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Blodgett Combi BCX14G, Troubleshooting Manual

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Blodgett Combi BCX14G Troubleshooting Manual Download Page 47

BCX14G 

BCX14G HOT AIR FLOW CHART 

FIGURE 4 

26 

 
 
+24Vdc_H    
 

 

 

 

Logic Board 

       

24Vdc_Rtn_L 

 

       

J1   

 

 

           TMR1 

 

 

 

 

         

 

 

 

    

          

       

CR1     

 

 

 

       

 

    24Vdc_Rtn 

 

     A2             15

 

             

 

        

 

 

 

 
   

 

 

 

 

 

    

+24Vdc 

 

 

             

 
 

 

Oven On

   

 

    Oven_On_L 

 

 

 

 

 

 

 

 

 

        Logic Board

 

 

 

 

 

 Logic Board 

 

 

 

 

  

J4 

 

 1+3   

o      o

  #2 

        

J3 

 

 

 

 

 

Mode_Sw 

              5,7,9  

o

         

o 

#10   (J3-6) 

 

 

     Heat_Demand_In 

    

 

               

 

 

 

 

     

 

 

      (

Switch Closed

) 

 
 
 
 

 

 

   Logic Board 

 

 

      J2-1 

 

 

 

   

     

J1-4 Red 

 

 

 

   J1 Connector 

 
 
 
 
 

 

 

 

 

 

 

 

          

IFB 

 

 

Cavity_OverTemp_H_AC  

 

 

 

 

 

 

    

 

 

 

 

 

          o   

 

 

           Conv_Heat_Ena_L 

 

 

 

 

 

     

       o   24Acv_H 

 

 

 

 

 

          o          

 

 

 

   +24Vac_H 

 

 

 

 

 

 

 

 

 

 

  24Vac_Rtn_L 

 

 

 

 

 

 

 

 

 

 

 

      Pwr_On 

 

 

 

 

 

 

            U7  Ing_Mod 

 
 
 
     Heat_Demand     (

Active for standing Pilot

) 

 
 
 
      Steam_Demand 

 

 

 

 

 

             U8  Ing_Mod 

 

 

 
 
      Delime 
 

 

                

T1 

 

 

        Transformer 

 

 

        24Vac_Rtn 

 

 

 

 # 6 

 

 

 

 

 

  

 
J1-1 
 
 
J1-4 
 
J1-6 

 
Input 
Amber 
 LED 

# 6 & 

# 9 

 
 
 
#14 

24Vdc_Rtn 
 
 

 No 

                 Com 

Green 

Output 

LED  

# 13 

 

    J4-2 

J4-1 

          J1-7 
 
J4-3 
J4-4   J4-1 
J4-6   J4-2   

PV 
 
THS 
 
MV 
 
Sense 

PV 
 
THS 
 
MV 
 
Sense 

Main 
valve 

both 

burners 

P

V 

P

V 

 
 
24Dcv 
-       + 

 
 
24Acv 
-       + 

Summary of Contents for BCX14G

Page 1: ...G AND BX14G COMBINATION OVEN STEAMER TROUBLESHOOTING MANUAL BLODGETT COMBI www blodgett com 44 Lakeside Avenue Burlington Vermont 05402 USA Tel 802 658 6600 Fax 802 652 2814 PN 52051 Rev B 12 15 2010...

Page 2: ...ction Flow Chart 31 Drain Valve Troubleshooting Flow Chart 32 Logic Board LED Designations Flow Chart 33 34 IFB LED Designations Flow Chart 35 Point to Point Troubleshooting 36 38 Symbol Designations...

Page 3: ...be right angle 1K value At 75 1090 and at 300 1575 ohm s BX14G with MenuSelect Control Part number 50310 all the same as above for the BCX14G with MenuSelect Control BX14G BCX14G with the New Manual P...

Page 4: ...NOTE Model BX 14 ovens do not have a fill lamp 18 DELIME LAMP BCX 14 ovens only Flashes when steam generator deliming is needed Remains steady when deliming pro cess is active CLEAN LAMP BX 14 ovens...

