Hot Food Display Service Technical Manual
Contents
1. 55094 n Vendo SANDENVENDO AMERICA INC TROUBLESHOOTING Unplug unit before servicing Symptom Possible Cause Remedy Unit does not turn on Power cord unplugged No power at outlet Plug HFD cord in outlet Check voltage at outlet 115VAC circuit breaker off Tum on breaker HFD6 amp 7 remove lower rear cover to access breaker Internal power cord disconnected Check resistance across plug ensure the breaker is on measure resistance across plug terminal line and neutral should be about 1600 Front glass door open HFD6 amp 7 only Controller should read OPEn Shut front glass door press power button on controller to initialize One or more Xenon lamps is off Bulb blown Check at terminal for resistance of about 440 Check to ensure bulb is securely installed Replace blown bulb s HFD display ambient does not reach 150 F One or more heater plates not reaching lemperature An error E70 to E75 may be displayed on controller HFD HFDC and HFDM need 30 minutes to reach temperature HFDH and HFDHC needs at least 1 hour Check plate temperature at controller see controller operation One or more Xenon lamp not functioning Check at terminal for resistance of about 440 Check to ensure bulb is securely installed Replace blown bulb s E60 to E65 error Heater thermistor open circuit Pull out controller disconnect corresp2. AMERICA INC SAFETY WARNINGS The HFD is for indoor use only Do not use near water or in condensing humidity To prevent electric shock or fire do not kink pull or pinch the power cord and insure no equipment is resting on the power cord If the power cord is damaged unplug and replace Do not connect with other plugs Do not use an extension cord When unplugging first turn off the power switch Then pull the plug at the end of the power cord not by pulling the power cord since the cord can be damaged overheat and cause a fire Do not spray water on the HFD It may cause an electric shock or fire Do not touch the power plug switches or other electrical parts with wet hands It can cause an electric shock Periodically check that the plug is pushed in all the way To prevent injuries due to falling objects liquid spills electric shock or fire do not place heavy objects or liquid filed objects on top of the To prevent electric shock or fire do not use volatile or flammable products in or near the When moving the HFD turn the HFD off unplug and allow the unit to cool To prevent glass breakage and injury do not push on the glass Also use proper equipment and lifting techniques Insure the product doesn t tip while it is being moved If a lamp or any glass cracks or breaks turn off the power and discard all food in the HFD Replace lamp and or glass Remove all glass fragments Carefully inspect al
3. 1180812 Fan 2x only not shown 1180794 Fan Cable 1180812 Fan 2x and only not shown 1187878 Cable Fan with Switch 1187843 Rocker Switch 1180812 Fan 2x 12136866 55094 13
4. INC OPERATION Display and Keypad Time Use lett or right buttons to adjust shelf button temperature and timers down or up VO button Upper left shelf E Made et she Les x9 Upper right shelf USB port He mM Qm Middle right shelf Lower right shelf Lower left shelf Timer Setting and Operation Note to help prevent keypad damage push keypad buttons only with finger or thumb do not use ingernail utensil tool pen or other object Circulation fans may be turned on or off by the switch at the top rear of the HFD HFD 7 and HFDC Normal Operation Pressing the O button turns the HFD on or off When controller is off all lamps heaters displays and indicators are off Front on off button HFDC only press and hold for 5 seconds to turn the HFDC on or off Timers When a timer is off pressing the timer button once sets the countdown timer to the value preprogrammed into the controller Pressing the timer button again within three seconds while the indicator next to the button is blinking sets the timer to 30 minutes Each successive press within three seconds adds 30 minutes to the time up to 4 hours At 4 hours the next button press cycles the timer back to 30 minutes again Once the timer is activated the LED next to the shelf timer button becomes green The display then revert
