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Microwave Section….Inverter Power supply HV Area

Microwave Section….Inverter Power supply HV Area

Low Voltage Input from DPC 0-2.7

Low Voltage Input from DPC 0-2.7

VAC ( see table on page 30)

VAC ( see table on page 30)

120 VAC Input

120 VAC Input

High Voltage 4000 VDC

High Voltage 4000 VDC

Output to 

Output to 

Mag 

Mag 

Tube

Tube

Note Do not attempt to repair this inverter

Note Do not attempt to repair this inverter

board. Replace as a complete assembly

board. Replace as a complete assembly

Содержание SMW Series

Страница 1: ...1 1 SMW Series Oven Training Program SMW SMW Series Series Oven Oven Training Training Program Program...

Страница 2: ...Model Numbers Warranty Warranty Component Description and Access Component Description and Access Error Codes Error Codes How the Oven Works Microwave Section How the Oven Works Microwave Section How...

Страница 3: ...ermit grounding through the neutral Some local codes permit grounding through the neutral 30 amp circuit breaker 30 amp circuit breaker Unit is dual rated 120 208 240 volts Unit is dual rated 120 208...

Страница 4: ...inches below cabinet base placed approx 5 inches below cabinet base Cabinet base Cabinet base must be capable of supporting the must be capable of supporting the weight of the unit approx 250 pounds w...

Страница 5: ...in either Weight can be displayed in either Lbs Lbs or or Kgs Kgs Child lock out feature Child lock out feature Demo mode on off for retail store display Demo mode on off for retail store display Auto...

Страница 6: ...Variable Broil Convection and Convection Roast Sense A Touch glass control panel Sense A Touch glass control panel Halogen oven lights Halogen oven lights Large viewing window Large viewing window Tw...

Страница 7: ...oor liner fine grain porcelain Oven door liner fine grain porcelain enamel enamel Two 10W 12VAC Halogen lights per Two 10W 12VAC Halogen lights per cavity cavity Equivalent to a 60W incandescent Equiv...

Страница 8: ...tion A 12 or 24 hour clock option Centigrade or fahrenheit temperature display Centigrade or fahrenheit temperature display 3 Specialty Modes 3 Specialty Modes Proof Proof Cycles bake circuits at 100...

Страница 9: ...Operation Sabbath Sabbath only available in bake cycle only available in bake cycle element indicator light cycles with heat element indicator light cycles with heat all other keys functions are dead...

Страница 10: ...ven Warming Drawer Microwave Oven Microwave Oven 4 Models 4 Models SMW272YB Black Glass SMW272YB Black Glass SMW272YW White Glass SMW272YW White Glass SMW272YS Stainless Steel SMW272YS Stainless Steel...

Страница 11: ...er 27 27 27 Oven 27 Oven 2 2 Double oven Double oven Y Y 2000 Introduction Year 2000 Introduction Year The Y designates a change in The Y designates a change in form finish form finish appearance appe...

Страница 12: ...r from date of installation or occupancy occupancy Service must be performed Service must be performed by an by an authorized service agent authorized service agent Warranty Claim Warranty Claim must...

Страница 13: ...or assembly includes membrane switch DPC membrane switch DPC Digital Programmer Digital Programmer Control Control Inverter board Inverter board Lamp Lamp mag mag tube tube Stirrer motor Stirrer motor...

Страница 14: ...section microwave section Remove vent frame from Remove vent frame from around the microwave around the microwave unit This frame is a one unit This frame is a one piece construction piece constructi...

Страница 15: ...ld the microwave base to the oven housing base to the oven housing Remove the spring catches Remove the spring catches which are secured with which are secured with two screws two screws Bow out the s...

Страница 16: ...moval Removal Before removing Before removing section remove section remove warming drawer to warming drawer to avoid scratching avoid scratching Slide tabs on both Slide tabs on both sides of rails a...

Страница 17: ...Slide section part way out leaving the right out leaving the right rear corner still inside rear corner still inside housing housing While holding front of While holding front of unit reach inside and...

Страница 18: ...moval Section can now be Section can now be removed completely removed completely and set down on a and set down on a solid surface solid surface Note the exhaust duct Note the exhaust duct covers on...

