Blodgett BCX-14E Service Manual

COMBI

X14E, BX14E,

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

52308 Rev B (12/15/2010)

TABLE OF CONTENTS

Section 1 Controls

Standard Control Operation……………………………………………………………. 1-3

Standard Control Second Level Programming…………………………………………... 4

New Manual Control Operation……………………………………………………….. 5-7 New Manual Second Level Programming ……………………………………………...8-9 New Manual Control Factory Level Programming…………………………………. 10-11 MenuSelect Control Operation……………………………………………………….12-15 MenuSelect Control Second Level Programming……………………………………16-17

Notes……………………………………………………………………………………..18

Section 2 BCX14E Troubleshooting

Troubleshooting Guide……………………………………………………………….19-22 Incoming Power Supply ………..…………………………….………………………….23 Logic Board Dcv Test Points ………..…………………………………….…………….24 Cool Down Flow Chart ………..……………………………….………………………..25

Hot Air Operation Flow Chart ……….………………………………………………….26

Steam Operation Flow Chart ……….…………………………………………………...27

Combi Mode Operation Flow Chart ……….……………………………………………28 Door Switch Troubleshooting Flow Chart ………..……………………………………..29 Float Switch Troubleshooting Flow Chart ………..……………………………………..30 Convection Motor Direction Flow Chart ………………………………………………..31

Drain Valve Troubleshooting Flow Chart ...............................………………………….32

Logic Board LED Designations Flow ………………....…………………………….33-34

IFB (LED) Designations Flow ……………..………………………………....................35

Point to Point Troubleshooting……………………………………………………….36-39

Symbol Description ...…………………………………………………………………...40

Notes……………………………………………………………………………………..41

Section 3 Convection Motor Inverter Troubleshooting

Manual Control Inverter Programming………………………………………………42-43

enuSelect/New Manual Control Inverter Programming..………………………….44-45

Inverter Fault Codes and Stored Fault Codes ………………………………………46-47

Section 4 BCX14E Wire Schematics

Manual Control W-Floats 208V-240V P/n 50277…………..……..…………………….48 Manual Control W-Level Board 208V-240V P/n 52854 ………….…………………….49

New Manual Control W-Level Board 208V-240V P/n 53851…………..………………50 MenuSelect Control W-Floats 208V-240V P/n 51409…………..………………………51

MenuSelect Control W-Level Board 208V-240V P/n 52856....…………………………52

MenuSelect Control W-Level Board 480V P/n 53852…………………………………..53

Section 5 BX14E Wire Schematics

New Manual Control 208V-240V P/n 53855……………………………………………54 MenuSelect Control 208V-240V P/n 51284……………………………………………..55

Section 6 Error Codes

Manual Control Error Codes……………………………………………………………..56

New Manual Control Error Codes……………………………………………………….57 MenuSelect Control Error Codes………………………………………………………...58

Lit-Sheets

L-927 Control panel LED Light Replacement……………………………………………... L-938 Manual Control Water Sensor Upgrade Kit………………………………………… L-939 MenuSelect Control Water Sensor Upgrade Kit……………………………………. L-949 Element Drip Deflector Kit P/n 53550………………………………………………

Probe Chart

BCX14G with Manual Control

Part number 39800 located at the rear of the oven cavity below the blower motor a two wire probe 1K value. At 75° 1090 ohm’s and at 300° 1575 ohm’s

BCX14G with MenuSelect Control

Part number 50310 located at the rear of the oven cavity below the blower motor a two wire probe 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)

Part number 50310 all the same as the above for MenuSelect Controls.

(BX14G) with Manual Control

Part number 50636 located at the rear of the oven cavity below the blower motor a 4 wire probe 1K value. At 75° 1090 ohm’s and at 300° 1575 ohm’s

Meat Probes

All Controls use the same Meat probes

Part number 39797 a 6” removable probe the plugs into the blue meat probe jack at the bottom of the control panel.

This is a 1K probe at 75° 1090 ohm’s and at 300° 1575 ohm’

Operation

Standard Controls for Models BCX 14 and BX 14

CONTROLS IDENTIFICATION

1. POWER ON LAMP - when lit indicates power to the unit is turned on.

2. MODE SELECTOR SWITCH - tur ns power to the oven on or off. Allows selection of Steam, Hot Air, Combi or Cool Down Modes.

3. TEMPERATURE DIAL - used to set desired cooking temperature.

4. DISPLAY - displays time and temperature in formation.

5. UP & DOWN ARROW KEYS - press to enter values in the display.

6. ACTUAL TEMP KEY - press to display the actual probe temperature during core cooking or actual cavity temperature in timer mode.

7. TIME/PROBE TOGGLE KEY - used to select either timer or probe cooking.

8. CLEAR/STOP KEY - use to clear or stop the timer and silence the buzzer.

9. START KEY - press to start the timer.

10. STEAM ON DEMAND TIMER - used to set duration for steam on demand.

11. STEAM ON DEMAND SWITCH - used to initiate steam injection cycle.

12. STEAM ON DEM AND LAMP - lights when steam on demand is activated.

13. LIGHTS SWITCH - used to turn the lights on and off.

14. CAVITY VENT SWITCH - used to open or close vent to release steam from cavity.

15. FAN SPEED SWITCH - used to select fan speed.

16. PROBE CONNECTION - used to connect the core temperature probe to the control.

17. FILL LAMP - illuminated until the steam generator is filled with water.

NOTE: Model BX 14 ovens do not have a

18. DELIME LAMP (BCX 14 ovens only) Flashes when steam generator deliming is needed. Remains steady when deliming process is active.

