Thermador SMW Series Training Program
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Thermador SMW Series Training Program

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Summary of Contents for Thermador SMW Series

  • Page 1 Series Series Series Oven Oven Oven Training Training Training Program Program Program...
  • Page 2 SMW Series Oven SMW Series Oven SMW Series Oven Training Program Training Program Training Program Installation Installation ä ä Features and Operation Features and Operation ä ä Model Numbers Model Numbers ä ä Warranty Warranty ä ä Component Description and Access Component Description and Access ä...

  • Page 3: Installation

    Installation Installation Electrical Power Connection Electrical Power Connection • Requires four wire supply L1, L2, Neutral and a bare ground • Requires four wire supply L1, L2, Neutral and a bare ground Some local codes permit grounding through the neutral Some local codes permit grounding through the neutral •...
  • Page 4 Installation…continued Installation…continued • Electrical conduit box The preferred location • Electrical conduit box The preferred location would be to install it 2-1/2 inches above the unit, in would be to install it 2-1/2 inches above the unit, in the center of the cabinet. However it may be the center of the cabinet.

  • Page 5: Features And Operation

    Features and Operation Features and Operation Features and Operation Upper oven Upper oven ä ä features a 2.1 cubic foot microwave features a 2.1 cubic foot microwave 1100 watts of power with sensor cooking & 10 power levels 1100 watts of power with sensor cooking & 10 power levels ä...
  • Page 6 Features and Operation Features and Operation Features and Operation Lower oven Lower oven ä ä is a S Series convection oven with 4 modes of is a S Series convection oven with 4 modes of cooking cooking Bake, Variable Broil, Convection and Convection Roast Bake, Variable Broil, Convection and Convection Roast ä...
  • Page 7 Features Features Features Oven & door liner...fine grain porcelain Oven & door liner...fine grain porcelain ä ä enamel enamel Two 10W 12VAC Halogen lights per Two 10W 12VAC Halogen lights per ä ä cavity cavity Equivalent to a 60W incandescent Equivalent to a 60W incandescent ä...
  • Page 8 Features and Operation Features and Operation Features and Operation Panel Lock (child lockout) Panel Lock (child lockout) ä ä A 12 or 24 hour clock option A 12 or 24 hour clock option ä ä Centigrade or fahrenheit temperature display Centigrade or fahrenheit temperature display ä...
  • Page 9 Features and Operation Features and Operation Features and Operation Sabbath…. Sabbath…. ä ä only available in bake cycle only available in bake cycle ä ä element indicator light cycles with heat element indicator light cycles with heat ä ä all other keys/functions are dead except off key all other keys/functions are dead except off key ä...

  • Page 10: Model Numbers

    Model Numbers Model Numbers Model Numbers 27” Integrated Electric Oven, Warming Drawer & 27” Integrated Electric Oven, Warming Drawer & ä ä Microwave Oven Microwave Oven 4 Models 4 Models ä ä SMW272YB………Black Glass SMW272YB………Black Glass ä ä SMW272YW………White Glass SMW272YW………White Glass ä...
  • Page 11 Model Numbers Model Numbers Model Numbers Example….SMW272YB Example….SMW272YB Example….SMW272YB S-Series convection oven S-Series convection oven ä ä Microwave oven Microwave oven ä ä Warming drawer Warming drawer ä ä 27 = 27” Oven 27 = 27” Oven ä ä Double oven Double oven ä...

  • Page 12: Warranty

    Warranty Warranty Warranty One full year from date of installation or One full year from date of installation or ä ä occupancy occupancy Service must be performed by an Service must be performed by an ä ä authorized service agent authorized service agent Warranty Claim must be submitted within 45...

