SERVICE MANUAL ELECTRIC RESTAURANT RANGES E36LC SERIES ML-136624 E36SLC MODEL SHOWN - NOTICE - This Manual is prepared for the use of trained Vulcan Service Technicians and should not be used by those not properly qualified. If you have attended a Vulcan Service School for this product, you may be qualified to perform all the procedures described in this manual. This manual is not intended to be all encompassing. If you have not attended a Vulcan Service School for this product, you should read, in its entirety, the repair procedure you wish to perform to determine if you have the necessary tools, instruments and skills required to perform the procedure. Procedures for which you do not have the necessary tools, instruments and skills should be performed by a trained Vulcan Service Technician. Reproduction or other use of this Manual, without the express written consent of Vulcan, is prohibited. For additional information on Vulcan-Hart Company or to locate an authorized parts and service provider in your area, visit our website at www.vulcanhart.com. A product of VULCAN-HART Louisville, KY 40201-0696 Form 25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES TABLE OF CONTENTS GENERAL... 3 Introduction... 3 Installation... 3 Operation... 3 Cleaning... 3 Tools... 3 Specifications... 3 REMOVAL AND REPLACEMENT OF PARTS... 4 Covers and Panels... 4 Range Tops... 4 Blower Wheel... 5 Blower Motor... 6 Door... 6 Door Mechanism Components... 7 Door Switch... 8 Oven Heating Element... 8 French Plate... 9 Hot Top... 10 Griddle Heating Element... 11 Oven Thermostat... 12 Griddle and Hot Top Thermostats... 13 Infinite Switch... 14 Rocker Switch... 14 Indicator Lights... 15 Motor Contactor (480V Only)... 15 SERVICE PROCEDURES AND ADJUSTMENTS... 16 Oven Thermostat Calibration... 16 Griddle Thermostat Calibration... 17 Hot Top Thermostat Calibration... 17 3 Heat Switch Test (480V)... 18 Infinite Switch Test (208, 240V)... 18 Door Adjustment... 18 Heating Element Test... 19 ELECTRICAL OPERATION... 20 Component Function... 20 Oven Sequence of Operation... 21 Wiring Diagrams... 22 TROUBLESHOOTING... 28 VULCAN 2008 F25297 (July 2008) Page 2 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - GENERAL GENERAL INTRODUCTION This manual is for the Vulcan Restaurant Series Electric Range equipped with convection oven. Procedures in this manual will apply to all models unless specified. Pictures and illustrations will be of model E36SLC unless otherwise noted. All of the information, illustrations and specifications contained in this manual are based on the latest product information available at the time of printing. INSTALLATION Refer to the Instruction Manual for detailed installation instructions. OPERATION Refer to the Instruction Manual for specific operating instructions. CLEANING Refer to the Instruction Manual for specific cleaning instructions. TOOLS Standard Standard set of hand tools. VOM with A.C. current tester (Any quality VOM with a sensitivity of at least 20,000 ohms per volt can be used). Special Temperature tester (thermocouple type) with surface mount probe. Clamp on amp meter. Wheel puller, for blower wheel removal. Sealant, for thermostat calibration screw. SPECIFICATIONS AVAILABLE VOLTAGES - 208 OR 240 VOLT - 1 OR 3-PHASE, 480 VOLT - 3-PHASE Model No. Nominal AMPS Per Line Wire 3-Phase 208V 240V 480V 1-Phase X Y Z X Y Z X Y Z 208V 240V 480V E36LC 38.3 50.0 54.9 33.2 43.3 47.6 16.5 21.6 23.7 82.6 71.6 N/A E36SLC 38.3 47.5 52.4 33.2 41.1 45.4 16.5 20.8 22.6 79.7 69.1 N/A E36FLC 38.3 45.0 49.9 33.2 39.0 43.3 16.5 19.7 21.5 76.9 66.6 N/A E36XLC 35.8 42.5 49.9 31.0 36.8 43.3 N/A N/A N/A 74.0 64.1 N/A Page 3 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS REMOVAL AND REPLACEMENT OF PARTS COVERS AND PANELS RANGE TOPS Control Panel 1. Pull out or remove crumb tray. 2. Remove screws in top corners of control panel. NOTE: Control panel is hinged and will open down. 1. Remove screws securing backsplash to frame. 2. Lift off backsplash. 