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

after a “SLOW COOKING” warning)

current product’s setpoint temperature

temperature before loading product

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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