Страница 19: ...To gain access to the To gain access to the microwave components microwave components the duct exhaust parts the duct exhaust parts must first be removed must first be removed from the microwave from...

Страница 20: ...ing the screws from the sides screws from the sides and rear the cover slides and rear the cover slides away from the front away from the front allowing access to most allowing access to most of the c...

Страница 21: ...team Sensor Location inside cover inside cover Mag Mag tube thermal cutout tube thermal cutout N C opens at 105 N C opens at 105 deg deg C C Mag Mag tube is secured with tube is secured with four scre...

Страница 22: ...and lamp assembly Lamp assembly Lamp assembly lamp is 20watts 120V lamp is 20watts 120V Primary latch switch N O Primary latch switch N O Secondary latch switch N O Secondary latch switch N O is the...

Страница 23: ...23 23 Microwave Section Microwave Section Door Switch Locations Adjustments Door Switch Locations Adjustments...

Страница 24: ...ng SMW Microwave switch relay wiring N O N O Switch Switch N C N C Switch Switch N O Switch N O Switch C C N O N O W W W W B B B B B B GR GR GR GR W W W W BL BL B B OR OR 24 24 R R W W BR BR W White Y...

Страница 25: ...ridge fuse regular cartridge fuse Temperature sensor Temperature sensor measures 40 000 Ohms to measures 40 000 Ohms to ground If excessive cabinet ground If excessive cabinet temperature is detected...

Страница 26: ...ribbon connector and the two relay connector and the two relay plugs plugs all connection plugs are color all connection plugs are color coded so that they can t be coded so that they can t be mis mis...

Страница 27: ...ower Supply Board Power Supply Board disconnect the disconnect the mag mag tube HV tube HV wires wires Unsnap the plastic air guide Unsnap the plastic air guide from the tabs from the tabs To remove b...

Страница 28: ...ter Terminals CN702 CN702 120VAC 120VAC input to transformer input to transformer CN701 CN701 Signal Signal voltage from DPC voltage from DPC circuit 3 wire plug circuit 3 wire plug Voltage varies fro...

Страница 29: ...e Input from DPC 0 2 7 VAC see table on page 30 VAC see table on page 30 120 VAC Input 120 VAC Input High Voltage 4000 VDC High Voltage 4000 VDC Output to Output to Mag Mag Tube Tube Note Do not attem...

Страница 30: ...30 30 Variable Power Voltage readings from Variable Power Voltage readings from DPC plug CN3 DPC plug CN3...

Страница 31: ...re secure with screws re secure with screws Stirrer motor is held in Stirrer motor is held in place with two screws place with two screws Motor is a synchronous Motor is a synchronous type with a D s...

Страница 32: ...32 32 Component Description Access Stirrer Motor Component Description Component Description Access Access Stirrer Motor Stirrer Motor D Slot D Slot D Shaft D Shaft...

Страница 33: ...33 33 Microwave Microwave Control Panel Control Panel...

Страница 34: ...icrowave door closed short switch is open primary and secondary latch switches are closed Unit is not and secondary latch switches are closed Unit is not operating operating 34 34 A A B B Note the ove...

Страница 35: ...icrowave door closed short switch is open primary and secondary latch switches are closed Unit is not and secondary latch switches are closed Unit is not operating operating 35 35 A A B B Note the ove...

Страница 36: ...Supply Low Voltage Supply controls variable power controls variable power Microwave on high power relay coil B is energized Microwave on high power relay coil B is energized constantly during each 22...

Страница 37: ...y controls variable power controls variable power Microwave on 20 power level relay coil B is energized 15 Microwave on 20 power level relay coil B is energized 15 seconds on and 7 seconds off out of...

Страница 38: ...38 38 Description of Operating Sequence Description of Operating Sequence...

Страница 39: ...39 39 Description of Operating Sequence Description of Operating Sequence Sensor Sensor Cooking Sensor Reheat Cooking Sensor Reheat...

Страница 40: ...40 40...

Страница 41: ...41 41 Microwave Section Component Test Procedures Microwave Section Component Test Procedures 41 41...

Страница 42: ...42 42 Troubleshooting Guide Troubleshooting Guide...