Page 5: ...press the CLEAR STOP KEY When the timer reaches 00 00 the buzzer sounds Press the CLEAR STOP KEY 8 to si lence the buzzer Remove the product 5 9 PROBE COOKING 1 Press the TIMER PROBE key 7 to select...

Page 6: ...by more than 10 on time with the D Bake bagels without boiling By starting raw ba STEAM ON DEMAND TIMER 10 gels with 1 to 2 minutes of steam you can ON DEMAND SWITCH 11 achieve a beautiful crust The...

Page 7: ...nd Hold for 5 seconds and release 4 Press and hold for 5 seconds and release 5 Toggle until 2 X X X is displayed Where X X X are any number 6 Press and release PROBE LED will begin to Flash 7 Toggle o...

Page 8: ...ELIME LAMP BCX 14 ovens only Flashes when steam generator deliming is needed Remains steady when deliming pro cess is active 16 FILL LAMP illuminated until the steam gen erator is filled with water NO...

Page 9: ...r reaches 00 00 the buzzer sounds Press or rotate the TIMER PROBE KNOB 8 counter clockwise to silence the buzzer Remove the product PROBE COOKING 1 Press the TIMER PROBE knob 8 to select the probe set...

Page 10: ...oads such as 20 or more chick ens By starting large loads with 5 to 8 minutes of steam you help the oven recover and cut the cooking time by more than 10 D Bake bagels without boiling By starting raw...

Page 11: ...gnostics Press the Dial to Enter D 01 Is Displayed Cavity Heat Relay Press the Dial to Enter Turn Dial CW to ON Turn Dial CCW to OFF Press the Dial to EXIT CONTINUE FOLLOW STEPS ABOVE Scroll the Dial...

Page 12: ...mperature D 24 Quench Probe Temperature D 25 Core Probe Temperature D 26 Boiler Tank Temperature D 27 Main Switch D 28 Fan Feedback Input D 29 Cook Done relay D 30 Vent relay D 33 Cool Fan Relay D 34...

Page 13: ...View Turn Dial to F Press the Dial to Retune Turn Dial to P 02 CONTINUE FOLLOW STEPS ABOVE P Set To P 02 Cool Down Temp 100F P 03 Ready Beep ON P 04 Fan Reverse Time 6 00 P 05 Cook Done Beeper Yes P...

Page 14: ...eeper Yes Press Dial to Exit Scroll to END Press Dial to Exit End Of Factory Programming P 33 Setback time 0 00 P 34 Setback Temp 300F P 35 Setback Temp Delta 10F P 36 Download Factory Settings From S...

Page 15: ...amming 19 MAINTENANCE KEY press to enter manager programming and save programmed settings 20 ALPHA NUMERIC KEYPAD used to program recipes 21 POWER KEY used to place control in and out of standby mode...

Page 16: ...rm has a temperature limit of When the display flashes READY IDLE open the doors Load the product 6 Press the START STOP KEY 1 to begin the bake cycle The timer counts down and the display alternates...

Page 17: ...Air Combi or retherm modes the unit can be set to steam for a timed period of up to 20 minutes At the end of the timed cycle the unit reverts back to the original setting Steam On De mand can be used...

Page 18: ...ed press the dial to save the Programming a Product Recipe NOTE The control can hold 99 recipes Each rec ipe may have up to 6 cooking stages 1 Turn the dial to highlight the name of the prod uct to be...

Page 19: ...n to test Component Function Test Temp Heat Combi Fan Speed Gentle Fwd Fan Fan Speed Low Fwd Prog Fan Speed High Fwd Forward 1 Fan Speed Turbo Fwd 4 Fan Speed High Rev 7 Light Light Spritzer ESC Cooli...

Page 20: ...to be in the ON position Press the Maint Key Scroll to Factory Program Press the Dial to Enter Enter the Factory Code 3228 Press the Dial to Enter Scroll to Appliance Type Press the Dial to Enter Tur...

