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BSH Thermador CEM304, Service Manual

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BSH Thermador CEM304 Service Manual Download Page 9

CEM/CET/CEP Service Manual

PAGE 7

Component Description

Radiant Elements

A single element, illustration above, uses a wire ribbon that is located under the glass ceramic surface to
provide the heat for cooking. The single element uses 1 wire ribbon.  Radiant elements are designed to cycle
on and off.

The dual element, illustration above, uses 2 wire ribbons to provide heat for cooking. There are 2 ribbons
within the same heating area. Either the small inner element or both the inner and outer elements may be
selected for use.

Component Description

https://appliancetechmanuals.com

Summary of Contents for Thermador CEM304

Page 1: ...F HI HI LO LO OFF HI HI LO LO OFF HOT SURFACE ON HI LO MED OFF HI OFF HI HI LO LO OFF LO LO MED HI LO OFF HI HI LO LO OFF HI HI LO LO OFF HI HOT SURFACE ON CEM456 CEM365 CEP365 CET365 CEP456 PAN SIZE...

Page 2: ...nt Description 12 Sensors 13 Component Description 13 Pot Sensing Circuit Board 14 Component Description 14 ElectronicTouch Control Board 15 Component Description 15 Relay board 16 Component Descripti...

Page 3: ...m 4000 W 6 Double 5 8 120 195 mm 800 1900 W MED MED HI HI LO LO OFF HI LO OFF HI LO OFF HI HI LO LO OFF HOT SURFACE ON LO MED MED HI LO OFF HI OFF HI HI LO LO OFF HI HI LO LO OFF HI HI LO LO OFF HOT S...

Page 4: ...P304 CET365 CEP365 2 1 3 1 1 2 4 5 5 6 1 7 4 5 5 6 8 NO TYPE SIZE WATTAGE 1 Single 6 140 mm 1200 W 2 Double 5 8 120 210 mm 750 2200 W 3 Triple 5 7 8 120 175 210 mm 800 1600 2300 W 4 Triple 5 7 9 120 1...

Page 5: ...top and control knobs The single radiant elements are controlled by the 1 cycle infinite switches The dual elementsare controlled by the 2 cycle infinite switches The bridge element iscontrolled by a...

Page 6: ...The ceramic top isprotected from overheating by limitersin the element The on indicator light servesasa pilot light and the hot surface light tellsyou when the cooktop is hot to touch The cooktop is...

Page 7: ...ized element Additionally it turns the element off when the pan is removed Zone smart can be turned on or off PAN SIZE ZONE SMART PANEL LOCK POWER 1 9 8 7 6 5 4 3 2 KEEP WARM 1 9 8 7 6 5 4 3 2 KEEP WA...

Page 8: ...gle Elements Dual Elements Triple Elements Radiant Bridge Elements Infinite Switches 1 Cycle 2 Cycle Control Knobs Relay Board ElectronicTouch Control Relay Board Pot Sensing Circuit Board Heat Limite...

Page 9: ...the heat for cooking The single element uses 1 wire ribbon Radiant elements are designed to cycle on and off The dual element illustration above uses 2 wire ribbons to provide heat for cooking There a...

Page 10: ...bridge element illustration above consistsof 3 separate wire ribbon elements W hen the bridge element all 3 elements is used it creates an oblong heating area that can be operated in 2 different ways...

Page 11: ...finite number of heat settings between the low and high positions Detents are found at the low and high positions to define minimumand maximum settings To turn on the small inner element push down on...

Page 12: ...s 16 amps at full capacity The 2 cycle infinite switch is rated at about 10 amps The relay is wired in series with the infinite switch and the bridge element W hen the infinite switch cycles it sends...

Page 13: ...o hot to touch The normally closed contacts control the amount of heat to the cooktop by switching on and off depending on the switch setting Although cycling is normal the following can cause the lim...

Page 14: ...light turns on whenever any element is turned on The light remains on until all the elements are turned off see illustration Each element features a hot indicator light circuit to show when the cookin...

Page 15: ...pan being used and turn on the appropriate element This feature is either on or off for all elements and works together with the pan sensing feature See illustration below Pan sensing sizing guideline...

Page 16: ...sense the presence and the size of a pan on the burner Heres how it works The input board sendsa signal to the sensor in each of the elements W hen a pan isplaced on the element the sensor sends a sig...

Page 17: ...board and a relay board These 2 componentsare fastened together with stand off clips There isa mylar sheet sandwiched between the 2 components These 2 components communicate with each other through a...