  • Page 13: Microwave Oven Section

    Microwave Oven Section Microwave Oven Section ….. ….. component description & access component description & access Microwave section Microwave section ä ä Microwave vent-cover Microwave vent-cover ä ä Touch control door assembly… includes Touch control door assembly… includes ä ä membrane switch &...
  • Page 14 Microwave Section… Microwave Section… Microwave Section… Removal Removal Removal To gain access to the To gain access to the ä ä microwave section microwave section Remove vent frame from Remove vent frame from ä ä around the microwave around the microwave unit.
  • Page 15 Microwave Section… Microwave Section… Microwave Section… Removal Removal Removal Remove the 2 screws Remove the 2 screws ä ä which hold the microwave which hold the microwave base to the oven housing base to the oven housing Remove the spring catches, Remove the spring catches, ä...
  • Page 16 Microwave Section… Microwave Section… Microwave Section… Removal Removal Removal Before removing Before removing ä ä section, remove section, remove warming drawer to warming drawer to avoid scratching avoid scratching Slide tabs on both Slide tabs on both ä ä sides of rails and sides of rails and drawer will pull out drawer will pull out...
  • Page 17 Microwave Section… Microwave Section… Microwave Section… Removal Removal Removal Slide section part way Slide section part way ä ä 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 ä...
  • Page 18 Microwave Section … Microwave Section … Microwave Section … Removal Removal Removal Section can now be Section can now be ä ä 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 ä...
  • Page 19 Microwave Section… Microwave Section… Microwave Section… Access Duct Cover Access Duct Cover Access Duct Cover To gain access to the To gain access to the ä ä microwave components microwave components the duct exhaust parts the duct exhaust parts must first be removed must first be removed from the microwave from the microwave...
  • Page 20 Microwave Section… Microwave Section… Microwave Section… Access Outer Cover Access Outer Cover Access Outer Cover After removing the After removing the ä ä 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...

  • Page 21: Component Description

    Component Description & … Component Description & … Component Description & … Access Access Access tube & tube thermal cutout tube & Mag tube thermal cutout tube & tube thermal cutout Steam Sensor Location Steam Sensor Location ä ä ( inside cover) ( inside cover) -tube thermal cutout -tube thermal cutout...
  • Page 22 Component Description & Component Description & Component Description & Access…. Access…. Access…. Door switches and lamp assembly Door switches and lamp assembly Door switches and lamp assembly Lamp assembly Lamp assembly ä ä lamp is 20watts 120V lamp is 20watts 120V Primary latch switch N/O Primary latch switch N/O ä...
  • Page 23 Microwave Section…. Microwave Section…. Door Switch Locations & Adjustments Door Switch Locations & Adjustments...
  • Page 24 SMW Microwave switch & relay wiring SMW Microwave switch & relay wiring N/O Switch N/O Switch (W) White (Y) Yellow (R) Red (W) White (Y) Yellow (R) Red Switch Switch Switch Switch...
  • Page 25 Component Description & Component Description & Component Description & Access….Fuse Temp. Sensor & Noise Filter Access….Fuse Temp. Sensor & Noise Filter Access….Fuse Temp. Sensor & Noise Filter Fuse is rated at 18 amps Fuse is rated at 18 amps ä ä...
  • Page 26 Component Description & Component Description & Component Description & Access… Access… Access… Microwave Touch Control Door Assembly Microwave Touch Control Door Assembly Microwave Touch Control Door Assembly Before removing door Before removing door ä ä assembly disconnect the four assembly disconnect the four plug connectors, the ribbon plug connectors, the ribbon...
  • Page 27 Component Description & Component Description & Component Description & Access….High Voltage Inverter Access….High Voltage Inverter Access….High Voltage Inverter To gain access to the Inverter To gain access to the Inverter ä ä Power Supply Board Power Supply Board disconnect the tube HV disconnect the tube HV...
  • Page 28 Component Description & Component Description & Component Description & Access…High Voltage Inverter Terminals Access…High Voltage Inverter Terminals Access…High Voltage Inverter Terminals CN702 …120VAC CN702 …120VAC ä ä input to transformer input to transformer CN701 …Signal CN701 …Signal ä ä voltage from DPC voltage from DPC circuit (3 wire plug) circuit (3 wire plug)
  • Page 29 Microwave Section….Inverter Power supply HV Area Microwave Section….Inverter Power supply HV Area 120 VAC Input Note Do not attempt to repair this inverter 120 VAC Input Note Do not attempt to repair this inverter board. Replace as a complete assembly board.
  • Page 30 Variable Power & Voltage readings from Variable Power & Voltage readings from DPC plug CN3 DPC plug CN3...