3. Reverse procedure to install. Kick Panel 1. Open kick panel by lifting, pulling out and rotating down. 2. Apply outward pressure on one of the ends to remove. 3. Reverse procedure to install. 3. Open control panel as outlined under COVERS AND PANELS. 4. Remove retaining screw securing range top mounting bracket. F25297 (July 2008) Page 4 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS 5. Lift the range top being removed. 6. Disconnect the electrical connections. 7. Reverse procedure to install. 8. Check range for proper operation. BLOWER WHEEL 4. Pull blower into oven cavity. 5. Remove two set scews from blower wheel hub. 1. Remove oven racks. 2. Remove thermostat bulb from heating element shroud; remove nuts and shroud. 6. Remove blower wheel. NOTE: A wheel puller may be necessary to remove blower wheel from motor shaft. 7. Reverse procedure to install. 8. Check range for proper operation. 3. Remove four nuts securing blower motor to mounting bolts. Page 5 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS BLOWER MOTOR 1. Remove blower wheel as outlined under BLOWER WHEEL. 2. Remove nuts securing mounting plate to motor. 3. Loosen nuts while holding "J" hooks from rotating. NOTE: One nut will be right hand threaded and the other will be left hand threaded. 3. Remove mounting plate from motor. 4. Disconnect lead wires from motor. 5. Reverse procedure to install. 6. Check range for proper operation. DOOR 4. Rotate turnbuckle to relieve most of the spring tension. 5. Pry up left bell crank and remove oven door hook. Removal 1. Remove kick panel as outlined under COVERS AND PANELS. 2. Pinch a rag in the door to prevent the door from falling open during procedure. F25297 (July 2008) Page 6 of 28 6. Repeat with right bell crank.
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS 7. Remove inside door bolts. DOOR MECHANISM COMPONENTS 8. Loosen outside door screws, then slide to inside of door slot to disengage pins from door mounts. 9. Open door partly and remove. Installation 1. Reverse removal procedure to install. NOTE: Make sure that pins inside door engage holes in door mounts. NOTE: Red oven door hook goes on the right side and blue hook on the left. 2. Rotate turnbuckle to tension springs until door closes on its own when held open 5 inches. Door should bounce once or not at all. 3. Check range for proper operation. 1. Remove kick panel as outlined under COVERS AND PANELS. 2. Pinch a rag in the door to prevent the door from falling open during procedure. 3. Loosen nuts while holding "J" hooks from rotating. NOTE: One nut will be right hand threaded and the other will be left hand threaded. 4. Rotate turnbuckle to relieve most of the spring tension. 5. Remove springs, turnbuckle assembly, and door hooks. 6. Remove cotter pins from bell crank pins (behind bracket). Page 7 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS 7. Remove bell crank pins and bell cranks. 8. Reverse procedure to install. 9. Check range for proper operation. NOTE: Tension springs until door closes on its own when held open 5 inches. Door should bounce once or not at all. DOOR SWITCH 4. Disconnect electrical wiring from switch. 5. Reverse procedure to install. 6. Check range for proper operation. OVEN HEATING ELEMENT 1. Open kick panel as outlined under COVERS AND PANELS. 2. Remove door switch bracket mounting screws. 1. Remove oven racks. 2. Remove thermostat bulb from heating element shroud. 3. Remove heating element shroud. 4. Remove screws mounting heating element brackets to oven back wall. 3. Remove nuts securing door switch to door switch bracket. F25297 (July 2008) Page 8 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS FRENCH PLATE 1. Remove french plates as outlined under RANGE TOPS. 2. Remove bolts holding mounting bracket to the french plate assemblies. 5. Remove screw securing heating element and pull element out to expose lead wire connections. 6. Disconnect the lead wires. 7. Reverse procedure to install. 8. Check range for proper operation. 