Page 18: ...eives 120 v a c and steps it down to 12 v a c The zenner diodes rectify the 12 v a c to 12 v d c to activate the 12 v d c snap relays The relay board is commanded by the input board Upon command the s...

Page 19: ...ustration Voltage isconstantly applied to the relay board The voltage createsan electro magnetic field around the input board W hen the user touchesthe ceramic glassand makesa selection the circuit is...

Page 20: ...igned for installation in the counter top with zero clearance to adjacent walls and projecting surfaces constructed of combustible materials A 30 inch minimum clearance is required between the top of...

Page 21: ...304 B 19 7 8 505 mm 20 508 mm C 28 3 4 731 mm 28 7 8 734 mm CEM365 B 19 7 8 505 mm 20 508 mm C 34 3 4 883 mm 34 7 8 886 mm CEM365 B 19 7 8 505 mm 20 508 mm C 43 3 4 1111 mm 43 7 8 1114 mm Cooktop Dime...

Page 22: ...block underneath the countertop before tighteningthe bracket screws 4 Center cooktop in the cutout to insure adequate clearance between the burner box and countertop edge A light pencil mark along th...

Page 23: ...CEM CET CEP Service Manual PAGE 21 Cooktop Installation https appliancetechmanuals com...

Page 24: ...esigned for installation in the counter top with zero clearance to adjacent walls and projecting surfaces constructed of combustible materials A 30 inch minimum clearance is required between the top o...

Page 25: ...n CET304 B 19 7 8 505 mm 20 508 mm CEP304 C 28 3 4 731 mm 28 7 8 734 mm CET365 B 19 7 8 505 mm 20 508 mm CEP365 C 34 3 4 883 mm 34 7 8 886 mm CEP456 B 19 7 8 505 mm 20 508 mm C 43 3 4 1111 mm 43 7 8 1...

Page 26: ...n block underneath the countertop before tighteningthe bracket screws 4 Center cooktop in the cutout to insure adequate clearance between the burner box and countertop edge A light pencil mark along t...

Page 27: ...CEM CET CEP Service Manual PAGE 25 Cooktop Installation https appliancetechmanuals com...

Page 28: ...M CET CEP Service Manual PAGE 26 Disassembly Uninstall and flip the cooktop over so the main top faces down Remove theT20 screws then lift the base off Cooktop Disassembly https appliancetechmanuals c...

Page 29: ...CEM CET CEP Service Manual PAGE 27 CEP Bottom Off Disassembly After the screws are removed lift off the bottom Cooktop Disassembly https appliancetechmanuals com...

Page 30: ...CEM CET CEP Service Manual PAGE 28 Disassembly Element Removal RemoveT20 screw from brace Cooktop Disassembly https appliancetechmanuals com...

Page 31: ...CEM CET CEP Service Manual Disassembly Element Removal LoosenT20 screw to remove element Mark the spring location with a magic marker PAGE 29 Cooktop Disassembly https appliancetechmanuals com...

Page 32: ...Manual Disassembly Control Board Removal 1 RemoveT20 Screws 2 Remove supports by lifting up and off 3 Press in the clips 4 Raise the wire blocks out of the frame PAGE 30 Cooktop Disassembly https appl...

Page 33: ...CEM CET CEP Service Manual Disassembly Control Board Removal 5 Lift out the control module PAGE 31 Cooktop Disassembly https appliancetechmanuals com...

Page 34: ...CEM CET CEP Service Manual Disassembly Mechanical Module PAGE 32 Cooktop Disassembly https appliancetechmanuals com...

Page 35: ...CEM CET CEP Service Manual Reassembly Install the center screw first then install remaining screws PAGE 33 Cooktop Reassembly https appliancetechmanuals com...

Page 36: ...he control is too high the control will switch off and all displays and LEDs will flashing A counter in the eeprom will be increased If the control is switched off the relay voltage of the line break...

Page 37: ...minutes minutes 1 2 5 10 15 20 30 Element ON Time Residual Indicator ON Time Zone ON Time Setting Residual Heat Indocator ON Time 1 minute 32 minutes 2 minutes 36 minutes 5 minutes 46 minutes 10 minut...

Page 38: ...ON NOTES A Duringcalibration dasheswill flash very quickly in the display If you are not attentive you will not see them flash B If you make a mistake or wait too longto enter a command the 7 segment...

Page 39: ...n continuously 4 Touch and release the POW ER pad P will flash on the display followed by an 8 P8 This indicates that the unit is in the P8 Menu mode 2 W hile touchingthe POW ER pad touch and hold the...