  • Page 31: Stirrer Motor

    Component Description & Component Description & Component Description & Access….. Access….. Access….. Stirrer Motor Stirrer Motor Stirrer Motor Remove base of unit or Remove base of unit or ä ä break off access cover and break off access cover and re-secure with screws re-secure with screws Stirrer motor is held in...
  • Page 32 Component Description & Component Description & Component Description & Access…. Access…. Access…. Stirrer Motor Stirrer Motor Stirrer Motor ‘D’ Slot ‘D’ Slot ä ä ‘D’ Shaft ‘D’ Shaft ä ä...
  • Page 33 Microwave Microwave Control Panel Control Panel...
  • Page 34 SMW How the Oven works…Microwave section SMW How the Oven works…Microwave section Microwave door closed, short switch is open, primary Microwave 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.
  • Page 35 SMW How the Oven works…Microwave section SMW How the Oven works…Microwave section Microwave door closed, short switch is open, primary Microwave 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.
  • Page 36 SMW How the Oven works…Microwave section SMW How the Oven works…Microwave section Microwave on high, power relay coil ‘B’ is energized Microwave on high, power relay coil ‘B’ is energized constantly during each 22 second cycle while calling constantly during each 22 second cycle while calling for heat for heat Low Voltage Supply...
  • Page 37 SMW How the Oven works…Microwave section SMW How the Oven works…Microwave section 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 each 22 second cycle seconds on and 7 seconds off out of each 22 second cycle while calling for heat while calling for heat...
  • Page 38 Description of Operating Sequence Description of Operating Sequence...
  • Page 39 Description of Operating Sequence…. Description of Operating Sequence…. Sensor Sensor Cooking & Sensor Reheat Cooking & Sensor Reheat...
  • Page 41 Microwave Section…..Component Test Procedures Microwave Section…..Component Test Procedures...
  • Page 42 Troubleshooting Guide Troubleshooting Guide...
  • Page 43 Troubleshooting Guide…..continued Troubleshooting Guide…..continued...
  • Page 44 Microwave Section Troubleshooting HV Inverter Microwave Section Troubleshooting HV Inverter...
  • Page 45 Troubleshooting HV Inverter…continued Troubleshooting HV Inverter…continued...
  • Page 47 Trouble Related to Digital Programmer Circuit….continued Trouble Related to Digital Programmer Circuit….continued...
  • Page 49 Microwave Leakage Test….continued Microwave Leakage Test….continued...
  • Page 50 Warming Drawer Section…. Warming Drawer Section…. Features & Features & Benefits Benefits On Indicator Light can be On Indicator Light can be • • viewed through drawer front viewed through drawer front • 450 Watt Element • 450 Watt Element •...

  • Page 51: Component Description

    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...
  • Page 52 Component Component Description & Description & Access….Element Access….Element & Slides & Slides...
  • Page 53 Component Description & Component Description & Access Access …Thermostat & On light …Thermostat & On light Thermostat Control has three Thermostat Control has three settings…. settings…. Low..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...
  • Page 54 Component Description & Access... Component Description & Access... Thermostat Switch and on lamp Thermostat Switch and on lamp To access controls To access controls front frame of front frame of warming drawer has warming drawer has to be removed. Peel to be removed.
  • Page 55 Component Description & Component Description & Access…. Access…. Thermostat switch on lamp & gasket Thermostat switch on lamp & gasket Thermostat, Thermostat, switch, and the switch, and the ‘on’ indicator ‘on’ indicator light can now be light can now be accessed from accessed from right side of unit...
  • Page 56 Component Description & Component Description & Access Switch & Thermostat Access Switch & Thermostat...
  • Page 57 How the Oven works…. How the Oven works…. Warming Drawer Warming Drawer Unit in the off position Unit in the off position 3.75 amps 3.75 amps...
  • Page 58 How the Oven works…. How the Oven works…. Warming Drawer Warming Drawer Unit in the on position, Unit in the on position, thermostat contacts thermostat contacts cycling cycling 3.75 amps 3.75 amps...
  • Page 59 Lower Oven Features Lower Oven Features Lower Oven Features “Field Sensor” touch control “Field Sensor” touch control ä ä Digi -pad numeric control panel Digi -pad numeric control panel ä ä Centigrade or Fahrenheit temperature Centigrade or Fahrenheit temperature ä ä...
  • Page 60 Features Features Features Third Element Convection Third Element Convection ä ä Convection Roast mode Convection Roast mode ä ä Recessed 8 wrap broil element Recessed 8 wrap broil element ä ä Internal ventilation system Internal ventilation system ä ä End of cycle chime End of cycle chime ä...
  • Page 61 …..and Operation …..and Operation …..and Operation Window Display Number Pads Window Display Number Pads ä ä ä ä Cook Time Bake Cook Time Bake ä ä ä ä Timer 1 Broil Timer 1 Broil ä ä ä ä Clock Convection Clock Convection ä...