3. Remove electrical connections noting their location. 4. Remove the nut, spring washer, and locking bracket. NOTE: Support the french plate from underneath. Page 9 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS 5. Remove french plate. 6. Reverse procedure to install. 7. Check range for proper operation. HOT TOP 5. Bend hooks in slightly, then remove electrical connections. 1. Remove hot top as outlined under RANGE TOPS. 2. Remove nuts holding thermostat bulb clamp to the plate assembly. 6. Remove hot top. 7. Reverse procedure to install. 8. Check range for proper operation. 3. Remove thermostat bulb clamp and thermostat bulb from hot top. 4. Remove inside screws from electrical connections. F25297 (July 2008) Page 10 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS GRIDDLE HEATING ELEMENT NOTE: 12" griddle shown. 1. Remove griddle as outlined under RANGE TOPS. 2. Remove nuts and washers to disconnect element wiring. 6. Remove nuts securing griddle element holding clamps. 3. Remove nuts securing griddle base cover. 7. Remove holding clamps. 8. Remove griddle element. 9. Reverse procedure to install. 10. Check range for proper operation. 4. Remove griddle base cover. 5. Loosen screws to remove thermostat bulb and clamp. Page 11 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS OVEN THERMOSTAT 1. Remove thermostat knob. 2. Remove thermostat mounting screws. 6. Remove left range top as outlined under RANGE TOPS. 7. Pull capillary tube and thermostat bulb through roof of oven cavity. 3. Open the control panel as outlined under COVERS AND PANELS. 4. Disconnect the lead wires from the thermostat noting their locations. 8. Remove thermostat. NOTE: Do not kink capillary tube. 9. Reverse procedure to install. NOTE: Route capillary tube so it does not contact any electrical component. 10. Perform OVEN THERMOSTAT CALIBRATION as outlined under SERVICE PROCEDURES AND ADJUSTMENTS. 11. Check range for proper operation. 5. Remove thermostat bulb from heating element shroud. F25297 (July 2008) Page 12 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS GRIDDLE AND HOT TOP THERMOSTATS 1. Remove thermostat knob. 2. Remove thermostat mounting screws. 3. Open the control panel as outlined under COVERS AND PANELS. 4. Disconnect the lead wires from the thermostat noting their locations. HOT TOP SHOWN NOTE: See GRIDDLE HEATING ELEMENT to access griddle thermostat bulb. 7. Remove thermostat bulb from clamp. 8. Remove thermostat. NOTE: Do not kink capillary tube. 9. Reverse procedure to install. NOTE: Route capillary tube so it does not contact any electrical component. 10. Perform HOT TOP or GRIDDLE THERMOSTAT CALIBRATION as outlined under SERVICE PROCEDURES AND ADJUSTMENTS. 11. Check range for proper operation. 5. Access underside of range top as outlined under RANGE TOPS. 6. Remove fasteners from thermostat bulb clamp. Page 13 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS INFINITE SWITCH ROCKER SWITCH 1. Pull off infinite switch knob. 2. Remove washer nut from applicable infinite switch stem. 1. Open control panel as outlined under COVERS AND PANELS. 2. Disconnect rocker switch electrical connections noting their locations. 3. Open control panel as outlined under COVERS AND PANELS. 4. Remove infinite switch wire connections from switch being replaced. Note wire locations. 3. Squeeze in on the tabs at the ends of the rocker switch and push through the control panel. 4. Reverse procedure to install. 5. Check range for proper operation. 5. Remove infinite switch. 6. Reverse procedure to install. 7. Check range for proper operation. F25297 (July 2008) Page 14 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - REMOVAL AND REPLACEMENT OF PARTS INDICATOR LIGHTS MOTOR CONTACTOR (480V ONLY) 1. Open control panel as outlined under COVERS AND PANELS. 2. Disconnect indicator light electrical connections noting their locations. 1. Remove contactor box cover. 2. Disconnect all electrical connections to the contactor noting their locations. 3. Loosen contactor screws. 