Model LVG-102, 103, 104 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 per the Installation Section of the operator’s manual. Before troubleshooting, always recheck the operation pro- cedures per Section 3 of the operator’s manual.
Model LVG-102, 103, 104 1-3. TROUBLESHOOTING To isolate a malfunction, proceed as follows: 1. Clearly define the problem (or symptom) and when it occurs. Locate the problem in the Troubleshooting table. Review all possible causes. Then, one-at-a-time work through the list of corrections until the problem is solved. Refer to the maintenance procedures in the Maintenance Section to safely and properly make the checkout and repair needed.
Page 7
Model LVG-102, 103, 104 Problem Cause Correction POWER SECTION • • With power switch in Open circuit Check to see that unit is plugged in ON position, the fryer • is completely inoperative Check the breaker or fuse (NO POWER) at supply box •...
Page 8
Model LVG-102, 103, 104 Problem Cause Correction HEATING OF SHORTENING SECTION (Continued) Oil will not heat • • Drain valve open Close drain valve (Continued) • • Faulty temperature probe Replace temperature probe • • Faulty gas valve Check gas valve too slow •...
Page 9
Model LVG-102, 103, 104 Problem Cause Correction OIL LEVEL SECTION Oil foaming or boiling over vat • Water in oil • At end of a Cook Cycle, drain and clean vat; add fresh oil • Improper or bad oil • Use recommended oil • Improper filtering • Refer to the procedure...
Page 10
Model LVG-102, 103, 104 Problem Cause Correction FILTER MOTOR SECTION • Filter line connections • Tighten all filter line connections Filter motor runs but loose pumps oil slowly • Drain pan o-rings damaged or • Install new o-rings missing • Filter paper or pad clogged • Change filter paper or pad •...
Page 11
Model LVG-102, 103, 104 1-4. ERROR CODES In the event of a control system failure, the digital display shows an error message. The message codes are shown in the DISPLAY column below. A constant tone is heard when an er- ror code is displayed, and to silence this tone, press any button.
Page 12
Model LVG-102, 103, 104 1-4. ERROR CODES (Continued) DISPLAY CAUSE CORRECTION Pressure Switch failure/ hose loose Press power button to vat off and back on again, if E-20-B persists, have pressure switch checked; Draft Fan failure/ low voltage/ Flue should be open circuit if no air pressure; make sure “E-20-B”...
Page 13
Model LVG-102, 103, 104 1-4. ERROR CODES (Continued) DISPLAY CAUSE CORRECTION AIF PC board not communicating Turn switch to OFF, then back to ON; if “E-60” with control PC board persists, check 1.5 amp fuse on AIF PC board on International units only;...
Model LVG-102, 103, 104 SECTION 2. INFO, FILTER & TEMP BUTTON STATS 2-1. INFO BUTTON STATS Recovery Information for each Vat/OQM Information 1. Press and release and REC shows in left display and the recovery time that oil temperature went from 250°F (121°C) to 300°F (149°C) shows in the right display.
Model LVG-102, 103, 104 2-4. HP INFO MODE Cook Cycles Remaining before Filtering Press and release both at the same time to enter HP Info Mode. You can view the following option in HP Info Mode: 1. E-Log 2. Last Load 3.
Model LVG-102, 103, 104 SECTION 3. LEVEL 1 PROGRAMMING Level 1 contains the following: • Modify product settings • Set the AIF clock for products • Perform the Deep Clean procedure • Fryer Setup Mode 1. Press and hold buttons until LEVEL - 1 3-1.
Page 17
Model LVG-102, 103, 104 3-1. MODIFYING PRODUCT 8. Press and release button and “TEMP” shows in the SETTINGS (Continued) display, along with the preset temperature on the right side of the display. Press the product buttons to change the temperature. The temperature range is 190°F (88°C) to 380°F (193°C).
Model LVG-102, 103, 104 3-2. AIF CLOCK This feature allows controls to be set for periods of the day that block the automatic “Filter Now” prompts. For example, the controls could be set not interrupt with “Filter Now” prompts during the lunch rush, and during the supper rush. But, if filter- ing is desired during this time, press and hold a button to access the filter menu.
Model LVG-102, 103, 104 3-2. AIF CLOCK In 12-hour clock mode, there are three items on each line: the start (Continued) time “XX:XX”, the A or P (am/pm) setting, and the “XX” duration. Use the and buttons to set these items, which flashes when the item is selected. To set a new start time setting, use the product buttons, to enter the new value. Press the button to step over to the AM/PM setting. The A or P can be toggled by pressing the ‘0’...