Page 21: ...ISPLAY displays information related to oven func tion and or programming 2 CORE PROBE CONNECTION plug core tempera ture probe in here when using probe cooking 3 USB Port and COVER Use to transfer reci...

Page 22: ...35 Operation SmartTouch Touchscreen Control for Model BX 14 BX 14 CNVX 14 MANUAL MODE COOKING 1 Select the POWER button to turn on the oven and proceed to the manual screen Figure 17...

Page 23: ...keypad provided Press SAVE EXIT to return to the manual cook screen Steam on Demand BX 14 only Press the Steam On Demand key and enter the desired time period of 100 humidity Press SAVE EXIT to retur...

Page 24: ...the pre pro grammed menu items Figure 19 3 Push the SELECT ITEM key in the top right corner of the screen BX 14 screen shown Figure 20 4 Select the desired food category for your product Figure 21 5 W...

Page 25: ...se start all or start individual shelves Figure 24 3 During the cook cycle individual shelf cook timers will count down as the product is cooked If you wish to cancel the bake you can press the STOP A...

Page 26: ...s in the menu mode Figure 26 2 Select the EDIT ITEMS icon to edit the menu items Figure 27 3 To edit an existing item select the item while the EDIT ITEMS key is highlighted To delete an Item select t...

Page 27: ...ll appear for you to input your value To add a step press the key icon To edit a step press the arrow keys on the bottom left hand corner of the screen to highlight the step you wish to edit Follow th...

Page 28: ...y Figure 31 3 To edit an existing category select the category while the EDIT key is highlighted To delete a category select the category while the DELETE key is highlighted To create a new category s...

Page 29: ...w more icon options press the arrow key Once the category icon is selected the category edit screen is displayed Press the DISK icon to save your changes Figure 34 6 To edit items within a category pr...

Page 30: ...esire a different setting within a step To edit a setting within a particular step press the icon for that setting A keypad will appear for you to input your value To add a step press the key icon To...

Page 31: ...the GHVLUHG QDPH 3UHVV 17 5 ZKHQ QLVKHG WR UHWXUQ to the previous screen 5 3UHVV 6 7 7 06 6HOHFW LWHPV WR EH OHG LQ WKH new category Items will be highlighted as they are selected Press ESC key to ret...

Page 32: ...s the TOOLS key Enter the code 6647 on the keypad Figure 39 3 Press the MANAGE MENU DATA key Insert the USB drive into the Intelliport To Store Menu Data to a USB 1 Press the STORE MENU DATA to USB ke...

Page 33: ...reen To Retrieve Menu Data from USB 1 Press the GET MENU DATA from USB key to transfer recipes from the USB Figure 43 2 7KH FRQWURO GLVSOD V DOO PHQX 018 OHV RQ WKH 86 GULYH 6HOHFW WKH GHVLUHG OH Figu...

Page 34: ...WN icon Figure 46 2 The oven will toggle between cooling and open door in yellow until the oven is cool Once cool the oven will go to standby NOTE If the oven is shut down with the circuit breaker swi...

Page 35: ...is is the next screen This gives you some information from your I O board about the number of cycles that have been recorded from certain components Press the ESC icon to back out of this screen and g...

Page 36: ...been recorded from certain components Press the ESC icon to back out of this screen and go back to screen 3 Screen Shot 7 Press the Test digital outputs button This is the next screen This gives you...

Page 37: ...3 Press the ESC icon twice to back out of this screen and go back to screen 1 Press the Test other outputs button This is the next screen This gives you the ability to selectively operate certain comp...

Page 38: ...avity and core probe temps As well as cavity and core probe offsets Options In this menu you can edit pass codes and edit menu keys Also add or hide icons Reload Default Menu DO NOT TOUCH Press the ar...

Page 39: ...Page 18 Notes...

Page 40: ...a High or Low input such as Oven_On_L for the low input and Door_Closed_H for a high input output 6 Acv Dcv See the incoming power supply flow chart FIGURE 1 NO OPERATION WITH THE MODE SWITCH IN COOL...