3. Squeeze in on the tabs at the ends of the indicator light and push through the control panel. 4. Reverse procedure to install. 5. Check range for proper operation. 4. Lift and remove contactor. 5. Reverse procedure to install. 6. Check range for proper operation. Page 15 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - SERVICE PROCEDURES AND ADJUSTMENTS SERVICE PROCEDURES AND ADJUSTMENTS Certain procedures in this section require electrical test or measurements while power is applied to the machine. Exercise extreme caution at all times. If test points are not easily accessible, disconnect power and follow lockout / tagout procedures, attach test equipment and reapply power to test. OVEN THERMOSTAT CALIBRATION 1. Place a temperature tester probe in the geometric center of the oven. 2. Set the thermostat to 350 F. 3. Allow the thermostat to cycle three times. 4. Note the tester reading when the oven indicator light turns ON and OFF. NOTE: If the difference between the ON and OFF temperature is greater than 25 F, replace the thermostat. 5. Add these two temperatures together, then divide the sum by 2 to obtain an average temperature. A. If the average temperature is within 10 F of the set temperature, the thermostat is calibrated. B. If the average temperature is not within 10 F of the set temperature: 1) Remove thermostat knob. 2) Insert a flathead screwdriver into thermostat dial stem until it reaches the calibration screw. 3) Turn adjustment screw CW to increase and CCW to decrease temperature. NOTE: A 1/4 turn equals 35 F change. 6. Replace knob and repeat steps 3 to 5 until average temperature is within 10 F of set temperature. 7. Reseal adjustment screw to prevent movement. 8. If thermostat cannot be calibrated, replace thermostat as outlined under OVEN THERMOSTAT in REMOVAL AND REPLACEMENT OF PARTS. F25297 (July 2008) Page 16 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - SERVICE PROCEDURES AND ADJUSTMENTS GRIDDLE THERMOSTAT CALIBRATION 1. Clean the temperature test site, then place temperature tester surface mount probe there. See table for proper testing locations according to griddle size. NOTE: This procedure will need to be performed for each testing location on the 24" and 36" griddles. Griddle Size Distance(s) From Left Edge of Griddle 12" 6" 24" 6", 18" 36" 6", 18", 30" 1. All readings taken 12" from front of griddle. 2. Set the thermostat to a temperature above 300 F. 3. Allow the thermostat to cycle three times. 4. Note the tester reading when the indicator light turns ON and OFF. NOTE: If the difference between the ON and OFF temperatures is greater than 25 F, replace the thermostat. 5. Add these two temperatures together, then divide the sum by 2 to obtain an average temperature. A. If the average temperature is within 10 F of the set temperature, the thermostat is calibrated. B. If the average temperature is not within 10 F of the set temperature: 1) Remove thermostat knob. 2) Insert a flathead screwdriver into thermostat dial stem until it reaches the calibration screw. 3) Turn adjustment screw CW to increase and CCW to decrease temperature. NOTE: A 1/4 turn equals 35 F change. 6. Replace knob and repeat steps 3 and 5 until average temperature is within 10 F of set temperature. 7. Reseal adjustment screw to prevent movement. 8. If thermostat cannot be calibrated, replace thermostat as outlined under GRIDDLE & HOT TOP THERMOSTATS in REMOVAL AND REPLACEMENT OF PARTS. HOT TOP THERMOSTAT CALIBRATION 1. Set the control to position 3 (approx. 460 F). 2. Allow the thermostat to cycle three times. 3. When the hot top indicator light goes out, place the temperature tester surface mount probe directly in the middle of the hot top. 4. Note the tester reading when the indicator light turns ON and OFF. NOTE: If the difference between the ON and OFF temperatures is greater than 25 F, replace the thermostat. 