https://appliancetechmanuals.com Oven Table of Contents Manual introduction Removing the O ven Temperature Sensor ....40 and Safety Precautions......1 – 2 Removing the Convection Bake Element ....41 Removing A Convection Fan Motor ......42 Microwave Oven Section: Specifications ..3 Removing A H alogen Lamp H older ......44 Removal from Cabinet ...........
Introduction SMW O ven Service Manual SMW SERVICE MAN UAL This manual contains information that is necessary for servicing the Thermador® built-in electric ovens, models: SMW 272B, SMW 272W, SMW 272S, SMW 272P T his manual, as well as the information contained in it, is designed to be used...
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https://appliancetechmanuals.com Introduction SMW Oven Service Manual IN TRODUCTION Model SMW 272 Model SMW 272 is desigmed with modular construction which makes it easier to service. The SMW O ven has a microwave section that is enclosed in the structure. The microwave section can be pulled out to service additionally, it has a warming drawer built into the structure below the microwave section.
https://appliancetechmanuals.com Microwave O ven Section SMW O ven Service Manual Microwave Oven Section COOK STOP BAKE TIME TIME SELF TIMER 1 TIMER 2 BROIL CLEAN OVEN CONVECTION CLOCK CONVECTION LIGHT ROAST SENSOR SENSOR COOK REHEAT POWER LEVEL CORN TIMER CLOCK MORE QUICK FUNCTION...
https://appliancetechmanuals.com Microwave Oven Section SMW O ven Service Manual To remove microwave section from cabinet: 1) Using both hands, pull the sides of the frame forward and unsnap the posts on both sides of the frame from the catches on the enclosure (See Illustrations, below). 2) Remove the two screws holding the microwave section in the enclosure.
https://appliancetechmanuals.com Microwave Oven Section SMW O ven Service Manual Microwave Control Panel Beep Sound W hen a pad is pressed correctly, a beep will be heard. If a pad is pressed and no beep is heard, the unit did not or cannot Display W indow accept the instruction.
https://appliancetechmanuals.com Microwave O ven Section SMW O ven Service Manual SCH MAT IC DIAGRAM CAUTION: NOTE: Door is closed. Unit is not operating. HIGH VOLTAGE AREA Ground Chassis MAGNETRON CN701 THERMAL PRIMARY CUTOUT LATCH SWITCH CN703 CN702 E702 AC120V TURN OVEN 60Hz TABLE...
https://appliancetechmanuals.com W arming Drawer Section SMW O ven Service Manual To Replace Thermostat or On/Off Switch A Remove drawer assembly ( See Figure 1.) Figure 1. REMOVIN G T H E DRAW ER To remove the drawer: To replace the drawer: •...
https://appliancetechmanuals.com W arming Drawer Section SMW O ven Service Manual Figure 3. Control Assembly Figure 4. H eating Element Screw (2) H eating Element 2. To replace heating element: a. Remove screws from element brackets in back of the liner. b D isconnect the wires from the bake element.
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual SYMBOLS YOU W ILL SEE IN THE MAN UAL The following symbols are provided throughout this operation and servicing of the oven, follow the instruc- manual. For reasons of personal safety and proper tions carefully each time you see one of the symbols.
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual SERIAL N UMBER/DATA STICKER LOCATION Figure 6. COOK STOP BAKE TIME TIME SELF TIMER 1 TIMER 2 BROIL CLEAN OVEN CONVECTION CLOCK CONVECTION LIGHT ROAST Oven Control Panel, located above M icrowave Section D isplay W indow Control Panel D at a Plat e show ing...
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G THE BAKE & BROIL ELEMEN TS, CATALYST WARNING Turn off the electrical power circuit to the oven at the main junction box before ser- vicing this unit. CAUTION W hen you work on the oven, be careful when handling the sheet metal parts.
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https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual Bracket Screws Catalyst Broil Element Brackets BACK OF LINER Figure 8 Bake Broil Element Element 2 Top Front Mounting Screws Figure 7 BACK OF LINER Connectors Bake Element Bracket Bracket Screws Figure 6 Page 39...
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G THE OVEN TEMPERATURE SEN SOR WARNING Remove the racks from the oven. Turn off the electrical power circuit to the Remove the screws from the bracket and pull oven at the main junction box before ser- the oven temperature sensor forward until vicing this unit.
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G THE CON VECTION BAKE ELEMEN T WARNING Remove the racks from the oven. Turn off the electrical power circuit to the Remove the front screws from the left and oven at the main junction box before ser- right oven rack supports and remove the sup- vicing this unit.
