Bosch Divar 700 Series, Service Manual

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Page 4: ...Heating elements BSH series 700 convection system FULGOR ELETTRODOMESTICI SpA ...

Page 5: ...ing and holds an optimum low temperature while circulating the heated air to remove moisture slowly for food preservation BAKE and WARMING Baking is cooking with heated air Both the upper and lower element cycle to maintain the oven temperature In the Warming mode the oven will use the lower element to maintain a low temperature to keep food at serving temperature BROIL Broiling uses intense heat ...

Page 6: ...Upper Cancel Light Time Cooking Mode 1 Double Oven Control Panel Lower Cancel Upper Lower Start Temperature 2 2 3 4 5 8 6 7 9 ...

Page 7: ...Single Oven Control Panel Light Time Cooking Mode 8 1 Cancel Start Temperature 6 7 9 3 4 5 ...

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Page 9: ...ight or left to quickly move the clock time forward or backward by 10 minute increments Continue to rotate knob until correct AM or PM is selected 5 After the initial move of the knob to either the right or left turn the knob in the opposite direction to change the time by 1 minute increments 6 Touch START The clock is now set If operation is not completed the oven will beep periodically as a remi...

Page 10: ... Display timer will begin flashing and CHANGETIMER will appear in display 2 TouchTIME again and TIMER will appear in display below clock time Oven timer will begin flashing 9 31 TIMER 2 Turn knob to change set time 0 34 CHANGE TIMER HR MIN TIMER 3 Touch START 4 If START is not touched oven will begin beeping timer display will begin flashing and PRESS START will appear in display 2 Turn knob once ...

Page 11: ...minder and PRESS STARTwill appear in display and temperature will flash TO SET A COOKING MODE 1 For double ovens touch UPPER LOWER to select the upper oven or lower oven The selected oven will be highlighted in the display 2 Touch COOKING MODE 3 The last mode used will flash in the display The default temperature for that mode will also be displayed When the oven is operating the selected cooking ...

Page 12: ...beeps will sound for up to fifteen minutes until any pad is touched 8 To check the cooking time and stop time after a delay has been set touch COOKING MODE 8 30 AM STOPTIME CONVECTION ROAST 400ºF 7 09 PM STOPTIME CONVECTION ROAST 400º F 0 00 COOK TIME CONVECTION ROAST 400ºF 4 Touch START 5 The clocktime will be displayed and DELAY appears in the display 4 Turn knob to enter cooking time Keep in mi...

Page 13: ...t or Centigrade 7 CLOCK FORMAT 12 hr or 24 hr 8 BEEPVOLUME decrease or increase loudness of oven beeps 9 VIEW CLOCK yes or no 10 DEFAULT DATA change all feature settings back to original factory settings Tips on Using Special Features There will be a slight delay before each message or feature can be seen in the display Turn knob slowly one click then wait approximately one second for display to s...

Page 14: ...or 4 hours for heavy soil immediately before starting To change hours touch TIME twice Number of hours to clean will flash in display Rotate knob to select number of hours 5 51 STOPTIME CLEAN 6 Oven door will lock and display shows DELAY 7 At the end of the programmed cleaning time the oven will automatically turn off 8 To cancel or stop the mode after the lock symbol is displayed touch UPPER CANC...

Page 15: ... process wilI not clean the gasket Particles or dust between the glass Iayers of the door window can only be cleaned after disassembling of the complete door This operation should only be done by an authorized service technican The front surface of the unit should be cleaned only with soapy water and a rag or sponge Stainless steel panels must be carefully cleaned with a soft damped rag or sponge ...

Page 16: ...or probe cooking a BAKE b CONVECTION BAKE c CONVECTION ROAST d FAST PREHEAT BAKE e FAST PREHEAT CONVECTION BAKE 4 Press once Temperature key to change the probe temperature set point twice to change the cavity temperature set point The icon is flashing while the probe temperature is in edit mode Set the desired values by rotating the knob CW or CCW then press Start to accept the cooking mode 5 As ...