5. Add these two temperatures together, then divide the sum by 2 to obtain an average temperature. A. If the average temperature is within 10 F of the set temperature, the thermostat is calibrated. B. If the average temperature is not within 10 F of the set temperature: 1) Remove thermostat knob. 2) Insert a flathead screwdriver into thermostat dial stem until it reaches the calibration screw. Page 17 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - SERVICE PROCEDURES AND ADJUSTMENTS 3) Turn adjustment screw CW to increase and CCW to decrease temperature. NOTE: A 1/4 turn equals 35 F change. 6. Replace knob and repeat steps 4 and 5 until average temperature is within 10 F of set temperature. 7. Reseal adjustment screw to prevent movement. 8. If thermostat cannot be calibrated, replace thermostat as outlined under GRIDDLE & HOT TOP THERMOSTATS in REMOVAL AND REPLACEMENT OF PARTS. DOOR ADJUSTMENT NOTE: Door is in adjustment when it closes on its own when held open 5 inches and comes to rest after 1 or 0 bounces. 1. Remove the kick panel as outlined under COVERS AND PANELS in REMOVAL AND REPLACEMENT OF PARTS. 2. Loosen nuts while holding "J" hooks from rotating. NOTE: One nut will be right hand threaded and the other will be left hand threaded. 3 HEAT SWITCH TEST (480V) 1. Open the control panel as outlined under COVERS AND PANELS in REMOVAL AND REPLACEMENT OF PARTS. 2. Check input voltage at L3 and L2. NOTE: See AI 2207 in WIRING DIAGRAMS. 3. Check for correct output voltage at output pins for all positions of the switch. Position L3 Input-Output at Pin(s) L2 Input-Output at Pin(s) High 1 & 3 2 Med 1 2 Low 1 3 INFINITE SWITCH TEST (208, 240V) 1. Open the control panel as outlined under COVERS AND PANELS in REMOVAL AND REPLACEMENT OF PARTS. 3. Rotate turnbuckle to either increase or decrease spring tension. NOTE: "J" hooks cannot rotate while rotating turnbuckle in order to adjust tension. 4. Once desired spring tension is acquired, tighten nuts. 5. Install kick panel. 2. Connect a voltmeter (set on 300VAC range) to the output terminals H1 and H2. 3. Compare the percentage of ON time to OFF time. NOTE: ±7.5% tolerance allowable. Dial Setting % on Time Seconds on Seconds off Hi 100 ALL 0 Med. 48 15 15 Low 37 8 14 Med. Low 28 7 24 Very Low 7 3 33 F25297 (July 2008) Page 18 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - SERVICE PROCEDURES AND ADJUSTMENTS HEATING ELEMENT TEST 1. Turn power ON and set temperature control to the highest setting. 2. Measure the voltage at the heating element terminals and verify it against the data plate voltage. A. If voltage is incorrect, find the source of the problem. If voltage is correct, check current draw (amps) through the heating element lead wires. B. If unable to check current draw, a resistance check may indicate a malfunctioning element. 1) Disconnect electrical supply. 2) Remove lead wires from the heating element and check resistance (ohms). See table below for proper values. 3. Check for proper operation. NOTE: This method is preferred over a resistance check when a clamp on type amp meter is available. 1) If current draw is correct then heating element is functioning properly. See table below for proper values. 2) If current draw is not correct, turn the power switch OFF and disconnect the electrical supply to the oven. a. Replace heating element then proceed to step 3. Voltage Element KW per Element AMPS per Element Lead OHMS per Element Oven 5 24.03 8.65 208 Hot Top 5 24.03 8.65 French Plate 2 9.61 21.63 Griddle 3.4 16.34 12.73 240 Oven 5 20.83 11.52 Hot Top 5 20.83 11.52 French Plate 2 8.33 28.80 Griddle 3.4 14.16 16.94 Oven 5 10.41 17.28 480 Hot Top 5 10.41 17.28 French Plate 2 4.16 43.20 Griddle 3.4 7.08 25.41 NOTES: 1. Values in the table are nominal. Tolerance is +5/-10%. 