Henny Penny 342 Guide

Model OFE/OFG/OEA/OGA-341, 342

2-1. INTRODUCTION This section provides procedures for the check out 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. HIGH TEMPERATURE

LIMIT CONTROL This high temperature control is a safety, manual reset control,

(Gas Units) which senses the temperature of the shortening. If the short-

ening temperature exceeds 425°F (218°C), this switch opens

and shuts off heat to the frypot. When the temperature of the

shortening drops to a safe operation limit, the control must be

manually reset by pressing the red reset button. The red reset

button is located under the control panel, in the front of the fryer.

(Figure 2-1). This allows heat to be supplied to the frypot.

Before replacing a high temperature limit control, check to see

that its circuit is closed.

Figure 2-1

The shortening temperature must be below 380°F (193°C)

to accurately perform this check.

Checkout

To avoid electrical shock or property damage, move the

power switch to OFF and disconnect main circuit

breaker, or unplug cord at wall receptacle.

1. Remove the control panel. Figure 2-2.

Figure 2-2

1003 2-1

SECTION 2. MAINTENANCE

Model OFE/OFG/OEA/OGA-341, 342

1-3. HIGH TEMPERATURE 2. Using a Phillip’s head screwdriver, remove the screws securing

LIMIT CONTROL the inner heat shield and remove from unit. Figure 2-3.

(Gas Units) (Continued)

Figure 2-3 3. Remove the screw securing the high limit bracket to the frame

and remove the high limit and bracket from unit. Figure 2-4.

Figure 2-4 4. Remove the two screws securing the high limit to the bracket

and remove the high limit from bracket.

5. Remove the two electrical wires from the high temperature

limit control. Figure 2-5.

Figure 2-5

6. Manually reset the control, then check for continuity between

the two terminals after resetting the control. If the circuit is

open, replace the control, then continue with this procedure.

(If the circuit is closed, the high limit is not defective. Re-

connect the two electrical wires.)

2-2 1003

Model OFE/OFG/OEA/OGA-341, 342

2-3. HIGH TEMPERATURE

LIMIT CONTROL

(Gas Units) (Continued)

Replacement To avoid electrical shock or property damage, move the

power switch to OFF and disconnect main circuit

breaker, or unplug cord at wall receptacle.

1. If the tube is broken or cracked, the control opens, shutting

off electrical power to the heat circuit. The control cannot be

reset, and it continuously clicks when pushed.

2. Drain the shortening from the frypot and discard. A substance

from the tube could contaminate the shortening.

Figure 2-6 3. Remove the control panel.

4. Using a 5/16” wrench, loosen small inside screw nut on

capillary tube. Figure 2-6.

5. Using a 11/16” crows-foot, remove the larger nut securing the

capillary tube to the pot. Figure 2-7.

6. Remove the two screws securing the high limit guard and

Figure 2-7 remove guard. Figure 2-8

7. Straighten the capillary tube inside the frypot, and pull the

capillary tube through the frypot, from behind the control

panel. Remove the defective high limit from the control panel

area.

8. Replace new high limit in reverse order.

Figure 2-8

To avoid electrical shock or other injury, run the

capillary line under and away from all electrical power

wires and terminals. The tube must never be in such a

position where it could accidentally touch the electrical

power terminals.

1003 2-3

Model OFE/OFG/OEA/OGA-341, 342

2-4. COMPLETE CONTROL Should the control board become inoperative, follow these

PANEL REPLACEMENT 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 two screws securing the control panel and lift out.

Figure 2-9 Figure 2-9.

3. Unplug the wire connectors going to the control panel.

Figure 2-10.

4. Remove transformer(s) from control panel. They must be

installed on the replacement panels.

5. 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

Figure 2-10 connected properly, damage to the board could result.

2-5. 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 wires from the switch. With test instrument

Figure 2-11 check across the terminals of the switch with switch in the on

position, and the circuit should be closed. In the off position,

the circuit should be open. If the switch checks defective,

replace by continuing with this procedure. Figure 2-11.

2-4 504

Model OFE/OFG/OEA/OGA-341, 342

2-5. POWER SWITCH (Continued)

4. With control panel removed, and the wires off the switch, push

in on tabs on the switch to remove from panel. Figure 2-12.

5. Replace with new switch, and reconnect wires to switch.

6. Replace the control panel.

Figure 2-12

2-6. TEMPERATURE PROBE The temperature probe relays the actual shortening temperature

REPLACEMENT (Gas) to the control board. If it becomes disabled, “E06” shows in the

display. Also, if the shortening temperature is out of calibration

morethan10°F or C°, the probe should be replaced. An Ohm check

can be performed also. See chart below.

1. Remove electrical power supplied to the fryer.

Figure 2-13

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. Drain the shortening from the frypot.

3. Remove the control panel and heat shield from control area.

Figure 2-13.

4. Using a ½ inch wrench, remove the nut on the compression

Figure 2-14 fitting. Figure 2-14.

806 2-5

Model OFE/OFG/OEA/OGA-341, 342

2-6. TEMPERATURE PROBE 5. Remove the probe from the frypot, and disconnect wire

REPLACEMENT (GAS) connector from the control panel. Figure 2-15.