Page 17: ...d 245 475 60 52 7 Self Clean Full 60 12 43 60 2 8 Warming Low Power Bake 3 75 170 60 40 Preheat cycle Full 175 350 60 60 60 9 Fast Preheat Bake Normal cook cycle 175 350 60 40 12 Preheat cycle Full 160 325 60 60 60 10 Fast Preheat Convection Bake Normal cook cycle Reduced 160 325 30 30 NOTE 1 The control will follow the on time ratio for the particular cookmode when cooking NOTE 2 The additional e...

Page 18: ...00 01 40 00 03 20 00 05 00 00 06 40 00 08 20 00 10 00 00 11 40 00 13 20 00 15 00 00 16 40 00 18 20 00 20 00 00 21 40 00 23 20 00 25 00 00 26 40 00 28 20 00 30 00 00 31 40 00 33 20 00 35 00 00 36 40 00 38 20 00 40 00 00 41 40 00 43 20 00 45 00 00 46 40 time hr min sec Temperature C BakeCentre BakeSensor FPBakeCentre FPBakeSensor Setpoint ...

Page 19: ...irst start a Bake in the lower one then start Sabbath in the upper one Both will run Sabbath mode When Sabbath is running no work requirements are 1 Working fan is disabled 2 Light switching is not possible even when opening the door 3 Latch motor is disabled 4 No beep tones are allowed 5 The display is prevented from changing messages flashing etc 6 Keys are disabled with the exception of Cancel ...

Page 20: ...isplay Board with all its power lines It manages the latch the heaters the auxiliary loads following the Display Board indications It measures the temperature read by the sensor 3 HEATING ELEMENTS nominal power at 240V a UPPER ELEMENT 3500W b LOWER ELEMENT 3000W c RING ELEMENT 2500W d ADDITIONAL ELEMENT 1000W 4 AUXILIARY RELAY BOARD It s mounted on the front panel It provides the working fan dual ...

Page 21: ...emperature safety thermostat during self clean 7 TOUCH KEYBOARDS They can be 6 pads single oven or 8 pads double oven They are glued on the front panel glass 8 ROTARY SWITCH It s activated through the knob on the front panel The control detects rotation verse and number of ticks 9 TEMPERATURE SENSORS They are mounted inside the cavity fixed from the outside on the rear wall The only mean to measur...

Page 22: ...12 MEAT PROBE The oven is provided with a meat probe which needs only to be plugged in its receptacle on the cavity left side wall ...

Page 23: ...ing Each latch takes about 30sec to run the test If the control can t complete this test power down the oven search for a hardware fault and remove it 2 BY PASSING LATCH TEST If there is any reason to by pass the latch test at power up simply keep the Start key pressed until the clock is displayed 3 OVEN MODEL SELECTION OR MANUAL TEST If you intend to enter this special sections never press Cookin...

Page 24: ...he writing MANUAL TEST is displayed To reconfigure the oven model as a different double 1 Press Cooking Mode key 2 Turn the knob to select the correct oven model N MOD DISPLAY OVEN MODEL 1 C 30 CONVECT 2 30 DOUBLE OVEN MULTIFUNCTION MULTIFUNCTION 3 D 30 THERMAL 2 30 DOUBLE OVEN MULTIFUNCTION THERMAL 5 G 27 CONVECT 2 27 DOUBLE OVEN MULTIFUNCTION MULTIFUNCTION 7 H 27 THERMAL 2 27 DOUBLE OVEN MULTIFU...

Page 25: ...ifunction IMPORTANT ALWAYS KEEP PRESSED START KEY AT FIRST POWER UP ON A SINGLE OVEN UNTIL THE CLOCK IS DISPLAYED Otherwise the control will try to run the latch auto test but missing one cavity it will never be able to complete it At first power up the control realizes that one cavity is missing the display shows a calibration error message Ignore it and proceed with the MANUAL TEST ACCESS PROCED...