Страница 43: ...43 43 Troubleshooting Guide continued Troubleshooting Guide continued...

Страница 44: ...44 44 Microwave Section Troubleshooting HV Inverter Microwave Section Troubleshooting HV Inverter 44 44...

Страница 45: ...45 45 45 45 Troubleshooting HV Inverter continued Troubleshooting HV Inverter continued...

Страница 46: ...46 46...

Страница 47: ...47 47 Trouble Related to Digital Programmer Circuit continued Trouble Related to Digital Programmer Circuit continued...

Страница 48: ...48 48...

Страница 49: ...49 49 Microwave Leakage Test continued Microwave Leakage Test continued...

Страница 50: ...Light can be can be viewed through drawer front viewed through drawer front 450 Watt 450 Watt Element Element On Off On Off Switch Switch Thermostat Thermostat has low medium has low medium high setti...

Страница 51: ...51 51 Component Description Component Description Access Access Element Slides Element Slides Slides are Slides are held in held in place with place with two screws two screws...

Страница 52: ...52 52 Component Component Description Description Access Element Access Element Slides Slides 52 52...

Страница 53: ...140 degrees F Low 140 degrees F Medium 170 degrees F Medium 170 degrees F High 210 degrees F High 210 degrees F Indicator light remains Indicator light remains illuminated the whole time the illumina...

Страница 54: ...s To access controls front frame of front frame of warming drawer has warming drawer has to be removed Peel to be removed Peel back drawer gasket back drawer gasket and remove the 14 and remove the 14...

Страница 55: ...ow be accessed from accessed from right side of unit right side of unit This procedure is This procedure is also necessary to also necessary to replace drawer replace drawer gasket gasket Component De...

Страница 56: ...56 56 Component Description Component Description Access Switch Thermostat Access Switch Thermostat...

Страница 57: ...57 57 How the Oven works How the Oven works Warming Drawer Warming Drawer 57 57 Unit in the off position Unit in the off position 3 75 amps 3 75 amps...

Страница 58: ...58 How the Oven works How the Oven works Warming Drawer Warming Drawer 58 58 Unit in the on position Unit in the on position thermostat contacts thermostat contacts cycling cycling 3 75 amps 3 75 amp...

Страница 59: ...ntrol panel pad numeric control panel Centigrade or Fahrenheit temperature Centigrade or Fahrenheit temperature display display A 12 or 24 hour clock A 12 or 24 hour clock Child lock out feature Child...

Страница 60: ...Roast mode Recessed 8 wrap broil element Recessed 8 wrap broil element Internal ventilation system Internal ventilation system End of cycle chime End of cycle chime To restore Touch Upper oven OFF pad...

Страница 61: ...play Window Display Cook Time Cook Time Timer 1 Timer 1 Clock Clock Stop Time Stop Time Timer 2 Timer 2 Oven Light Oven Light Number Pads Number Pads Bake Bake Broil Broil Convection Convection Off Of...

Страница 62: ...Power up unit Power up unit Do the following within 5 minutes before Do the following within 5 minutes before any other programming any other programming Hold the STOP TIME pad key for 10 Hold the ST...

Страница 63: ...perature between 500 and 550 Set Temperature between 500 and 550 Hold BAKE pad for 4 seconds Hold BAKE pad for 4 seconds 0 or last calibrated Temperature will display 0 or last calibrated Temperature...

Страница 64: ...ion Component Description Lower Oven Relay Lower Oven Relay Board Board Control Panel Control Panel Display Head Display Head Sensor Sensor Halogen Light Halogen Light Halogen Light Halogen Light Tran...

Страница 65: ...alled Fan Relay coil is energized coil is energized by 120volts AC by 120volts AC from air switch from air switch Contacts transfer Contacts transfer 120VAC from HTC 120VAC from HTC to DLB relay on to...

Страница 66: ...Connector Transfers data J2 Pin Connector Transfers data between board touch panel between board touch panel display head display head K7 Light K7 Light Relay Powers Relay Powers Light Light Transfor...

Страница 67: ...8 Line Break K4 Convection Motor K4 Convection Motor K1 Bake Element K1 Bake Element K9 Latch Motor K9 Latch Motor K2 Broil Element K2 Broil Element K6 Cooling Motor K6 Cooling Motor K3 Convection Ele...