Page 41: ...D indicator inputs present at the IFB relay board looking for the CR3 relay LED D31 CR2 relay LED D21 and the 6 CR7 relay LED D71 should be on If not check IFB connector J7 between J7 1 to J7 2 for 24...

Page 42: ...cuit breaker back on and check for the fill light on the control panel and look at the logic board for LED indicators If LED s amber input 8 and green out put 15 are on this would indicate the LLC low...

Page 43: ...nal go to the steam on demand switch SW10 and check for a 24Dcv_Rtn_L signal at BK 7 of the switch to Logic Board J1 connector J1 4 NO DELIME PUMP OPERATION 1 The delime pump can be tested with the ov...

Page 44: ...Vdc Rtn Logic Board J1 Conn Incoming powers from the DC power supply control B 24Vdc J1 4 Red J1 TMR1 Timer P1 J1 A2 P1 Oven_On_L 1 3 2 Logic Board 0 0 J1 6 Logic Board J3 5 7 9 0 0 6 Combi J3 1 J1 4...

Page 45: ...Trouble shooting test points Your volt meter leads should insert right into the LH side of the J1 connector through a hole provided from the factory for test points This connector will provide the bes...

Page 46: ...onnector 24Dcv_Rtn_L 24Dvc_Rtn_L Switch Closed 1 3 4 Mode_Sw J1 4 J1 Connector Logic Board Inverter Drive 24Dcv_L MOTOR ACV NEU 1 2 3 4 5 L J3 1 Motor_Fwd_Ena J3 2 Motor_Rev_Ena J3 3 Spd_Sel_0 J3 4 Sp...

Page 47: ...ed Logic Board J2 1 J1 4 Red J1 Connector IFB Cavity_OverTemp_H_AC o Conv_Heat_Ena_L o 24Acv_H o 24Vac_H 24Vac_Rtn_L Pwr_On U7 Ing_Mod Heat_Demand Active for standing Pilot Steam_Demand U8 Ing_Mod Del...

Page 48: ...witch Closed Logic Board J2 1 J1 1 BK J1 Connector IFB Boiler_OverTemp_H_AC o Boiler_Ena_L o 24Acv_H o 24Vac_H 24Vac_Rtn_L Pwr_On U9 Ing_Mod Heat_Demand Active for standing pilot Steam_Demand Delime T...

Page 49: ...de_Sw 5 7 9 o o 6 J3 1 Heat_Demand_In_L J2 1 IFB Heat_Ena_L Cavity_OverTemp_H_AC o o 24Acv_H o 24Vac_H 24Vac_Rtn_L Pwr_On U7 Ing_Mod Heat_Demand Steam_Demand U8 Ing_Mod Delime J1 1 J1 4 J1 6 Input Amb...

Page 50: ..._H Door_Sw_Rtn_L Door_Closed_H J1 1 BK J1 Connector Logic Board BK J5 Connector BR BL Output when door is closed Switch will be lighted Logic Board J1 Connector J1 1 BK 24Dcv_H TMR1 IFB 13 Y 10 Door_C...

Page 51: ...J8 4 J8 5 J8 6 The Flats are normally closed and open when the boiler is full 24Dcv should always be applied to the float wires R 15 that activates the fill solenoid s relay at the IFB which applies a...

Page 52: ...Rtn_L 1 3 2 Mode_Sw 18 15 16 A2 A1 J1 J1 3 24Dvc_L J1 4 Door_Closed_H J2 J1 1 Inverter Drive CR1 GY 12 24Dcv_L 14 13 MOTOR ACV NEU 1 2 3 4 5 L J3 1 Motor_Fwd_Ena J3 2 Motor_Rev_Ena J3 3 Spd_Sel_0 J3 4...

Page 53: ...osed position should always have 24Dcv_Rtn_L input along with the 24Dcv_H out put from the IFB J8 connector to the motorized drain valve The drain valve opens when the 24Dcv_H switches from J8 8 to J8...