Page 26: ...FUNCTION 6 F 27 THERMAL 1 27 SINGLE THERMAL 3 To confirm the selection a If the Display Board is still configured as a double KEEP THE START KEY PRESSED UNTIL THE CLOCK APPEARS ON THE DISPLAY The control resets itself b If the Display Board is already configured as a single press the Start key to accept the new selection the control sounds a tone Press then Cooking Mode key again to quit the oven ...

Page 27: ...to power then to access this option follow the procedure below 240V 208V POWER SELECTION 1 Open the oven door upper oven for double 2 Turn the knob 6 detents CW 3 Turn the knob 9 detents CCW 4 Press Start key 5 240 SELECTED is displayed or 208 SELECTED 6 Press Cooking Mode key to change selection 7 Touch Start key to confirm the new selection ...

Page 28: ...D OUTPUT 1 UPPER UPPER ELEMENT Upper element 3500W at 240V 2 UPPER LOWER ELEMENT Lower element 3000W at 240V 3 UPPER RING ELEMENT Ring element 2500W at 240V 4 UPPER ADDITIONAL ELEMENT Additional element 1000W at 240V 5 UPPER LIGHT Oven lights are activated 6 UPPER CONV FAN LO Working fan at low speed 7 UPPER CONV FAN HI Working fan at high speed 8 UPPER COOLING FAN Cooling fan at ordinary speed ...

Page 29: ...E R LOWER ELEMENT Lower element 3000W at 240V 11 LOWE R RING ELEMENT Ring element 2500W at 240V 12 LOWE R ADDITIONAL ELEMENT Additional element 1000W at 240V 13 LOWE R LIGHT Oven lights are activated 14 LOWE R CONV FAN LO Working fan at low speed 15 LOWE R CONV FAN HI Working fan at high speed 16 LOWE R COOLING FAN Cooling fan at ordinary speed ...

Page 30: ...ty lights turn on it means that the control has detected a change Close the door the lights must turn off If the lights don t turn on try to press the Light key and be sure to hear a key pressed tone If the lights still remain off they are probably broken If no tone is heard then the Light key is not working 3 Keyboard and thermal cavities Select the lower cavity by pressing Upper Lower key until ...

Page 31: ...e temperature edit state probe icon and temperature flash b Twice to edit the cavity temperature temperature flashes When probe cooking is running the actual probe temperature is displayed 5 Time key knob Press Time key TIMER is displayed Press it once again in the time area 0 00 starts flashing Turn the knob 5 detents CW and check that time increments by one each detent until 0 05 is displayed th...

Page 32: ...h all its power lines It manages the latch mechanism the heaters the oven lights and the fans according to the Display Board indications It measures the temperatures read by the RTD sensors in the cavities 4 AUXILIARY RELAY BOARD It s mounted on the front panel It provides the Double Line Break feature for Canadian requirements and for the double oven only the working fan high speed 5 2ND THERMOST...

Page 33: ...ECHANISM A motor is activated to lock the door as soon as self clean starts When clean stops the control wait for the cavity cooling down below the temperature threshold The same motor moves to unlock the door 12 COOLING FAN It works at two different speeds in self clean and ordinary cooking modes A resistor in series reduces the voltage on the fan motor and consequently it lowers the fan speed Wh...

Page 34: ...th the latch positioning the best thing to do is turn off the oven wait at least for one minute before re powering the unit to cause a system reset and run a complete latch lock unlock cycle 3 AVOIDING LATCH AUTO TEST AT POWER UP For whatever reason if the technician prefers to skip the latch auto test at power up he just needs to keep the START key pressed while supplying the oven with power unti...