Model LVG-102, 103, 104 3-4. FRYER SETUP This mode has the same settings as seen upon initial start-up of the fryer. 1. Press and hold buttons until LEVEL - 1 shows in the display, followed by ENTER CODE. 2. Enter code 1, 2, 3, 4 (first 4 product buttons). “PRODUCT” and “SELECTN”...
Model LVG-102, 103, 104 SECTION 4. LEVEL 2 PROGRAMMING Used to access the following: • Advanced changes to product settings • Error code log • Password programming • Alert Tone/Volume • No. of cook cycles before filter is suggested • Automatic filter time 4-1. ADVANCED PRODUCT 1. Press and hold buttons until LEVEL - 2 SETTINGS shows in the display, followed by ENTER CODE.
Model LVG-102, 103, 104 4-1. ADVANCED PRODUCT 8. Press button until “FULL HT” shows in display along SETTINGS (Continued) with full heat value in seconds, which means heat is on as soon as a timer button is pressed, for a programmed length of time.
Model LVG-102, 103, 104 4-3. PASSWORDS The 4-digit passwords can be changed for access to Set-Up, Usage, Level 1, Level 2, & Get Mgr.) 1. Press and hold buttons until LEVEL - 2 shows in the display, followed by ENTER CODE. 2. Enter code 1, 2, 3, 4 (first 4 product buttons). “PROD”...
Model LVG-102, 103, 104 4-5. FILTER AFTER The number of cook cycles between filtering the oil can easily be programmed for all products. 1. Press and hold buttons until LEVEL - 2 shows in the display, followed by ENTER CODE. 2. Enter code 1, 2, 3, 4 (first 4 product buttons). “PROD” and “COMP” show in the displays. 3. Press button 4 times and “FILR AFTR”...
Model LVG-102, 103, 104 SECTION 5. LEVEL 3 PROGRAMMING Used to access the following: • TECH RESETS-Reset Recovery Faults/Passwords to defaults • SPCL PROG-Program filter control parameters and other items • CLOCK SET-Set the time-of-day clock / calendar • DATA COMM-Data Communications, LonWorks, MMC, etc. • HEAT CTRL-Program heat algorithm control parameters • TECH MODE-Control of outputs, display & button tests, etc. •...
Model LVG-102, 103, 104 5-2. SPECIAL PROGRAMMING The Special Program Mode is used to set more detailed program- ming, such as: SP-1 • ZONE - USA or Non-USA (default setpoints) SP-2 • System Initialization SP-3 • 2nd Language: English, French, Candian- French, German, Spanish, Portuguese, Swedish, Russian, &...
Page 28
Not all Special Program Mode functions are discussed in this section. To ensure proper operation of fryer, please consult Henny Penny Corp. before changing any of these settings. For more information on these functions, contact the Service Department at 1-800-417- 8405, or 1-937-456-8405.
Page 29
Model LVG-102, 103, 104 5-2. SPECIAL PROGRAMMING 2nd Language (SP-3) (Continued) 5. Press button and “SP-3 2ND LANGUAGE” scrolls in left display. Use buttons to set to: ENGLISH; FRANCAIS; CAN FREN; ESPANOL; PORTUG; DEUTSHE; SVENSKA; РУССКИИ or -NONE-. By setting a second language in the controls, 2 languages can now be easlily chosen by pressing button twice during normal operation.
Page 30
Model LVG-102, 103, 104 5-2. SPECIAL PROGRAMMING Decal Layout (SP-8) (Continued) 9. Press button and “SP-8 DECAL LAYOUT?” scrolls in the left display. The words in the right displays should match the arrow type above the buttons. EX: If the control decal shows the right displays should show DOWN-UP If the displays show UP-DOWN, use the...
Data communications and heat controls settings are shown in Level 3 Program Mode. But, to ensure proper operation of fryer, please consult Henny Penny Corp. before changing any of these settings. For more information on these functions, contact the Service Department at 1-800-417- 8405, or 1-937-456-8405.
Model LVG-102, 103, 104 5-5. TECH MODE The TECH Mode has self-diagnostic information, which can be used by certified technicians for troubleshooting purposes, such • Software • Fryer Type (Gas or Elec.) • Push Button Test • All On Display Test • Display Segments Test • Display Digits Test •...
Page 33
Model LVG-102, 103, 104 5-5. TECH MODE (Continued) 1. To enter the TECH Mode, press and hold buttons for 5 seconds, until display shows ”LEVEL 3” followed by “ENTER CODE”. 2. Enter code 1, 1, 2, 2, 1, 1, 2, 2 (first 2 product buttons). “A. TECH” & “RESETS” show in the displays. 3.