  • Page 62: Test Mode

    …..and Operation Test Mode …..and Operation Test Mode …..and Operation Test Mode Electronic oven control test mode Electronic oven control test mode ä ä Power up unit Power up unit ä ä Do the following within 5 minutes, before Do the following within 5 minutes, before ä...
  • Page 63 …..and Operation Calibration …..and Operation Calibration …..and Operation Calibration Oven Temperature Calibration Oven Temperature Calibration ä ä Touch BAKE pad Touch BAKE pad ä ä Set Temperature between 500 and 550 Set Temperature between 500 and 550 ä ä Hold BAKE pad for 4 seconds Hold BAKE pad for 4 seconds ä...
  • Page 64 Component Description Component Description Component Description Lower Oven Relay Sensor Lower Oven Relay Sensor ä ä ä ä Board Board Halogen Light Halogen Light ä ä Control Panel Control Panel ä ä Halogen Light Halogen Light ä ä Display Head Transformer Display Head Transformer...
  • Page 65 Component Description & Access…. Component Description & Access…. Component Description & Access…. Plenum Plenum Plenum Components Components Components Time delay fuse Time delay fuse rated at 20amp rated at 20amp Terminal Block Control Panel Terminal Block Control Panel Stalled Fan Relay Display Head Display Head Stalled Fan Relay...
  • Page 66 Component Description… Component Description… Component Description… Relay Board Relay Board Relay Board (Part # 16-10-660) (Part # 16-10-660) J10 Pin J10 Pin J2 Pin Connector Transfers data J2 Pin Connector Transfers data J5 Pin K6 Cooling J5 Pin K6 Cooling Connector Connector between board, touch panel &...
  • Page 67 Component Description Component Description Component Description Lower Oven Relay Board….Relays Lower Oven Relay Board….Relays Lower Oven Relay Board….Relays K8…Line Break K4…Convection Motor K8…Line Break K4…Convection Motor K1…Bake Element K9…Latch Motor K1…Bake Element K9…Latch Motor K2…Broil Element K6…Cooling Motor K2…Broil Element K6…Cooling Motor K3…Convection Element K7…Light Transformer...
  • Page 68 Component Description Component Description Component Description Lower Oven Relay Board…Pin connectors Lower Oven Relay Board…Pin connectors Lower Oven Relay Board…Pin connectors J1 is the power supply from the main relay board J1 is the power supply from the main relay board 20 VAC to the display head to light it up (contacts 3-4) 20 VAC to the display head to light it up (contacts 3-4) 12 VDC for logic power to the touch board (contacts 1-2)
  • Page 69 Component Description Component Description Component Description Lower Oven Relay Board…Pin connectors Lower Oven Relay Board…Pin connectors Lower Oven Relay Board…Pin connectors J2…transfers data between relay board, touch control J2…transfers data between relay board, touch control & display head & display head...

  • Page 70: Lower Oven

    Component Description…. Component Description…. Component Description…. Lower Lower Lower Oven Oven Oven Relay Board…Pin connectors Relay Board…Pin connectors Relay Board…Pin connectors J5 … Transfers signal voltage through the latch switches J5 … Transfers signal voltage through the latch switches J10 …Transfers signal voltage to sensor J10 …Transfers signal voltage to sensor Note Since this is a single S oven pin connectors J7,J8 and J9...
  • Page 71 Component Description Component Description Touch Control Panel Touch Control Panel Contains 22 touch Contains 22 touch ä ä control pads control pads Touching the glass Touching the glass ä ä disturbs the disturbs the electromagnetic field electromagnetic field Touching the glass Touching the glass ä...

  • Page 72: Touch Control Panel

    Touch Control Panel Touch Control Panel • Electromagnetic field effect • NOT membrane • NOT capacitive • 22 control pads • Programmable...
  • Page 73 Testing the touch control panel Testing the touch control panel Test points on touch control panel Test points on touch control panel ä ä One point is marked with a minus One point is marked with a minus ä ä Other point is marked with a plus Other point is marked with a plus ä...
  • Page 74 Component Description... Component Description... Display Head Display Head Displays Displays program program function function selected selected...
  • Page 75 Component Description Component Description Sensor Sensor 1050 OHMS at room 1050 OHMS at room ä ä temperature temperature Ohm out leads at Ohm out leads at ä ä relay board relay board F3 = open sensor F3 = open sensor ä...
  • Page 76 Component Description Component Description Halogen Lights Halogen Lights Activated by 12VAC from Activated by 12VAC from ä ä transformer transformer Comes on when light pad is Comes on when light pad is ä ä selected selected Comes on when door is Comes on when door is ä...
  • Page 77 Component Description Component Description Halogen Light Transformer Halogen Light Transformer Secondary Secondary winding winding Step down Transformer Step down Transformer ä ä 120VAC to 12VAC 120VAC to 12VAC ä ä Activated by relay K7 on Activated by relay K7 on ä...
  • Page 78 Component Description Component Description Cooling Fan Cooling Fan Is energized by K6 relay when Is energized by K6 relay when ä ä ever a cooking mode or self- ever a cooking mode or self- clean is selected. Continues to clean is selected. Continues to run after oven is turned off until run after oven is turned off until cavity temperature drops below...