Page 35: ... The DBL SGL transition occurs only once The transition SGL DBL is never allowed Once a Display Board has been already re configured as a SGL the transition SGL SGL is also possible WARNING ALWAYS KEEP PRESSED START KEY WHEN YOU FIRST POWER UP THE OVEN UNTIL THE CLOCK IS DISPLAYED Single Oven this action prevents the control from running the power up latch auto test and it s absolutely important w...

Page 36: ...s a double at this point Only on a single oven missing the lower cavity the following error messages will be displayed Ignore it and enter the MANUAL TEST through the following procedure MANUAL TEST ACCESS PROCEDURE both for DBL and SGL 1 Press CANCEL key 2 Turn the knob 4 detents CW 3 Turn the knob 6 detents CCW 4 Press START key The writing MANUAL TEST is displayed Now press Cooking Mode key the...

Page 37: ...VECT 2 27 DOUBLE OVEN MULTIFUNCTION MULTIFUNCTION 7 H 27 THERMAL 2 27 DOUBLE OVEN MULTIFUNCTION THERMAL N MOD DISPLAY SINGLE OVEN MODELS 0 A 30 CONVECT 1 30 SINGLE MULTIFUNCTION 2 B 30 THERMAL 1 30 SINGLE THERMAL 4 E 27 CONVECT 1 27 SINGLE MULTIFUNCTION 6 F 27 THERMAL 1 27 SINGLE THERMAL KEEP THE START KEY PRESSED DBL SGL transition the Display Board resets itself Wait for the clock on the display...

Page 38: ...the double oven 3 The last saved fault number whereas F000 means no faults saved 4 C2K2EAC means Copyright 2002 Emerson Appliance Controls POWER SUPPLY SELECTION The oven provides a 208V power supply option for areas where the standard 240V is not available First connect the oven to power then to access this option follow the procedure below 240V 208V POWER SELECTION 1 Open the oven door upper ove...

Page 39: ...6 WIRES CUT OR PINCHED TO DEAD METAL PARTS FAULT CAUSE ACTION F31 UPPER OR SINGLE OVEN TEMPERATURE SENSOR FAILURE 1 Check connections between P4 on the Power Board and the RTD sensor 2 Unplug the sensor connector and check its resistance approximately 1080 ohms at room temperature with connector removed Remember to reconnect it 3 Replace Power Board F32 LOWER OVEN TEMPERATURE SENSOR FAILURE 1 Chec...

Page 40: ...ard and the latch switches 2 Ensure door latch switches are operating properly 3 Check connections between P10 connector and the latch motor 4 Replace Power Board F43 UPPER OR SINGLE OVEN LATCH WILL NOT UNLOCK 1 Check connections between P4 connector on the Power Board and the latch switches 2 Ensure door latch switches are operating properly 3 Check connections between P10 connector on the Power ...

Page 41: ...rd and the latch motor 4 Replace Power Board F46 LOWER OVEN LATCH BOTH LOCKED AND UNLOCKED 1 Check P24 connector on the Power Board 2 Ensure door latch switches are operating properly 3 Check that neither latch switch nor common wires are pinched to the appliance chassis 4 If F46 persists replace Power Board F111 UPPER OR SINGLE OVEN 650 F RUNAWAY CONDITION 1 Oven too hot Allow oven to cool down 6...

Page 42: ...he upper or single oven sensor connector and check sensor resistance approximately 1080 ohms at room temperature with connector removed 3 Check wiring to heating element If OK replace Power Board F114 LOWER OVEN 950 F RUNAWAY CONDITION 1 Check P24 connector on the Power Board 2 Unplug the sensor connector and check lower sensor resistance approximately 1080 ohms at room temperature with connector ...

Page 43: ...P5 2 If OK replace keyboard or Display Board or both F127 CANCEL KEY REDUNDANT RETURN PROBLEM 1 Check all connections between keyboard J1 and Display Board P5 2 If OK replace keyboard or Display Board or both F141 SLAVE MICRO NOT FUNCTIONING 1 Check power and Display Board connectors P1B and associated wiring 2 If OK replace Power Board 3 If fault persists replace Display Board F143 VCC OPEN CIRCU...