Page 34
Model LVG-102, 103, 104 5-5. TECH MODE (Continued) T-8 - DECIMAL PTS TEST Press any of the product buttons numerous times to view each LED across the control panel. T-17 - DIGITAL INPUTS - HDF H = HIGH LIMIT - If “H” is present, the high limit is good. If “-”...
Page 35
Model LVG-102, 103, 104 5-5. TECH MODE (Continued) Press button and “INP E_P_” and “JL_R_DF_” shows in the displays. AIF Board Inputs: E = Stop button E* = E-Stop pressed. P = Drain Pan M* = drain pan is missing. JL = JIB J* = JIB oil level is low.
Page 36
Model LVG-102, 103, 104 5-5. TECH MODE (Continued) T-20 - PUMPS & VALVES √ button and “VALVES” “DcRcAc” shows in displays. Press Press to open and close the drain valves. Press to open and close the return valves. Press to open and close the add valves. “DcRcAc”...
Model LVG-102, 103, 104 5-6. STATS MODE This mode allows a technician to view advanced information on the operation of the fryer and controls. 1. To enter the TECH Mode, press and hold buttons for 5 seconds, until display shows ”LEVEL 3”, followed by “ENTER CODE”.
Model LVG-102, 103, 104 SECTION 6. INFORMATION MODE 6-1. INFO MODE This mode gathers and stores historic information on the fryer and operator’s performance. Press and hold for 3 seconds, unitil *INFO* *MODE*” shows on the displays. Press buttons to access the steps and press √ button to view the statistics within each step.
Page 39
Model LVG-102, 103, 104 6-1. INFO MODE LAST LOAD (Continued) Press √ button to select Last Load (ex: -P1- = Product 1;”L1” = left, 1st product) and press buttons to view the following: FUNCTION DISPLAY EX: Product (Last product cooked) PRODUCT -P1- L1 Time of day last Cook Cycle was started STARTED 10.25A SEP-08...
Model LVG-102, 103, 104 SECTION 7. MAINTENANCE 7-1. PREVENTIVE To ensure a long life of fryers and their components, regular MAINTENANCE maintenance should be performed. Refer to the chart below. Frequency Action Daily Mainteance Filter (See Maintenance Filtering Instructions Section in Operator’s Manual or PM Guide) Daily Change Filter Pad (See Changing...
Model LVG-102, 103, 104 7-3. CONTROL PANEL & Should the control panel become inoperative, or the menu card MENU CARD needs changed, follow these instructions: REPLACEMENT 1. Remove electrical power supplied to the vat. To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.
Model LVG-102, 103, 104 7-4. HIGH TEMPERATURE This is a safety, manual reset control, which senses the temper- LIMIT CONTROL ature of the oil. If the oil temperature exceeds 425°F (218°C), this switch opens and shuts off the heat to the vat and “E-10” shows in the display.
Page 43
Model LVG-102, 103, 104 7-4. HIGH TEMPERATURE Replacement: LIMIT CONTROL If the tube is broken or cracked, the control opens, shutting off (Continued) electrical power. The control cannot be reset. 1. Drain the oil from the vat, by pressing and holding a button until *FILTER* *MENU* shows in the display.
Model LVG-102, 103, 104 7-4. HIGH TEMPERATURE 7. Using an 11/16” crows-foot, remove large high limit fitting LIMIT CONTROL in vat wall, and pull high limit from inside the control area. (Continued) 8. Install new high limit in reverse order and restore power to unit. 9. Fill vat by pressing and holding a button until *FILTER* *MENU* shows in the display.
Model LVG-102, 103, 104 7-6. PROBE REPLACEMENT The temperature probe is the center probe inside the vat (see photo at left) and it relays the actual oil temperature to the con- trol. If it becomes disabled, “E-6A or B” shows in the display. The oil level probes (left &...
Page 46
Model LVG-102, 103, 104 7-6. TEMPERATURE PROBE REPLACEMENT (Continued) To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle. 3. Using a 3/8” socket, remove 2 screws securing the burner jet bracket and remove bracket. 4.
Page 47
Model LVG-102, 103, 104 7-6. TEMPERATURE PROBE 7. Place nut and new ferrule on the new temperature probe REPLACEMENT and insert temperature probe into the compression fitting. (Continued) See drawing below. 8. Using the probe gauge in the kit, follow the instructions on drawing below. 9.