Page 40: ...nd then release both pads A flashing U will appear in the display The unit will beep and P8U will flash in the display Model CEP456 Model CEP365 Model CEP304 6 Place the calibration plates on the cook...

Page 41: ...er 4 Heat Setting pad then release the pads A flashing U will appear in the display When a beep sounds the unit is properly calibrated 8 Remove the calibration plates and store them in a safe place fo...

Page 42: ...CEM CET CEP Service Manual Wiring andVisuals Wiring andVisuals PAGE 40 https appliancetechmanuals com...

Page 43: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 41 https appliancetechmanuals com...

Page 44: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 42 https appliancetechmanuals com...

Page 45: ...A ECO 4 2 S2 4a P1 P2 S1 4 2 Pilot P1 4 2 S2 4a P1 P2 S1 4 2 Pilot P1 CEM304 ELEMENT HARNESS CONTROL WIRING ELEMENT HARNESS 5060002073 PIGGY BACK TERMINAL GOES HERE VIOLET GRAY BROWN BLACK BLACK BLAC...

Page 46: ...g and Visuals DOC 5060000000 Station 3 Date 08 08 01 Rev A ECO 4 2 S2 4a P1 P2 S1 4 2 Pilot P1 4 2 S2 4a P1 P2 S1 4 2 Pilot P1 CEM304 POWER HARNESS CONTROL WIRING POWER HARNESS 5060002076 P2 P2 PAGE 4...

Page 47: ...DOC 5060000000 Station 3 Date 08 08 01 Rev A ECO 4 2 S2 4a P1 P2 S1 4 2 Pilot P1 4 2 S2 4a P1 P2 S1 4 2 Pilot P1 CEM304 SWITCH LOCATION P2 P2 5060002152 5060002152 5060002151 5060002151 5060001634 506...

Page 48: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 46 https appliancetechmanuals com...

Page 49: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 47 https appliancetechmanuals com...

Page 50: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 48 https appliancetechmanuals com...

Page 51: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 49 https appliancetechmanuals com...

Page 52: ...2 01 Rev A ECO Assembly Veiw 4 2 S2 4a P1 P2 S1 4 2 S2 4a P1 P2 S1 4 2 S2 4a P1 P2 S1 4 2 Pilot 4 2 Pilot P1 P2 P1 P2 PILOT LIGHT 5060002152 5060002152 5060002152 5060002151 5060002151 5060001634 Wrap...

Page 53: ...uals CEM365 ELEMENT HARNESS WIRING DOC 5060000000 Station 3 Date 08 01 01 Rev A ECO Assembly Veiw 4 2 Pilot 4 2 S2 4a 4 2 Pilot 4 2 S2 4a 4 2 S2 4a 5060002152 5060002152 5060002152 5060002151 50600021...

Page 54: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 52 https appliancetechmanuals com...

Page 55: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 53 https appliancetechmanuals com...

Page 56: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 54 https appliancetechmanuals com...

Page 57: ...4 RESIDUAL LIGHT WIRING 4 2 2 4 DOC 5060000000 Station 4 Date 09 04 01 Rev A ECO RED 3 4 2 4 2 S2 4a P1 P2 S1 4 2 Pilot P1 4 2 S2 4a P1 P2 S1 4 2 Pilot P1 BROWN YELLOW BLACK RED BROWN BLACK YELLOW BLU...

Page 58: ...am CEP 30 X28 X13 X11 X21 X12 X14 X32 X10 X20 X22 X23X3 X1 X2 X25 X26 X24 X29 X27 Element Harness Element Harness DOC 5060000000 Station 3 Date 09 05 01 Rev A ECO BROWN BROWN ORANGE ORANGE GRAY GRAY Y...

Page 59: ...gram CEP 30 X28 X13 X11 X21 X12 X14 X32 X10 X20 X22 X23X3 X1 X2 X25 X26 X24 X29 X27 DOC 5060000000 Station 3 Date 09 05 01 Rev A ECO Power Harness Power Harness RED RED BLACK WHITE BLACK BLACK GREEN B...

Page 60: ...Left Yellow Rear Left Gray Rear Center Blue Rear Right Orange Front Right Pot Sensing Ckt Board CEP365 ELEMENT WIRING 4 1 2 3 4 2 2 4 BLUE YELLOW ORANGE YELLOW VIOLET BROWN GRAY GRAY BROWN Element Ha...