2. Voltage values are @ 60HZ. 3. Resistance values (ohms) are @ 77 F. Page 19 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - ELECTRICAL OPERATION COMPONENT FUNCTION ELECTRICAL OPERATION Thermostat... Regulates temperature of oven cavity, griddle, and hot top. 3 Heat Switch... Controls how power is applied to oven heating element assemblies and to the hot plates on 480V units. Heating Elements... Heats oven cavity and range tops. Infinite Switch... Controls power to hot plate heaters, full power for a specified amount of time per position of the switch. Contactors (2)... Controls power to convection blower motor. Second contactor controls power to oven elements. (480V units only) Door Switch... Prevents convection oven from operating with the door open. Rocker Switch... Controls power from contactor to convection oven switch. Transformer... Steps 480V down to 240V. Fuses (2)... Protect convection oven control circuit on 208V and 240V units. (15 amp) Indicator Light... Lights when power is being applied to heating elements. F25297 (July 2008) Page 20 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - ELECTRICAL OPERATION OVEN SEQUENCE OF OPERATION 208/240V 1. Conditions A. Unit connected to supply voltage. B. Thermostat OFF. C. Rocker switch OFF. D. Door switch closed. E. Oven at room temperature. 2. Rocker switch turned ON. A. Blower motor runs. 3. Thermostat set to desired temperature. A. Indicator light lights. B. Power is supplied to heaters. 4. Oven reaches desired temperature. A. Power is removed from the heaters and indicator light. 5. Oven temperature drops below set temperature. A. Steps 4 and 5 cycle until the thermostat or rocker switch is turned OFF or power is removed from the oven. 480V 1. Conditions A. Unit connected to supply voltage. B. Thermostat OFF. C. Rocker switch OFF. D. Door switch closed. E. Oven at room temperature. 2. Rocker switch turned ON. A. Motor contactor is energized and blower motor runs. 3. Thermostat set to desired temperature. A. Indicator light lights. B. Heater contactor is energized and power is supplied to heaters. 4. Oven reaches desired temperature. A. Power removed from heater contactor, power is removed from the heaters and indicator light. 5. Oven temperature drops below set temperature. A. Thermostat contacts close and steps 4 and 5 cycle until the thermostat or rocker switch is turned OFF or power is removed from the oven. Page 21 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - ELECTRICAL OPERATION WIRING DIAGRAMS E36LC (208, 240V) Wiring Diagram F25297 (July 2008) Page 22 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - ELECTRICAL OPERATION Page 23 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - ELECTRICAL OPERATION E36LC (480V) Wiring Diagram F25297 (July 2008) Page 24 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - ELECTRICAL OPERATION Page 25 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - ELECTRICAL OPERATION 208V & 240V Range Top Wiring Diagrams F25297 (July 2008) Page 26 of 28
E36LC SERIES ELECTRIC RESTAURANT RANGES - ELECTRICAL OPERATION 480V Range Top Wiring Diagrams Page 27 of 28 F25297 (July 2008)
E36LC SERIES ELECTRIC RESTAURANT RANGES - TROUBLESHOOTING TROUBLESHOOTING Oven SYMPTOM POSSIBLE CAUSES No heat, blower inoperative. 1. Main breaker open. 2. Thermostat malfunction. 3. Rocker switch open. 4. Contactors malfunctioning (480V). 5. Oven door switch open. 6. Heaters inoperative. 7. Transformer malfunction (480V). No heat, blower operative. 1. Heating element contactor malfunction (480V). 2. Heaters inoperative. Cooking problems. 1. Consult Instruction Manual. Oven temperature not at set point. 1. Thermostat not calibrated. 2. Thermostat malfunction. Range Tops SYMPTOM POSSIBLE CAUSES Tops do not heat. 1. Main breaker open. 2. Thermostat malfunction (griddle, hot top). 3. 3 heat switch malfunction (french plates 480V). 4. Infinite switch inoperative (french plates 208-240V). 5. Top inoperative. Hot top or griddle thermostat cycles at a different temperature than the set temperature. 1. Thermostat needs calibrated. 2. Thermostat inoperative. 3. Thermostat bulb positioned incorrectly. Cooking problems. 1. Consult Instruction Manual. Hot top or griddle heats beyond set temperature. 1. Thermostat not calibrated. 2. Thermostat malfunction. F25297 (July 2008) Printed in U.S.A.