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G A CON VECTION FAN MOTOR WARNING Remove the hex nut from the front of the convection blade. N OTE: The nut has left-ro- Turn off the electrical power circuit to the tating threads.
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https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual Oven Liner White Wire (#44) Brown Wire (#45) Fan Motor Bracket with Insulation Fan Motor Screws Convection Blade E-Ring Flat Washer Hex Nut (Left-Rotating Thread) Top Screw Top Screw Convection Baffle Bottom Screws Figure 11 Page 43...
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual REMOVIN G A HALOGEN LAMP HOLDER WARNING Pry the lamp holder out of the oven liner and cut the wires approximately 2 from the lamp " Turn off the electrical power circuit to the CAU T ION : Be careful not holder body.
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https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual Halogen Lamp Lamp Holder Lamp Cover Figure 12 Page 45...
https://appliancetechmanuals.com Lower Oven Section SMW O ven Service Manual REMOVIN G THE CON TROL PAN EL & DISPLAY HEAD b) Using both hands, pull the top of the con- WARNING trol panel forward and unsnap the posts on both sides of the panel from the catches Turn off the electrical power circuit to the in the subpanel (see inset 1).
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https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual Inset 4 DISPLAY HEAD 888 888 88 88 Inset 1 CONV BAKE ROAST CONV BAKE ROAST DELAY START COOK TIMED CLEAN BROIL1 STEAM CLEAN BROIL2 STEAM STOP TIMER U L OVEN LOCK PREHEAT LOCK...
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G TH E OVEN LIGH T SW ITCH , TH E OVEN DOOR LATCH ASSEMBLY, & TH E H I-TEMP CUTOUT WARNING To remove the oven door latch assem- bly (see inset 2): Turn off the electrical power circuit to the a) Use a 1/4 ratchet and a 1/4...
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https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual Inset 1 Switch Wires TECH TIP!! Air Vent Grille You will need the following tools to remove the components: 1/4" ratchet Oven Light 1/4" thin-wall socket Switch Locking Arms # 2 Phillips O ffset Screwdriver OVEN DOOR LATCH SCREWS AIR VENT GRILLE AIR VENT GRILLE...
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G A RELAY BOARD WARNING Refer to Figure 16 below, and Figure 17 on the next page, for the following steps. Turn off the electrical power circuit to the oven at the main junction box before ser- Turn off the electrical power to the oven.
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G THE AIR SW ITCH Refer to Figure 19 on the next page for the follow- WARNING ing steps. Turn off the electrical power circuit to the Turn off the electrical power to the oven. oven at the main junction box before ser- O pen the lower oven door.
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https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual Mounting Screws Bracket AIR SWITCH Mounting Inset 3 Screws Bottom Trim Inset 2 Screw Bottom Trim Flange Inset 1 Side View Lower Oven Air Switch Figure 19 Air Switch Mounting Bracket Screws Page 53...
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G A BLOW ER To remove the lower blower (see Fig- WARNING ure 20): a) Remove the oven from the wall. Turn off the electrical power circuit to the oven at the main junction box before ser- b) Remove the rear panel from the oven.
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https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual Blower Wire (24) To Blower Wire (23) To Upper Blower Motor Upper Blower Motor Blower Bracket Lower Blower Figure 20 Page 55...
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G THE LAMP TRAN SFORMER & THE LOW ER OVEN STALLED FAN RELAY WARNING To remove an oven stalled fan relay (see Figure 22): Turn off the electrical power circuit to the a) Remove the screws and disconnect the oven at the main junction box before ser- wires from the relay terminals.
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G AN OVEN DOOR To remove the door: Refer to Figure 30 for the following steps. O pen the door to its fully open position. a) Grasp the door by the sides toward the back and raise the front of the door sev- Raise the hinge latch over the hook on each eral inches (there will be some resistance...
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G THE OVEN DOOR GASKET CAUTION W orking from one end of the gasket to the other, carefully pull the clips that are attached W hen you work on the oven, be careful to the gasket out of the holes in the oven when handling t he sheet met al part s.
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G THE OVEN DOOR COMPON EN TS CAUTION To remove any of the oven door components, remove the oven door from the oven (see W hen you work on the oven, be careful Page 57).
https://appliancetechmanuals.com Lower O ven Section SMW Oven Service Manual REMOVIN G THE LOW ER OVEN MODULE (27") Convection Kit—#35-00-661 WARNING Turn off the electrical power to the oven. To make servicing easier, remove the oven Turn off the electrical power circuit to the door (see Page 57).