Page 44: ...IBRATION VALUES OUT OF RANGE 1 Check power and Display Board connectors P1B and associated wiring 2 If OK replace Power Board 3 If fault persists replace Display Board F155 CORRUPTED EEPROM 1 If the fault message is displayed at power up ignore it Sometimes at power down the control saves the current time but fails to calculate and write the checksum in its memory At the following power up a fault...

Page 45: ... on the cavity left sidewall They may be shorted for example through the aluminum foil around the insulating material or have a loose contact The symbol is always displayed The symbol is displayed when the door is fully unlocked The symbol isn t displayed when the door is fully locked LOCK SYMBOL The symbol is blinking irregularly regardless of the latch position 1 Check connections between the la...

Page 46: ... knob 3 Replace the Display Board KNOB Increment and decrement rotations are reversed Check connections between P8 on the Display Board and the knob OVEN LIGHTS Lights never turn on 1 Check connections P11 on the Power Board 2 Check the transformer particularly the fuse on the secondary winding 3 Check the lamps themselves 4 Replace the Power Board COOLING FAN It works even if no cooking modes are...

Page 47: ...r SGL on the Power Board 2 Check R2 39Ohms resistor in series with the fan coil 3 Check the connections with the Auxiliary Relay Board P2 4 Replace the Auxiliary Relay Board or the Power Board if relay outputs don t work HEATERS All the heaters in one cavity never turn on 1 Check connections particularly the safety thermostats circuit in series with L2 black wire and the common L1 red wire on the ...

Page 48: ...ce the Power Board The Display Board doesn t turn on no beep tone is heard at power up 1 Check Power supply connection on the Power Board P18 for double oven P5 for single oven 2 Check the cable in the Display Board ó Power Board P1B table and verify the communication lines between the two boards 3 Check the cable in the Display Board ó Power Board P1A table and verify the voltages If voltage line...

Page 49: ... the memory circuit or during data transmission between the two boards Replace the Power Board 2 If the problem persists replace the Display Board too This message is also displayed at first power up when a Display Board still configured as a double is installed in a single oven before being re configured BAD TEMPERATURE PROFILE In both cavities the temperature curves can t reach steady conditions...

Page 50: ...ween display board and keyboard see that line 2 is the only one shared by these keys Check the corresponding wire and its terminal in the connector before replacing the electronic boards 2 The VFD display never turns on Check pins 1 2 3 on the cable between Power and Display Boards 3 The buzzer doesn t beep Check pin 4 wire and terminals of P1A cable CONNECTION CABLE BETWEEN POWER AND DISPLAY BOAR...

Page 51: ... RELAYS ON THE POWER BOARD AND THE DLB RELAY ON THE AUX BOARD WITH POWER THIS LINE IS FOR UPPER CAVITY ONLY 6 RELAY ENABLE 2 PROVIDES BOTH CAVITY LATCH MOTOR RELAYS WITH POWER 7 RELAY ENABLE 3 PROVIDES THE HEATERS RELAYS ON THE POWER BOARD AND THE DLB RELAY ON THE AUX BOARD WITH POWER THIS LINE IS FOR UPPER CAVITY ONLY 8 NOT USED 9 LOWER DOOR SWITCH THE DOOR SWITCH LINE IS ROUTED ACROSS THE POWER ...

Page 52: ... OCCUR 2 SINCRONIZZAZIONE 60HZ 3 RX COMMUNICATION LINE BETWEEN POWER AND DISPLAY BOARD 4 TX COMMUNICATION LINE BETWEEN POWER AND DISPLAY BOARD 5 RELAY ENABLE 2 PROVIDES CAVITY LATCH MOTOR RELAY WITH POWER 6 RELAY ENABLE 1 PROVIDES THE HEATERS RELAYS ON THE POWER BOARD AND THE DLB RELAY ON THE AUX BOARD WITH POWER 7 NOT USED 8 WORKING FAN HIGH SPEED ACTIVATES THE CAVITY WORKING FAN SECOND SPEED 9 N...