5. V and2 SANDENVENDO AMERICA INC HOT FOOD DISPLAY Technical Service Manual MODELS HFD000006 amp 7 HFDCO00002 HFDMO00002 HFDHO00001 HFDHC0001 amp 2 Table of Contents Commitment to Safety Safety Warnings Parts Operation Troubleshooting Controller Connections HFDC00002 HFDH00001 HFDMo0002 HFDHCOO01 HFDHCOD02 1213686e ECN 55094 1 Vendo SANDENVENDO AMERICA INC A COMMITMENT TO SAFETY The SandenVendo is committed to safety in every aspect of our product design SandenVendo is committed to alerting every user to the possible dangers involved in improper handling or maintenance of our equipment The servicing of any electrical or mechanical device involves potential hazards both to those servicing the equipment and to users of the equipment These hazards can arise because of improper maintenance techniques The purpose of this manual is to alert everyone servicing SandenVendo equipment of potentially hazardous areas and to provide basic safety guidelines for proper maintenance This manual contains various warnings that should be carefully read to minimize the risk of personal injury to service personnel This manual also contains service information to insure that proper methods are followed to avoid damaging the Hot Food Display HFD or making it unsafe It is also important to understand these warnings are not exhaustive SandenVendo could not possibly know evaluate or advise of all of the conceivabl
6. de Glass no decal 1165355 Left Decal 1207555 Shelt Assembly 1207567 Shelf Assembly 1182055 Middle amp Upper Shelf Rack Black A 1178798 Shelf Guard 1203125 Caution t Hot Label 7 1178038 Vertical Rear Gasket not shown 1158685 Side Gasket 1178052 Horizontal Rear Gasket 1182066 Bottom Rack Black 1165366 1177435 Front Gasket not shown 1207488 Bottom Shelf Assembly 1201293 Controller On back of unit not shown 1161921 Breaker 15A See last page for Controller Connections 1162225 Power Cord for electrical component part numbers 1213686 55094 Vendo SANDENVENDO AMERICA INC HFDHC0001 and 2 1185603 3 Horizontal 7 Frame Gasket See last page for Controller Connections for electrical component part numbers 1226236 Shelf Guard 4 1226272 Side Glass no decals 1158696 2 Side Gasket 1158696 1 Front Gasket 1226352 Top Middle Rack not shown 1185603 4 Vertical Frame Gasket syn 1226156 Left Front Door 1226399 Bottom Rack not shown 1226156 1 Right Front Door 1226094 Rear Door 1229516 Solid Front Glass HFDHO0001 1213686e ECN 55094 7 Vendo SANDENVENDO AMERICA
7. e ways in which service might be done nor can SandenVendo predict all of the possible hazardous results The safety precautions outlined in this manual provide the basis for an effective safety program Use these precautions along with the service manual when installing or servicing the HFD We strongly recommend a similar commitment to safety by every servicing organization Only properly trained personnel should have access to the interior of the machine This will minimize the potential hazards that are inherent in electrical and mechanical devices SandenVendo has no control over the machine once it leaves the premises It is the owner or lessor s responsibility to maintain the Hot Food Display in a safe condition Follow all Safety Rules and Safety Warnings in this manual If you have any questions please contact the Technical Services Department of SandenVendo SAFETY RULES Read the Safety Warnings before installation or service Test for proper grounding before installing to reduce the risk of electrical shock and fire Turn off power switch and disconnect power cord from wall outlet before servicing Use only fully trained service technicians for Power On servicing Use adequate equipment when moving the HFD Use only authorized replacement parts Be aware of inherent dangers in rocking or tipping the HFD Always turn power off before plugging or unplugging HFD to wall outlet 1213686 55094 2 Vendo