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual TROUBLESHOOTIN G TESTIN G TH E COMPON EN TS WARNING TO AVOID ELECT RICAL SH OCK • DISCO N N ECT T H E PO W ER T O T H E APPLIAN CE BEFO RE SERVICIN G. •...
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https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual T H E CON VECT ION FAN MOTOR T H E LAMP T RAN SFORMER Refer to Page 42 to access the convection fan Refer to Pages 56 to access the lamp transformer. motor.
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https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual T H E OVEN DOOR LAT CH ASSEMBLY If the reading is not correct, remove and The oven door latch locks the oven door during the replace the switch. cycle (see the illustration at the bottom of CLEAN the next column for the various latch positions).
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https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual T H E BAKE ELEMEN T THE BROIL ELEMEN T Refer to Page 38 to access the bake element. Refer to Page 38 to access the broil element. W ith no power applied, remove the wires W ith no power applied, remove the wires from the terminals of the bake element.
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual CON N ECTORS W ire H arness No Pin A ribbon connector is used to connect the touch @ #4 control board to the display head. The ribbon has eighteen carbon traces (conductors) that transfer 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 To Touch Control Board the signals from control board connector P1 to...
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https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual CON N ECTOR J 5 CON N ECTOR P2 Connector P2 On Touch Control Board Upper Oven Not Used Door Latch Switch To Connector J1-2 On Relay Board To Connector J1-2 On Display Head To Connector J1-1 On Display Head...
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https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual CON N ECTOR J 8 CON N ECTORS J 9 & J 10 Not Used Not Used Lower Oven Door Latch Switch Lower Oven Sensor 1050 Ω Door Switch N.O. Not Used Lock Switch N.O.
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual Oven Relay Board Matrix Relay Item Bake Broil Convect. Element Convect. Motor None Fans Both Oven Lights Oven Door Latch Page 69...
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https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual ERROR CODE MESSAGES Error Example Cause Corrective Action Code Replace main relay Element supervisor is enabled. Bad main relay board. board. O ver temperature detected. Intermittent temperature Replace temperature sensor or bad main relay sensor.
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual Error Corrective Cause Example Code Action Check all power con- Communication error detected by Lower oven relay board nections to the oven display head. not powered up. relay boards and the display head.
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual ELECTRON IC OVEN CON TROL TEST MODES H AN DLIN G T H E BOARDS Touch Control Board The Touch Control Board and the D isplay H ead H andle the Touch Control Board only by the edges are subject to failure if static electricity is trans- of the glass and the plastic frame.
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https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual up, provided no other key is pushed prior to STO P The test mode is designed to allow quick testing of TIME. The control will immediately enter the test the control inputs and outputs. mode.
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https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual KEY PRESSED ACT IO N Stop T ime Speaker will beep. Clock All the display segments are lit. Cook T ime Any error codes stored in the EEPRO M will be displayed. The time digits will display the last display head error code.
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual SEQUEN CE OF OPERATION Lower Oven Bake Cycle — Bake Preheat & Bake Mode Press the BAKE keypad and select an oven temperature and the following events will occur on the relay board: •...
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual Broil Cycle — Broil Preheat & Broil Mode Press the BRO IL keypad and select an oven temperature and the following events will occur on the relay board: • Line Relay closes.
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual Convection Cycle – Convection Preheat & Convection Mode Press the CO N VECTIO N keypad and select an oven temperature and the following events will occur on the relay board: •...
https://appliancetechmanuals.com Lower Oven Section SMW Oven Service Manual Convection Roast Cycle — Convection Roast Preheat Press the CO N VECTIO N RO AST keypad and select an oven temperature and the following events will occur on the relay board: • Line Relay closes.
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual Convection Roast Cycle N O TE: The Convection Roast cycle is a continuation of the Convection Roast Preheat cycle. Press the CO N VECTIO N RO AST keypad and the following events will occur on the relay board: •...
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual ˚ Self-Clean Cycle — Preheat Below 840 Press the SELF-CLEAN keypad and select a self-clean time period and the following events will occur on the relay board: • Line Relay closes.
https://appliancetechmanuals.com Lower O ven Section SMW O ven Service Manual Self-Clean Cycle N O TE: The Self-Clean cycle is a continuation of the Self-Clean Preheat cycle. Press the SELF-CLEAN keypad and the following events will occur on the relay board: •...
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