Страница 68: ...K4 K4 K9 K9 K6 K6 K7 K7 J1 J1 J2 J2 J5 J5 J8 J8 J10 J10 J9 J9 J7 J7 L2 L2 N N L1 L1 J1 is the power supply from the main relay board J1 is the power supply from the main relay board 20 VAC to the dis...

Страница 69: ...Oven Relay Board Pin connectors Lower Oven Relay Board Pin connectors K8 K8 K1 K1 K2 K2 K3 K3 K4 K4 K9 K9 K6 K6 K7 K7 J1 J1 J2 J2 J5 J5 J8 J8 J10 J10 J9 J9 J7 J7 L2 L2 J2 transfers data between relay...

Страница 70: ...9 K6 K6 K7 K7 J1 J1 J2 J2 J5 J5 J8 J8 J10 J10 J9 J9 J7 J7 L2 L2 N N L1 L1 J5 Transfers signal voltage through the latch switches J5 Transfers signal voltage through the latch switches J10 Transfers si...

Страница 71: ...on Touch Control Panel Contains 22 touch Contains 22 touch control pads control pads Touching the glass Touching the glass disturbs the disturbs the electromagnetic field electromagnetic field Touchin...

Страница 72: ...72 72 Touch Control Panel Touch Control Panel Electromagnetic field effect NOT membrane NOT capacitive 22 control pads Programmable...

Страница 73: ...point is marked with a minus Other point is marked with a plus Other point is marked with a plus Remove conforming coating on surface of Remove conforming coating on surface of pads pads Test for volt...

Страница 74: ...74 74 Component Description Display Head Component Description Display Head Displays Displays the the program program function function selected selected...

Страница 75: ...ent Description Sensor 1050 OHMS at room 1050 OHMS at room temperature temperature Ohm out leads at Ohm out leads at relay board relay board F3 open sensor F3 open sensor circuit circuit F4 short in s...

Страница 76: ...omes on when light pad is Comes on when light pad is selected selected Comes on when door is Comes on when door is opened opened Don t touch bulb with Don t touch bulb with fingers use a tissue as fin...

Страница 77: ...Step down Transformer Step down Transformer 120VAC to 12VAC 120VAC to 12VAC Activated by relay K7 on Activated by relay K7 on main relay board main relay board Supplies voltage for Supplies voltage f...

Страница 78: ...ntinues to run after oven is turned off until run after oven is turned off until cavity temperature drops below cavity temperature drops below 200 degrees F for a cooking 200 degrees F for a cooking m...

Страница 79: ...s through front grills on oven frame Action of blower Action of blower Moves air across halogen light housings Moves air across halogen light housings Pulls air up through doors into plenum area Pulls...

Страница 80: ...Description Convection motor Convection motor Bake element Bake element Broil element Broil element Convection element Convection element Door Latch Assembly Door Latch Assembly High temp cutout High...

Страница 81: ...iption Convection Fan Assembly Cooling fan blade for Cooling fan blade for cooling the motor cooling the motor Cooling blade comes Cooling blade comes with motor with motor Convection fan blade Convec...

Страница 82: ...82 82 Component Description Bake Element Component Description Component Description Bake Element Bake element is Bake element is rated at 2600W rated at 2600W...

Страница 83: ...nent Description Broil Element Component Description Component Description Broil Element Rated at 3600 W Rated at 3600 W Heats the oven to Heats the oven to 840 degrees in 840 degrees in clean cycle c...

Страница 84: ...84 84 Component Description Convection Element Component Description Component Description Convection Element Rated at 2750 W Rated at 2750 W Located on rear Located on rear wall of oven wall of oven...

Страница 85: ...h Normal use Normal use Lock switch open Lock switch open Unlock switch closed Unlock switch closed During clean During clean Lock switch closed Lock switch closed Unlock switch open Unlock switch ope...

Страница 86: ...ips at 350 degrees Trips at 350 degrees Will trip if oven interior Will trip if oven interior exceeds 975 degrees exceeds 975 degrees Disables L1 to stalled fan Disables L1 to stalled fan relay contac...

