperature
Foaming or boiling • Water in shortening • At end of cook cycle, drain shortening and
over of shortening clean
• Improper or bad • Use recommended shortening
shortening
• Improper filtering • Refer to the Filtering the Shortening
Section in Operator’s Manual
• Improper rinsing • Clean and rinse the frypot; then dry
after cleaning fryer thoroughly
405 1-3
Model OFE-321,322
1-3. TROUBLESHOOTING
(Continued)
PROBLEM CAUSE CORRECTION
Shortening will not • Drain valve clogged • Open valve, force cleaning brush through
drain from frypot with crumbs drain
• Drain valve will not • Replace cotter pins in valve coupling
open by turning
handle
Filter motor runs • Pump clogged • Remove pump cover and clean
but pumps shortening
slowly • Filter line connection • Tighten all filter line connections
loose
• Solidified shortening • Clear all filter lines of solidified shortening
in lines
Filter switch on but • Defective switch • Check/replace switch per Filter Switch
motor does not run Section
• Defective motor • Check/replace motor
• Motor thermal • Reset thermal switch on filter motor
protector tripped
Motor hums but • Clogged lines or • Remove and clean pump and lines
will not pump pump
• Replace pump seal, rotor and rollers
1-4 405
Model OFE-321,322
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.
WARNINGS
DISPLAY CAUSE CORRECTION
“W-1” Incoming supply voltage too low Have voltage at plug and receptacle checked
“LOW
VOLTAGE”
“W-2” Faulty components or connections Have elements, connections, and contactors
“SLOW checked
HEAT-UP”
“W-3” Product loaded into frypot Wait until shortening is at proper temperature
“WAS NOT before lights before loading product
READY”
“W-4” Too much product Do not overfill frypot
“SLOW in frypot
COOKING”
“W-5 Product loaded into frypot Wait until shortening is at proper temperature
“SLOW before lights before loading product
COOKING”
“W-6” Faulty components or connections Have elements, connections, and contactors
“SLOW checked
COOKING”
“W-7” Faulty components or connections Have elements, connections, and contactors
“LOW AMPS” checked
“W-9” Product overcooked. (may Discard product immediately
“DISCARD appear after a “SLOW COOKING”
PRODUCT” warning)
“OIL TOO Didn’t allow shortening to drop Cancel button stops this warning; once the
HOT” to current product’s setpoint shortening drops to setpoint temperature,
temperature the alarm automatically stops
405 1-5
Model OFE-321,322
1-4. WARNINGS AND
ERROR MESSAGES
(Continued)
DISPLAY CAUSE CORRECTION
“E-4” PC board too hot Check ventilation louvers on side of fryer
“CPU TOO for obstructions; if louvers are clear,
HOT” have PC board checked
“E-5” Controls sensing 405°F Have heat components and temperature
“FRYER TOO or above probe checked
HOT”
“E-6” (A or B) Faulty temperature probe or Have temperature probe and connection
“FRYER connection checked
TEMP
SENSOR
FAILED”
“E-10” Shortening temperature too hot, Reset high limit (see Operating Components
“HIGH LIMIT drain valve opened while heat was Section); check shortening temperature for
TRIPPED” on, or faulty high limit overheating; have heat components checked
if high limit continues to trip.
“E-15” Drain is open or faulty microswitch Close drain; have drain microswitch
“DRAIN IS checked if error code persists
OPEN”
“E-25” Wrong or faulty elements or wiring Have electrical supply, wiring, and elements
“HEAT AMPS problem checked
WERE TOO
HIGH”
Because of the seriousness of this
ERROR CODES
error code, turn the POWER switch
off and back on to cancel
“E-26” Faulty contactors or PC board Have the contactors and PC board checked
“HEAT AMPS
ARE LOCKED
ON”
This error code could be displayed
even with the POWER switch turned
off. Unplug fryer or shut off the
wall circuit breaker to disconnect
electrical power to fryer.
1-6 405
Model OFE-321,322
3-5. WARNINGS AND
ERROR MESSAGES
(Continued)
ERROR CODES
DISPLAY CAUSE CORRECTION
“E-41” Memory scrambled; an individual Turn the POWER switch off and back
“SYSTEM product program may be scrambled: on; if error code persists, have the
DATA LOST” Ex: “E-41 -2- DATA LOST”; this PC board checked or re-initialized
means product #2 program is
scrambled
“E-46” Faulty eprom or PC board Turn the POWER switch OFF and back
“DATA SAVE on; if error code persists, have the
FAILED” PC board checked or re-initialized
“E-47” Failure of 12 volt DC supply Turn the COOK/PUMP switch OFF and back
“ANALOG on the I/O board to COOK; if the and DO NOT
SYSTEM
OR 12 VOLT light up when the 8888’s are displayed, have the
FAILED” I/O board replaced
Amp sensors plugged in backwards Have positions of amp sensors checked
Faulty PC board Have control panel replaced
“E-48”
INPUT on the I/O board to COOK; if the and DO NOT
SYSTEM
ERROR” light up when the 8888’s are displayed, have the
I/O board replaced
“E-70” Faulty POWER switch Have POWER switch checked, along
“PWR SW or switch wiring; faulty with its wiring; have I/O board checked
OR WIRES I/O board
FAILED”
“E-92” Blown 24 volt controller fuse, or Have the 14-pin cable connector checked or
“24 VOLT bad 14-pin cable connection have the fryer checked for a short to ground
FUSE” in components such as the drain switch,
or high limit and wiring
405 1-7
Failure of 12 volt DC supply Turn the COOK/PUMP switch OFF and back
Faulty PC board Have control panel replaced
Model OFE-321,322
SECTION 2. MAINTENANCE
2-1. INTRODUCTION
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
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.
This section provides procedures for the checkout and replacement
1. You may need to use a multimeter to check the electric
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.
2-1 405
Model OFE-321,322
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.
405 2-2
Model OFE-321,322
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.
2-3 405
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