Model LVG-102, 103, 104 7-6. TEMPERATURE PROBE 8. Connect new temperature probe to connector and fasten REPLACEMENT connector onto control panel. (Continued) 9. Replace control panel and reconnect power to vat. 10. Fill vat by pressing and holding a button until *FILTER* *MENU* shows in the display.
Page 49
Model LVG-102, 103, 104 7-7. SOLENOID VALVES (Continued) Replacement: 1. Using a 1 in. wrench, loosen the front and rear fittings to solenoid. 2. Remove the conduit from the fryer and pull the solenoid assembly from the fryer. 3. Remove the conduit from the solenoid. Feb. 2011 7-10...
Model LVG-102, 103, 104 7-7. SOLENOID VALVES 4. Remove elbow and fittings from solenoid stem assembly, (Continued) and attach them to new solenoid, using pipe sealent on the threads. 5. Reattach the conduit to new solenoid, threading the wires through the conduit. 6. Reattach the solenoid assembly to the fryer. 7.
Model LVG-102, 103, 104 7-9. FILTER PUMP & MOTOR The 2 most common causes for a fryer not to pump oil are that the pump is clogged, or the thermal overload switch has been tripped on the motor. The pump and motor is located on the rear of the fryer.
Page 52
Model LVG-102, 103, 104 7-9. FILTER PUMP & MOTOR (Continued) To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle. Removal: 1. Remove the bottom, rear panel and the right side panel. 2. Using a 5/8” wrench, loosen the front, flexible line fitting, on the pump.
Model LVG-102, 103, 104 7-10. AIF PUMP T his pump keeps the vats filled and is used in the Automatic Intermittent Filter process. 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. Remove the right side panel. 2. Using 1” wrench, loosen both fitting on each side of pump.
Model LVG-102, 103, 104 7-12. TRANSFORMERS These components drop the line voltage to low voltage compo- nents such as, control board, AIF board and gas valves. Checkout: 1. Perform Power Section troubleshooting, paragraph 1-3. To avoid electrical shock or property damage, move power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.
Page 55
Model LVG-102, 103, 104 7-12. TRANSFORMERS Checkout (Continued) (Continued) 11. If control panel still does not display, replace panel with a known good control panel. If problem follows control panel, replace panel per paragraph 7-4. Replacement: AIF Transformer To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.
Model LVG-102, 103, 104 7-13. FILTER MOTOR RELAY This component is located behind the left control panel and regulates voltage to the filter motor. 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.
Page 57
Model LVG-102, 103, 104 7-14. GAS CONTROL VALVES Replacement: (Control) 1. Remove the appropriate side panel and/or open the doors. 2. Label and remove wires from gas valve. 3. Using a 5/8” wrench, loosen the flexible gas line fitting. 4. Using a 1” wrench, loosen the rear fitting and pull assembly from the unit. 5. Remove the nipple from the brass elbow. With the nipple removed, the fitting will clear the gas valve body. 6. Pull fittings from gas valve and attach the fittings to new gas valve, in the same orientation.
Model LVG-102, 103, 104 7-15. BLOWER MOTORS The blower motor assembly creates the draft for the burners. If the blower motor fails, the air switch fails to close, causing an “E-20B” error code in the display. 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.
Model LVG-102, 103, 104 7-16. DRAIN PAN SWITCH This switch closes when the drain pan is pushed properly in place under the fryer. If the drain pan is not properly in place, or the drain switch is faulty, display prompts such as, “CHECK PAN”...
Page 60
Model LVG-102, 103, 104 7-17. FILTER AND JIB LIGHTS 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. Remove control panel. 2. Locate wires to light and cut wires. 3. Using a 13/16”, deep-well socket (see photo at left) remove nut on the back side of panel and pull the light from the frontof the panel.
Model LVG-102, 103, 104 7-18. AIR PRESSURE The vacuum switch senses the flow of air coming from the SWITCHES blower. If the airflow is reduced below a set amount, the switch cuts power to the control valve, which shuts the burners down. 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.
Model LVG-102, 103, 104 7-19. IGNITOR & FLAME The flame sensor should glow a bright red when pilot is lit and SENSOR ASSEMBLY allows gas control valve to open. If it does not sense a flame, it shuts off the gas control valve. Flame Sensor Replacement: 1. Remove control panel. 2. Pull wire from flame sensor. 3. Using a 7/16” wrench, remove nut securing the flame senor and pull the sensor from the unit. 4. Install new flame sensor in reverse order. Ignitor Replacement: TO AVOID INJURY, PROPERTY DAMAGE, OR EXPLOSION, BEFORE STARTING THIS PROCEDURE, DO THE FOLLOWING:...
