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
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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.)
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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.
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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.
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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.
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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.
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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
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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
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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.
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