Page 53: ... CABLE BETWEEN POWER AND AUXILIARY BOARD P3 5POS PIN FUNCTION NOTES 1 UPPER RELAY ENABLE ACTVATES DLB RELAY K3 AND ENABLE UPPER WORKING FAN HIGH SPEED 2 NON USATO 3 GND GROUND VOLTAGE REFERENCE FOR RELAY DRIVING 4 GND GROUND VOLTAGE REFERENCE FOR RELAY DRIVING 5 LOWER RELAY ENABLE ACTVATES DLB RELAY K4 AND ENABLE LOWER WORKING FAN HIGH SPEED CONNECTION CABLE BETWEEN POWER AND AUXILIARY BOARD P1 PX...

Page 54: ...RN LINE FOR UPPER CANCEL COOKING MODE KEYS 4 7 RETURN 2 RETURN LINE FOR UPPER LOWER TEMPERATURE START KEYS 5 6 RETURN 1 RETURN LINE FOR LOWER CANCEL LIGHT TIME KEYS 6 5 RETURN 4 ADDITIONAL SAFETY RETURN LINE FOR ALL CANCEL KEYS 7 4 STROBE 3 STROBE LINE FOR TIME START KEYS 8 3 STROBE 2 STROBE LINE FOR COOKING MODE TEMPERATURE LIGHT KEYS 9 2 STROBE 1 STROBE LINE FOR UPPER CANCEL UPPER LOWER LOWER CA...

Page 55: ...D SENSE FEEDBACK 3 8 RETURN 3 RETURN LINE FOR COOKING MODE KEY 4 7 RETURN 2 RETURN LINE FOR CANCEL TEMPERATURE START KEYS 5 6 RETURN 1 RETURN LINE FOR LIGHT TIME KEYS 6 5 RETURN 4 ADDITIONAL SAFETY RETURN LINE FOR CANCEL KEY 7 4 STROBE 3 STROBE LINE FOR TIME START KEYS 8 3 STROBE 2 STROBE LINE FOR COOKING MODE TEMPERATURE LIGHT KEYS 9 2 STROBE 1 STROBE LINE FOR CANCEL KEY 10 1 GND GROUND VOLTAGE R...

Page 56: ...wo situations 1 The heaters are disabled in the cavity with the lower set point Now the temperature in this cavity drops down while in the opposite the heaters continue to work correctly 2 Every second the control checks if the short conditions are still present and increments a counter When this counter overtakes its threshold value a F145 fault is generated and both cavities are switched off As ...

Page 57: ... self clean after power recovering the control can t know if the sensors were previously shorted The latch auto test cycle is suspended until the temperature drops down below 200 F in both cavities The display shows the message UNLOCKING DOOR Pull in voltage for relays All the relays used to drive the heaters or the auxiliary loads are 24Vdc The Power Boards provide the relays with a 30V pull in v...

Page 58: ...ble Actually the temperature regulation is based on the off time between two cycles The control can decide to run heaters cycle without any pause if the temperature is cool or not to run any cycle if the oven is already at the set point and the insulation is good enough to prevent the oven from loosing heat These two situations are the extreme ideal ones The additional element is used only in self...

Page 59: ...cle Full 2 Convection Bake Normal cook cycle Reduced 160 325 30 30 3 Dehydrate Low Power Convection Bake Full 60 140 30 30 Preheat cycle Full 4 Convection Roast Normal cook cycle Reduced 160 325 60 40 12 5 Broil Level 3 60 LEVEL 1 11sec LEVEL 2 21sec LEVEL 3 31 sec LEVEL 4 42sec LEVEL 5 52sec Preheat cycle Full 6 Convection Broil Normal cook cycle Reduced 245 475 60 52 7 Self Clean Full 60 12 43 6...