8. eaker 15 Amp 1194238 Rear Door 1158673 Slide Rail Lower Horizontal 1158969 Slide Rail Side Vertical 1159604 Shelf Edge Gasket 1180812 Fan HFD HFD 7 only Shelf edge gasket same each shelf Shelf Assembly Connector Colors Connector Color Description White Shelf Asy Upper Left Black Shelf Asy Middle Left Red left Green right Shelf Asy Bottom Shelf Yellow Shelf Asy Middle Right Blue Shelf Asy Upper Right Rear door and slides Vertical slide rail same each side See last page for Controller Connections for electrical component part numbers Vende SANDENVENDO AMERICA INC HFDC00002 Rack Rack 5 Combo Serve Front Door amp Shelf Parts Item Part Description 1 1200392 Left Door Assembly 2 12003921 Right Door Assembly 3 11856031 Frame Gasket Horizontal 2x 4 11856032 Frame Gasket Vertical 2x 5 1187405 Damper one each side 6 1202273 Extension Spring one each side 7 1199716 Rack Top Middle Shelf not shown 4x 8 1199728 Rack Bottom Shelf not shown 2x 9 1201311 Shelf Guard 4x 10 1207751 Shelf Assembly Upper Left 11 1207775 Shelf Assembly Middle Left 12 1207786 Shelf Assembly Middle Right 13 1207763 Shelf Assembly Upper Right 12136866 55094 5 Vende sANDENVENDO AMERICA INC HFDMO00002 1178854 Lamp Guard 1166955 Si
9. ht shelf not heating E72 Lower left shelf not heating E75 Lower right shelf not heating Clear the error by powering off the unit correcting the problem and turning the unit on again Programming using USB drive The file must be vendo cfg and be saved on the root directory of the USB drive The file may be edited using Notepad Temperature and Timer Programming Format and Download svor Must be SVO1 001h This is configuration 001 h for standard HFD n for HFDM c for HFDC etc UL 235 2 00 0 30 Upper Left shelf set to 235 F left timer 2 hours right timer 30 minutes Shelf temperatures may be set between 100 and 255 F Setting a shelf temperature to 000 turns off that shelf Shelf temperature must be 3 digits always in F MR 235 00 2 00 Each timer may be set between 0 30 and 4 00 LR 220 1 00 2 00 1 displays F 0 displays C DA 1 turns on controller ambient display 0 turns display off DS Front door switch 1 for HFDS amp 7 all others 0 1213686 55094 9 Vendo SANDENVENDO AMERICA INC Any text may follow here There can be no spaces or blank lines line is terminated by pressing Enter The only variables that are allowed to change are the date code shelf temperatures and times the 0 or 1 after CF and DS and the comment at the end of the file With the HFD off Insert the flash drive in the controller s USB port on the controller The configuration will load
10. in less than 5 seconds The display will show the configuration code example 001h from the vendo cfg file Pull the flash drive out of the controller controller may remain Bono Factory Controller Configurations HFD6 amp 7 Left Side I Right Side Heater Healer Left Right Left Right Setpoint Timer Timer SROIN Timer Timer 235 200 1 00 235 1 00 1 00 LR 220 2 00 1 235 200 200 235 2 00 2 00 220 100 200 220 2 00 1 00 DAA DS svoi 001 Left Side Right Side UL 000 2 00 2 00 Heater P Sepon Left Lett Right f Timer Timer Timer OFF 200 2 00 200 OFF 2 00 2 00 2 00 245 2 00 200 200 2 Left Side Right Side Heater Setpoint Left Right m Fight LL 240 2 00 2 00 E imer imer UR 240 2 00 2 00 240 200 200 240 200 200 MR 240 2 00 2 00 LR 240 2 00 24 240 200 200 240 200 200 240 200 200 240 200 200 DAA 08 0 1213686 55094 10 Vendo SANDENVENDO AMERICA INC and Svo HEDH and e s Heater Ler Heater Lett Right LL 245 2 00 2 00 etpoint Timer Timer Setpoint Timer Timer UR 245 2 00 2 00 245 200 200 245 290 200 MR 245 2 00 2 00 LR 245 2 00 2 00 25 200 200 245 200 200 245 200 2 00 245 2 00 2 00 05 0 1213686
11. l surfaces corners and gaskets to insure all glass fragments have been removed before returning HFD to service Keep HFD out of direct sunlight and away from heat sources Do not hang from the door this may cause injury or electric shack Turn off and unplug HFD before servicing and let HFD cool before cleaning or servicing Use proper tools while servicing Use only authorized replacement parts The HFD temperatures are factory set to meet NSF food safety requirements Changing temperature settings may adversely impact food safely The lamps are an integral part of the food heating system If a lamp is not illuminated the temperatures may not be maintained for food safety 1213686 55094 3 Bottom Heater Plate Front Gasket Breaker switch Power cord 15 Front door gaskets Controller 1213686 55094 Heater Plate Side Gasket HFD000006 HFD000007 Part Description 1158489 Gasket Door Side 1158477 Gasket Door Upper 1158491 Gasket Door Lower 1201293 Controller 1207143 Heater Kit not shown 1207441 Shelf Assembly Upper Left 1207465 Shelf Assembly Middle Left 1207415 Shelf Assembly Bottom 1207476 Shelf Assembly Middle Right 1207453 Shelf Assembly Upper Right 1158685 Gasket A 1158696 Gasket 1159513 Lamp Socket 1159525 Xenon Heating Lamp 1216614 Power Cord Plug 1161921 Circuit Br