Page 54: ...l Enable J2 3 15 Boiler Fill Enable J2 3 16 Delime Solenoid J2 5 16 Delime Solenoid J2 5 17 Spare Output J3 5 17 Spare Output J3 5 HOT AIR MODE LED S STEAM MODE LED INDICATORS LED On INPUT LED On INPU...

Page 55: ...l Enable J2 3 15 Boiler Fill Enable J2 3 16 Delime Solenoid J2 5 16 Delime Solenoid J2 5 17 Spare Output J3 5 17 Spare Output J3 5 DRAIN VALVE OPEN LED S ACTIVE DELIME PUMP LED LED On INPUT LED On INP...

Page 56: ...ger Door Closed J2 1 24VDC Output J5 5 24VDC Input Trigger 1 1 1 1 1 1 1 1 D31 D21 D11 D41 D51 D61 D9 D101 D81 D71 D8 2 2 Note The red momentary button next to D101 manually opens the drain D9 Quench...

Page 57: ...3 24VDC Output to the Relay Board when the Low Water Signal is present LED 8 or the Heat Steam or Hot Air is Selected Amber LEDs glow to show Inputs LED 1 Flush Disable Combi Preheat J1 2 24VDC Input...

Page 58: ...Board BK 12 4 Motor Speed Inverter to Inverter Terminal 3 J1 Connector J1 4 RD 1 24 VDC BCX2 Logic Board GY 17 5 Motor Speed Inverter to Inverter Terminal 2 J1 Connector J1 4 RD 1 24 VDC BCX2 Logic Bo...

Page 59: ...ector J4 1 V 6 J1 Connector J1 4 RD 1 24 VDC 3 BCX2 Logic Board J4 Connector J4 2 Y 1 J1 Connector J1 4 RD 1 24 VDC 4 BCX2 Logic Board J4 Connector J4 6 BL 2 J1 Connector J1 4 RD 1 Active 25 24 VDC 5...

Page 60: ...Y 9 J8 Connector J8 1 RD 4 24 VDC Drain Valve Closed 3 IFB Relay Board J8 Connector J8 8 OR 17 J8 Connector J8 1 RD 4 0 VDC Drain Valve Closed 4 IFB Relay Board J8 Connector J8 8 OR 17 J8 Connector J8...

Page 61: ...7 Steam On Demand Potentiometer RT1 Thermistor 5 Ohm 25C SW1 Mode Selector Switch SW2 Light Switch SW3 Vent Switch SW4 Cavity Boiler High Limit SW6 Heat Cut off Switch SW7 Flush Disable Switch SW8 Doo...

Page 62: ...Page 40 Notes...

Page 63: ...once F 0 3 FUNC once FUNC once once 0 1 keep pushing until 1 2 0 STR to save A 5 1 STR to save F 0 3 once A 5 2 keep pushing until d 0 1 FUNC once FUNC Programming Complete 0 0 push hold until 1 0 0 S...

Page 64: ...ent during deceleration E_03 Over current event during acceleration E_04 Over current event during other conditions E_05 Overload protection E_07 Over voltage protection E_08 EEPROM error E_09 Under v...

Page 65: ...45...

Page 66: ...46...

Page 67: ...Check for ohm s 75 1090 Display reads E r r 3 indicates open or shorted meat probe If it is plugged in at the time check to see if the meat probe has been activated with out a meat probe in jack Meat...

Page 68: ...12 E 13 E 14 E 15 E 16 E 17 E 18 Cavity Probe open shorted Boiler Probe open shorted High Float switch Low Float switch Communication Error Cooling Fan Probe Error Delime Cavity Hi Limit Boiler Over...

Page 69: ...RROR COMM ERROR COMM ERROR and flash call for service ERROR CAVITY PROBE CAVITY PROBE ERROR and call for service ERROR CAVITY HI TEMP CAVITY HI TEMP ERROR and call for service ERROR BOILER HI TEMP BOI...

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