  • Page 79: Air Flow Pattern

    Air flow pattern Air flow pattern Air flow pattern Natural air enters oven frame at vent holes on both Natural air enters oven frame at vent holes on both ä ä sides as well as through front grills on oven frame sides as well as through front grills on oven frame Action of blower Action of blower...
  • Page 80 Component Description Component Description Component Description Convection motor High temp cutout Convection motor High temp cutout ä ä ä ä Bake element Door switch Bake element Door switch ä ä ä ä Broil element Air switch Broil element Air switch ä...
  • Page 81 Component Description Component Description Convection Fan Assembly Convection Fan Assembly Cooling fan blade for Cooling fan blade for ä ä cooling the motor cooling the motor Cooling blade comes Cooling blade comes ä ä with motor with motor Convection fan blade Convection fan blade ä...
  • Page 82 Component Description Component Description Component Description Bake Element Bake Element Bake element is Bake element is ä ä rated at 2600W rated at 2600W...
  • Page 83 Component Description Component Description Component Description Broil Element Broil Element Rated at 3600 W Rated at 3600 W ä ä Heats the oven to Heats the oven to ä ä 840 degrees in 840 degrees in clean cycle clean cycle...
  • Page 84 Component Description Component Description Component Description Convection Element Convection Element Rated at 2750 W Rated at 2750 W ä ä Located on rear Located on rear ä ä wall of oven wall of oven...
  • Page 85 Component Description Component Description Component Description Door Latch Assembly Door Latch Assembly Lock Switch Lock Switch ä ä Unlock Switch Unlock Switch ä ä Normal use: Normal use: ä ä Lock switch….open Lock switch….open ä ä Unlock switch..closed Unlock switch..closed ä...
  • Page 86 Component Description Component Description Component Description High Temp Cutout High Temp Cutout Trips at 350 degrees Trips at 350 degrees ä ä Will trip if oven interior Will trip if oven interior ä ä exceeds 975 degrees exceeds 975 degrees Disables L1 to stalled fan Disables L1 to stalled fan ä...
  • Page 87 Component Description Component Description Component Description Door Switch Door Switch Serves three functions Serves three functions ä ä Door open signals board to Door open signals board to ä ä close K7…. turning on close K7…. turning on lights lights In clean monitors the fact In clean monitors the fact ä...
  • Page 88 Component Description Component Description Component Description Air Switch Air Switch Mounted in air path of Mounted in air path of ä ä cooling fan cooling fan When closed, it allows for When closed, it allows for ä ä the activation of the stalled the activation of the stalled fan relay fan relay...
  • Page 89 Component Description Component Description Component Description Oven Module Oven Module A replacement oven cell will include the A replacement oven cell will include the ä ä following items as a single unit: following items as a single unit: Bake element Bake element ä...
  • Page 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...
  • Page 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...
  • Page 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...
  • Page 94 S, SM and SMW Oven Error Code Messages…continued S, SM and SMW Oven Error Code Messages…continued...
  • Page 95 S, SM and SMW Oven Error Code Messages…continued S, SM and SMW Oven Error Code Messages…continued...
  • Page 96 HOW THE LOWER OVEN HOW THE LOWER OVEN HOW THE LOWER OVEN WORKS WORKS WORKS BAKE CYCLE BAKE CYCLE ä ä BROIL CYCLE BROIL CYCLE ä ä CONVECTION BAKE CONVECTION BAKE ä ä CONVECTION ROAST CONVECTION ROAST ä ä CLEAN CYCLE CLEAN CYCLE ä...