12. n to turn the unit off The lights inside the HFD will turn off With controller power off hold down the Time button then press and hold the I O button until the display comes on The display will show the firmware revision Push either of the two buttons corresponding to the shelf that you wish to change the temperature Both lights on either side of the buttons will begin blinking Push and hold the button on the left to decrease the temperature shown on the display Push and hold the button on the right to increase the temperature shown on the display Repeat the procedure using the buttons that correspond to each of the six shelves for HFD6 amp 7 or four shelves HFDM Once the temperatures are adjusted for each of the separate zones push the button to lock in the new temperature settings and to turn the HFD back on the lights in the will come Error Codes E30 Internal ambient thermistor open circuit E60 Upper left shelf thermistor open circuit except E63 Upper right shelf thermistor open circuit E61 Middle left shelf thermistor open circuit except HFDM E64 Middle right shelf thermistor open circuit E62 Lower left shelf thermistor open circuit E65 Lower right shelf thermistor open circuit E90 Unable to read USB drive check vendo cig for file format error E70 Upper left shelf not heating except E73 Upper right shelf not heating E71 Middle left shelf not heating except HFDM E74 Middle rig
13. onding heater connector If resistance between the red wires is gt 100 0 check cause of open circuit Heater may need replacing Heater plate not heating Fuse blown on controller Remove controller and check uses Wires disconnected Remove controller and check all connections at controller Failed heating element Check resistance across white and black terminals from heater Resistance should be about 950 at room temperature 1213686 55094 12 Vend SANDENVENDO AMERICA INC CONTROLLER CONNECTIONS Loft Right as viewed from the controller side E ENTM MG pO eit Pu 1201358 Heater EDM 1220678 Healer x HEDH HFDHC 1159525 Lamp bc HEDS amp 7 HFC Tera ed 1178877 Lamp aor m Lamp bc HEDM HEDH oh fhe Meer haan Heater 1159513 Lamp Socket 6x HFDM 2x ton Made internal Heater mm 1206564 Lamp Cabo HED HFDC doeset Lamp Gable ac HOM 1232444 Lanp Gable Sx HEDH HEDHC Power Cord 1201293 Controller 1200882 Door Sith Cable 750065 DAR HFD6 amp 7 only gt sun 1202224 Remote ono cable _ 1087074 DEL HFDC only gt Seen O TIERE Thermistor Cable Thermistor 741127484 Fuse and HFDHC not shown 3 15 amp siowblaw 1226174 Lamp to Fan Cable 2x 250V 5x20 mm
14. s to HFD internal ambient temperature display While a timer is on pressing a timer button once displays the remaining time for 4 seconds then shelf temperature for 4 seconds and then the display reverts to the internal ambient temperature display At 15 minutes remaining time the LED turns yellow When no time remains the LED turns red plus an audible alarm sounds Pressing the timer button next to the blinking red LED clears the alarm and restarts the timer Holding down the Time button then pressing a timer key turns off the timer Converting Temperature from F to C or to F With controller power off hold down the Time button then press and hold the I O button until the display comes on The display will show the firmware revision Press and release the TIME button to change from F to C C to 1213686 55094 8 Vendo SANDENVENDO AMERICA INC Push the button to turn on the HFD and lock in this setting Ambient Temperature Display To turn the ambient temperature display on or off with the controller on press and hold the Time button and press the I O button This feature is disabled in firmware revision 4 01 Front Door If the front door is opened HFD6 and 7 only the controller turns off only the lights The display reads OPEn After closing the front door the lights turn and the display reverts to internal ambient temperature Heater Temperature Adjustment Push the l O butto
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