Model LVG-102, 103, 104 7-20. IGNITION MODULES During normal operation, the ignition modules send 24 volts to the ignitors and gas control 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 15 seconds, or it goes out 3 times within 15 seconds, the module keeps the 24 volts from reaching the gas control valve.
Model LVG-102, 103, 104 7-21. PRESSURE This component controls the AIF filter pump by sensing the TRANSDUCER pressure in the expansion chamber. Voltage range is 0.5 to 4.5 VDC, corresponding to a pressure range of 0 to 30 PSIG A messured pressure below -1.5 PSI or above 32 PSI may indicate a failed transducer, it has become disconnected, or a clogged expansion chamber.
This section lists the replaceable parts of the Henny Penny Model LVG fryer. 8-2. GENUINE PARTS Use only genuine Henny Penny parts in your fryer. Using a part of lesser quality or substitute design may result in damage to the unit or personal injury.
Page 74
Model LVG-102, 103, 104 79314 74302 LH Door Assy RH Door Assy with Label with Holder Model LVG-102 79314 87041 74302 LH Door Assy RH Door Assy RH Door Assy with Label without Holder with Holder Model LVG-103 89897 74301 87041 74302 LH Door Assy...
Page 75
Model LVG-102, 103, 104 Item No. Part No. Description Quantity √ 1 76980 RACK - SPLIT VAT ............ 1/vat √ 1 76982 RACK - FULL VAT ............ 1/vat 77061 GUARD - HIGH LIMIT - LVG ........ 1/vat √ 3 14974 PROBE - LEVEL SENSE - 2.5 in.
Page 81
Model LVG-102, 103, 104 Drain Valve Parts - Fish Vat Item No. Part No. Description Quantity 86122 BRACKET-DR ROD & LEVER SWITCH .... 1/vat 83598 ROD- DRAIN VALVE ............ 1/vat 55142 COUPLING-DRAIN VALVE .......... 1/vat √ 4 17255 PIN -COTTER .............. 2/vat 74626 STOP-PIVOT DRAIN HANDLE ........ 1/vat MS01-307...
Page 82
Model LVG-102, 103, 104 Fry Cap Item No. Part No. Description Quantity 03641 ACCESSORY-FRY CAP - LVG-102 ....... 03642 ACCESSORY-FRY CAP - LVG-103 ....... 1 03643 ACCESSORY-FRY CAP - LVG-104 ....... Sept. 2009 8-18...
Page 83
Model LVG-102, 103, 104 Item No. Part No. Description Quantity 78814-001 ASSY - SUCTION LINE ..........77523-002 TUBE-SUCTION 18 IN L DORMONT ....2 FP01-206 CONNECTOR-3/8 NPT FEM 45 FLARE ....77259 BRACKET-PLUG AND PLAY ......... 77248 ADAPTER-TUBE END ..........5 FP01-204 NIPPLE-3/8 NPT X 6IN L BLACK ......Feb.
Page 84
Model LVG-102, 103, 104 Item No. Part No. Description Quantity 79327 FLEXIBLE GAS LINE W/SHUT-OFF VALVE - 2 -WELL-36 IN 77668-002 FLEXIBLE GAS LINE W/SHUT-OFF VALVE - 3 -WELL-72 IN Sep. 2009 8-20...
Page 85
Model LVG-102, 103, 104 Filter Motor and Pump Item No. Part No. Description Quantity √ 1 67583 MOTOR, 1/2 HP - 50/60 Hz ..........√ 2 17476 SEAL KIT ................ 17437 PUMP ASSEMBLY ............√ 4 SC01-132 SCREW, Pump Cover ..........√ 5 17451 COVER, Pump ............√ 6 17447 ROTOR, Pump ............
Page 86
Model LVG-102, 103, 104 Piping Assembly - Units Without RTI Item No. Part No. Description Quantity 85571-001 ASSY-Piping, Manifold to JIB Pump - LVG-103 & 104 .... 85571-002 ASSY-Piping, Manifold to JIB Pump - LVG-102 ......FP01-118 ELBOW-5/8 TUBE-1/2 NPT FEMALE ........ FP01-090 ELBOW-1/2NPT X 90 FEMALE BI ........
Page 88
Model LVG-102, 103, 104 APPENDIX A. WIRING DIAGRAMS AND SCHEMATICS A-1. WIRING DIAGRAMS AND APPENDIX A contains the wiring diagrams and schematics to SCHEMATICS support the LVG-100 series fryers.