  • Page 102: How The Oven Works

    How The Oven Works How The Oven Works How The Oven Works Door Switch Circuit…..Door Locked Door Switch Circuit…..Door Locked Latch motor Latch motor Moly plugs are keyed Moly plugs are keyed is activated is activated J5….latch J5….latch by K9 relay by K9 relay Latch circuit is 12 VDC Latch circuit is 12 VDC...
  • Page 103 How the Oven How the Oven works... works...
  • Page 104 How the Oven works... How the Oven works...

  • Page 105: Hints And Tips

    HINTS & TIPS HINTS & TIPS HINTS & TIPS If the air switch circuit is open, the oven will If the air switch circuit is open, the oven will ä ä look as though it is heating, including look as though it is heating, including temperature display and the words pre-heat, it temperature display and the words pre-heat, it just won’t heat...
  • Page 106 Oven Fault Code Problems Due To Poor Contact Problems at Harness Plug Using a flashlight shine the light through the back of the plug The light passes through the plug giving a visual indication of a compressed contact. Example A Example B Contact is in normal The contact is compressed...
  • Page 107 12477-02 ECO# _______ Bulletin No. _____ SC-148 Technical Service Bulletin TO: ALL SERVICE CENTERS SUBJECT: LIGHT TRANSFORMER FOR “S” SINGLE OVENS, Part 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.
  • Page 108 Bulletin Number: SC-150 ECO Number : 91705 Product: S, C, CM, SM and SMW ovens Date: January 2002 TECHNICAL SERVICE BULLETIN TO: ALL SERVICE CENTERS RE: CHROME PLATED HANDLE MODELS: SC301TS, SC302TS, SCD302TS, SC272TS, SCD272TS, C301US, C302US, C272US, C271US, CM301US, CM302US , SMW272YS, SM272YS INFORMATION ITEM: Beginning with October 2001, production we will introduce a new style chrome plated handle on all...
  • Page 109 Bulletin Number: SC-153 ECO Number : 91613 Product: Warming Drawer Date: May, 2001 TECHNICAL SERVICE BULLETIN TO: ALL SERVICE CENTERS RE: Warming Drawer Overheating MODELS: ALL WD24U, WD27U, WD30X AND SMW CONDITION: Field reports indicate that warming drawers could overheat and stay on continuously. PROBABLE CAUSE: The thermostat terminals and the heater terminals are touching.
  • Page 110 Bulletin Number: SC-155 ECO Number : 91636 Product: S Oven Date: August, 2001 TECHNICAL SERVICE BULLETIN TO: All Service Centers SUBJECT: “S” OVEN CONTROL PANEL FRAME MODEL: S272, S301, S302, SC272, SC301, SC302, SCD272, SCD302, SMW272 and SM 272 INFORMATION ITEM: In July, 2000 we restructured our “S”...
  • Page 111 Bulletin Number: SC-157 Product: OVEN Subject: IMPROVED PRO HANDLE ASSEMBLY Date: APRIL, 2002 Models: SCD272TP, SCD302TP/ZS, SC30ITP/ZS and SMW272YP TECHNICAL SERVICE BULLETIN ECO NUMBER : 12690-02 TO: ALL SERVICE CENTERS INFORMATION ITEM: Beginning with March 2001 production, we have improved the “PRO Handle” oven door glass by using a shoulder washer instead of a bushing.
  • Page 112 Bulletin Number: SC-158 ECO Number : 12539-01 Product: All ‘S”, “C”, “CM” OVENS Date: August, 2001 TECHNICAL SERVICE BULLETIN TO: ALL SERVICE CENTERS RE: Upper Cooling Blower Assembly MODELS: All ‘S”, “C”, “CM” OVENS INFORMATION ITEM: A quality improvement has been made to our “S”, “C”, and “CM” ovens. We have changed mounting of the cooling blower assembly to the upper plenum rear wall.
  • Page 113 Bulletin Number: CM-CJ-06 ECO Number : 12541-01 Product: S ovens C ovens, CM ovens Date: March 2001 TECHNICAL SERVICE BULLETIN TO: ALL SERVICE CENTERS LOW PROFILE HEAD SCREW MODELS: S ovens 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.
  • Page 114 Bulletin Number: CM-CJ-15 Product: Oven Subject: Oven Air Switch Relocation Date: May 2002 Models: ALL SC/SCD, SM/SMW, C and CM Ovens TECHNICAL SERVICE BULLETIN ECO NUMBER : 91731 TO: ALL SERVICE CENTERS INFORMATION ITEM: Beginning with November 2001 production, we have relocated the air switch on all single and double ovens to the rear of the oven.

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