Page 61: ...2 X10 X31 X33 X20 X22 X23 X3 X1 X2 X25 X26 X24 X29 X27 X36 X38 X18 DOC 5060000000 Station 3 Date 09 04 01 Rev A ECO BROWN ORANGE BLUE ORANGE VIOLET YELLOW BROWN GREY VIOLET YELLOW BLUE YELLOW BROWN El...

Page 62: ...ement Harness DOC 5060000000 Station 2 Date 09 05 01 Rev A ECO FRONT RIGHT 1200W GRAY BLUE BROWN Power Harness Brown FL Yellow RL Gray RR Brown FR Pot Sensing Ckt Board 3 4 2 GRAY BROWN YELLOW VIOLET...

Page 63: ...32 X10 X31 X33 X20 X22 X23 X3 X1 X2 X25 X26 X24 X29 X27 X36 X38 X18 DOC 5060000000 Station 3 Date 09 12 01 Rev A ECO Power Harness P o w e r H a r n e s s Note This wire will be changed to a blue wire...

Page 64: ...32 X10 X31 X33 X20 X22 X23 X3 X1 X2 X25 X26 X24 X29 X27 X36 X38 X18 DOC 5060000000 Station 3 Date 09 12 01 Rev A ECO Power Harness P o w e r H a r n e s s Note This wire will be changed to a blue wire...

Page 65: ...R RIGHT 1800W FRONT RIGHT 1800W CEP456 ELEMENT WIRING BLUE YELLOW ORANGE VIOLET BLUE BLUE WHITE GRAY ORANGE BROWN YELLOW VIOLET GRAY BROWN BROWN BLUE BROWN GRAY GRAY VIOLET ORANGE YELLOW 2 4 4 2 3 2 3...

Page 66: ...gram CET 30 Power Harness X28 X13 X11 X21 X12 X14 X32 X10 X20 X22 X23X3 X1 X2 X25 X26 X24 X29 X27 DOC 5060000000 Station 3 Date 08 30 01 Rev A ECO Power Harness RED RED BLACK WHITE BLACK BLACK GREEN B...

Page 67: ...T365 ELEMENT WIRING 4 1 2 3 4 2 2 4 BLUE YELLOW ORANGE YELLOW VIOLET BROWN GRAY BROWN Element Harness DOC 5060000000 Station 2 Date 08 30 01 Rev A ECO Assembly Veiw 5060001642 Star Washer x6 Torque se...

Page 68: ...2 X14 X32 X10 X31 X33 X20 X22 X26 X24 X29 X27 X36 X38 X18 DOC 5060000000 Station 3 Date 09 04 01 Rev A ECO Note This wire will be changed to a blue wire Power Harness 5060001810 X23 X3 X1 X2 X25 RED R...

Page 69: ...am CET 30 Element Harness X28 X13 X11 X21 X12 X14 X32 X10 X20 X22 X23X3 X1 X2 X25 X26 X24 X29 X27 Element Harness DOC 5060000000 Station 3 Date 08 30 01 Rev A ECO GRAY GRAY VIOLET YELLOW ORANGE BROWN...

Page 70: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 68 https appliancetechmanuals com...

Page 71: ...CEM CET CEP Service Manual Wiring andVisuals PAGE 69 https appliancetechmanuals com...

Page 72: ...CEM CET CEP Service Manual Wiring andVisuals Electrical Schematic Drawing CET CEP 365 PAGE 70 https appliancetechmanuals com...

Page 73: ...CEM CET CEP Service Manual Wiring andVisuals Electrical Schematic Drawing CET CEP 304 PAGE 71 https appliancetechmanuals com...

Page 74: ...CEM CET CEP Service Manual Wiring andVisuals Electrical Schematic Drawing CEM 456 PAGE 72 https appliancetechmanuals com...

Page 75: ...CEM CET CEP Service Manual Wiring andVisuals Electrical Schematic Drawing CEM 304 PAGE 73 https appliancetechmanuals com...

Page 76: ...CEM CET CEP Service Manual Wiring andVisuals Electrical Schematic Drawing CEM 365 PAGE 74 https appliancetechmanuals com...

Page 77: ...CEM CET CEP Service Manual Wiring andVisuals Notes https appliancetechmanuals com...

Page 78: ...CEM CET CEP Service Manual Wiring andVisuals Notes https appliancetechmanuals com...

Page 79: ...CEM CET CEP Service Manual Wiring andVisuals Notes https appliancetechmanuals com...

Page 80: ...5551 McFadden Avenue Huntington Beach CA 92649 800 735 4328 5060008355 2002 BSH Home Appliances Corp Litho in U S A 11 02 https appliancetechmanuals com...

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