(Continued)

6. Place the nut and new ferrule on the new probe and insert the

probe into the compression fitting until it extends one (1) inch

(2.54cm) into the frypot. Figure 2-16.

7. Tighten hand tight and then a half turn with wrench.

Figure 2-15

Excess force will damage probe.

8. Connect new probe to PC board and replace control panel.

9. Replace shortening, and turn power on to check out fryer.

Figure 2-16

2-7. TEMPERATURE PROBE The temperature probe relays the actual shortening temperature

REPLACEMENT (Gas) to the control board. If it becomes disabled, “E06” shows in the

REPLACEMENT display. Also, if the shortening temperature is out of calibration

(ELECTRIC) more than 10°F or C°, the probe should be replaced. An Ohm check

can also be performed. See chart on page 2-5.

1. Remove electrical power supplied to the 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. Drain the shortening from the frypot.

Figure 2-17 3. Remove screws securing rear cover of fryer, and remove rear

cover. Figure 2-17.

2-6 1209

Model OFE/OFG/OEA/OGA-341, 342

2-7. TEMPERATURE PROBE 4. Using a ½ inch wrench, remove the nut on the compression

REPLACEMENT fitting. Figure 2-18.

(ELECTRIC) (Continued)

5. Remove the probe from the frypot, and disconnect probe.

6. Place the nut and new ferrule on the new probe and insert the

probe into the compression fitting until it extends one (1) inch

(2.54cm) into the frypot.

7. Reconnect new probe onto wires, replace rear cover, and fryer

Figure 2-18 is now ready for use.

2-8. FLAME SENSOR/ The Henny Penny open fryer (gas) has electronic spark ignition

PILOT / IGNITOR that lights a standing pilot. The gap between the spark electrode

ASSEMBLY (GAS) and the pilot hood should be1/8 of an inch (3.18 mm). The

flame sensor recognizes the pilot flame and allows gas to continue

to the pilot. The flame sensor must send a minimum of two (2)

micro amps to the ignition module. The pilot flame should be split

in two by the flame sensor, causing the flame sensor to be bright

redincolor.

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.

TO AVOID PERSONAL INJURY OR PROPERTY

DAMAGE, BEFORE STARTING THIS

PROCEDURE, MOVE THE MAIN POWER SWITCH

TO THE OFF POSITION. DISCONNECT THE MAIN

CIRCUIT BREAKERS AT THE CIRCUIT BREAKER

BOX OR UNPLUG SERVICE CORD FROM WALL

RECEPTACLE. TURN OFF THE MAIN GAS

SUPPLY TO THE FRYER AND DISCONNECT AND

CAP THE MAIN SUPPLY LINE TO FRYER, OR

POSSIBLE EXPLOSION COULD RESULT.

1003 2-7

Model OFE/OFG/OEA/OGA-341, 342

2-8. FLAME SENSOR/

PILOT / IGNITOR

ASSEMBLY (Gas)

(Continued)

2. Remove the control panel and heat shield from control area.

Figure 2-19.

Figure 2-19

3. Disconnect the flame sense wire from ignition module.

Figure 2-20.

Figure 2-20

4. Using a 7/16” wrench, loosen the nut on the pilot tube and pull

tube from assembly. Figure 2-21.

Figure 2-21

5. Remove the two screws securing the assembly and pull

assembly from unit. Figure 2-22.

6. Now the flame sensor or or pilot assembly can be removed

from bracket.

Figure 2-22

2-8 1003

Model OFE/OFG/OEA/OGA-341, 342

2-9. IGNITION MODULE During normal operation, the ignition modules send 24 volts to the

ignitors and gas valve. If a module does not sense a pilot flame,

the module starts the ignition process again. But, if a pilot light

goes out for longer that 10 seconds, or it goes out 3 times within 10

seconds, the module keeps the 24 volts from reaching the gas

valve. The burners shut down.

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.

Figure 2-23 2. Remove the control panel and heat shield from control area.

Figure 2-23.

3. Using a 3/8 inch socket, remove the two nuts securing the

module. Figure 2-24.

Figure 2-24

4. Label and remove the wires at module. Figure 2-25.

5. Install new module in reverse order.

Figure 2-25

1003 2-9

Model OFE/OFG/OEA/OGA-341, 342

2-10. TRANSFORMER The transformer reduces voltage down (to 24V) to accommodate

REPLACEMENT 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

Figure 2-26

3. Remove the two wire connectors to disconnect transformer

From panel. Figure 2-26.

4. Using a 3/8” nut-driver, remove the two nuts securing the

transformer to the panel and remove transformer. Figure 2-27.

5. Install the new transformer in reverse order.

Figure 2-27

2-11. CONTROL & I/O 1. Remove electrical power supplied to the unit.

BOARDS

REPLACEMENT

I/O Power Supply Control

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.

3. Using a 5/16” nut-driver or wrench, remove the 4 nuts securing

the PC shield and remove shield. Figure 2-28.

4. Disconnect the wire assemblies from the appropriate board.

Figure 2-28

5. Using a 5/16” nut-driver or wrench, remove the 4 nuts securing

the appropriate board to the shroud.

6. Install the new board in reverse order.

2-10 1003

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