Страница 87: ...lose K7 turning on close K7 turning on lights lights In clean monitors the fact In clean monitors the fact that the door is closed that the door is closed signals board to power signals board to power...

Страница 88: ...ir path of cooling fan cooling fan When closed it allows for When closed it allows for the activation of the stalled the activation of the stalled fan relay fan relay Cover must be on back of Cover mu...

Страница 89: ...lacement oven cell will include the A replacement oven cell will include the following items as a single unit following items as a single unit Bake element Bake element Broil element Broil element Hal...

Страница 90: ......

Страница 91: ...S SM and SMW Oven Error Code Messages continued S SM and SMW Oven Error Code Messages continued Error Code Displayed Possible Cause Example Corrective Action...

Страница 92: ...S SM and SMW Oven Error Code Messages continued S SM and SMW Oven Error Code Messages continued Error Code Displayed Possible Cause Example Corrective Action...

Страница 93: ...S SM and SMW Oven Error Code Messages continued S SM and SMW Oven Error Code Messages continued Error Code Displayed Possible Cause Example Corrective Action...

Страница 94: ...S SM and SMW Oven Error Code Messages continued S SM and SMW Oven Error Code Messages continued...

Страница 95: ...S SM and SMW Oven Error Code Messages continued S SM and SMW Oven Error Code Messages continued...

Страница 96: ...W THE LOWER OVEN WORKS HOW THE LOWER OVEN HOW THE LOWER OVEN WORKS WORKS BAKE CYCLE BAKE CYCLE BROIL CYCLE BROIL CYCLE CONVECTION BAKE CONVECTION BAKE CONVECTION ROAST CONVECTION ROAST CLEAN CYCLE CLE...

Страница 97: ...91 91 N C N C...

Страница 98: ...92 92 N C N C 92 92...

Страница 99: ...93 93 93 93 N C N C...

Страница 100: ...94 94 94 94 N C N C...

Страница 101: ...95 95 N C N C...

Страница 102: ...switch closes Door switch closes Lock switch closes Lock switch closes Unlock switch opens Unlock switch opens 4 4 3 3 1 1 J5 J5 Moly Moly plugs are keyed plugs are keyed This is the frame This is th...

Страница 103: ...97 97 How the Oven How the Oven works works N C N C...

Страница 104: ...98 98 How the Oven works How the Oven works 98 98 N C N C...

Страница 105: ...lay and the words pre heat it just won t heat just won t heat F3 fail code means open sensor circuit This F3 fail code means open sensor circuit This will display only when oven is in heat mode if wil...

Страница 106: ...which will result in poor contact with the terminal post on the control relay boards This may allow contact with the terminal post to be intermittent as the oven heats up resulting in an errant fault...

Страница 107: ...Number 14 38 518 INFORMATION ITEM Starting with 2012 production S Single Ovens have a new light trans former Part number 14 38 517 The old and new transformers are inter changeable However the seconda...

Страница 108: ...troduce a new style chrome plated handle on all stainless steel series models All current stainless steel models with black handle will now have the new style handle The product model numbers will als...

Страница 109: ...and the heater terminals are touching Wired incorrectly this causes a short circuit The heating element will stay on continuously RECOMMENDATION Warming Drawers wiring corrected if the customer compla...

Страница 110: ...272 INFORMATION ITEM In July 2000 we restructured our S oven control panel assemblies to exclude the frame However to assist our service centers we have made the control panel frame available individ...

Страница 111: ...sing a shoulder washer instead of a bushing This redesign helps prevent breakage of the door glass between the handle and the door liner as they are assembled together as illustrated below RECOMMENDAT...

Страница 112: ...made to our S C and CM ovens We have changed mounting of the cooling blower assembly to the upper plenum rear wall We have deleted the blower mounting bracket part number 16 10 391 and repositioned th...

Страница 113: ...C ovens CM ovens INFORMATION ITEM The screw part number 14 91 102 used to mount the convection motor to the motor bracket has been changed We are now using a low profile head screw The new part numbe...

Страница 114: ...ctivate the air switch sooner In addition we have installed a new air deflector directly on the oven rear cover See illustration below RECOMMENDATION For ovens manufactured prior to November 2001 the...

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