CLEAN LAMP (BX 14 ovens only) - Flashes when the unit has been in use for a preprogrammed time and needs to be clean

fill lamp.

Blodgett Oven

Page 1

Operation

Standard Controls for Models BCX 14 and BX 14

TIMER COOKING

1. Press the TIMER/ PRO B E TOGGLE KEY (7) to select the timer mode. The TIMER LED below the display lights.

2. Turn the MODE SELECTOR Switch (2) to the desired function.

3. Set the TEMPERATURE DIAL (3) to the de sired cook temperature.

For Steam mode, set the temperature no higher than 212_F (100_C).

For poaching, turn the temperature dial to the POACH position, 180_F (82_C).

The optimum temperature for Combi mode is 300 350_F (149 177_C).

4. When the oven has reached the cook temperature, load the product.

5. Use the ARROW KEYS (5) to enter the desired cook time in the display. You can clear the display by pressing the CLEAR/STOP KEY (8).

6. Press the START KEY (9) to begin the timer. The temperature, time and mode can be al tered at any time during the cooking process. To stop the timer, press the CLEAR/STOP KEY

(8).

7. When the timer reaches 00:00, the buzzer sounds. Press the CLEAR/STOP KEY (8) to silence the buzzer. Remove the product.

PROBE COOKING

1. Press the TIMER/PRO BE key (7) to select the probe mode. The PROBE LED below the display lights.

2. Use the ARROW KEYS (5) to enter the desired final cook temperature in the display. You can clear the display by pressing the CLEAR/ STOP KEY (8).

3. Insert the core probe into the product. Load product into the oven and close the door. Be sure that the terminal end of the core probe is outside of the oven and clear of the door.

4. Connec t the core probe to the P ROBE C ON NECTION (16) at the bottom of the control.

5. The display gives the actual core probe temperature.

6. When the product reaches the final cook temperature the buzzer sounds.

COOL DOWN NOTE: The unit can be cooled down rapidly

1. To cool down the oven cavity, open the

for steaming, cleaning, etc.

door and select Cool Down on the MODE SELEC TOR Switch (2).

Blodgett Oven

Page 2

STEAM ON DEMAND

Uses for Steam On Demand:

How to set the Steam On Demand feature:

Most of the ideas came from our creative custom

While in the Hot Air or Combi mode, the unit can

ers. Experiment with this feature on your own and

let us know of any new uses.

be set to steam for a timed period. At the end of the

Add a minute or two at the beginning when

timed cycle the unit reverts back to the original set

baking bread for a shiny crust.

ting. Steam On Demand can be used at any time

during the cook cycle.

Kick start large loads such as 20 or more chick

NOTE:

Steam On Demand

is not available

in ens. By starting large loads with 5 to 8 minutes

of steam you help the oven recover and cut the

steam mode.

cooking time by more than 10%.

1. Set

the desired •steam

on" time with

the

Bake bagels without boiling. By starting raw ba

STEAM ON DEMAND TIMER (10).

gels with 1 to 2 minutes of steam you can

2. Press the STEAM ON DEMAND S WI TCH (11).

achieve a beautiful crust.

The STEAM ON DEMAND LAMP (12) lights.

Cream caramel is great at 230_F to 250_F in the

Combi mode using 2 min utes of on demand

steam.

When cooking chicken wings, try setting the

oven in the Combi mode at 375_F and use 3

minutes of Steam On Demand. This method will

stop the tips from burning. Total cooking time is

approximately 12 minutes.

Pork ribs tend to pull off the bone better when

using 5 to 8 minutes of Steam On Demand. Try

ribs in the Combi mode at 350_F.

Operation

Standard Controls for M odel s BCX 14 and BX 14

Blodgett Oven

Page 3

B l o d g e t t O v e n

Page

Standard Control Second Level Programming

3. Press and Hold

for 5 seconds and release

Combi Manual Control Temp. (BP# 39673)

Instructions For +7° Temperature Offset

Recommended: Read instructions before programming. If each step is not conducted within 9 seconds, the control will lock up and the programming sequence will have to be restarted from step 1

1. Power oven off . Power on oven in Combi Mode

4. Press and hold

5. Toggle

6. Press and release

7. Toggle

8. Press and release

9. Press

until "2 X X X" is displayed. Where "X X X" are any number

until Screen displays "P 3 X X" where "X X" are any number

for 5 seconds and release

PROBE LED will begin to Flash

until Screed displays "P 2 0 7"

TIMER LED will begin to flash

10. Press and release PROBE LED will begin to flash

11. Toggle or until Screed displays "P 3 0 0"

12. Do not touch oven for 10 seconds. "0 0 0" will appear. Temp. offset is now programmed

13. Turn off oven and turn back on

Operation

Standard Controls for Models BCX 14 and BX 14

CONTROLS IDENTIFICATION

1. MODE SELECTOR SWITCH - tur ns power to the oven on or off. Allows selection of Steam, Hot Air, Combi or Cool Down Modes.

2. DISPLAY - displays time and temperature in formation.

3. TEMPERATURE DIAL - used to set desired cooking temperature.

4. HEAT LAMP - lights when the oven is calling for heat

5. TIMER LED - lights when the cook time is displayed

6. PROBE ACTUAL LED - lights when the actual probe temperature is displayed

7. PROBE SETPO INT LED - lights when the core set point temperature is displayed

8. TIMER/PROBE KNOB - use to select and set either cook time or probe temperature

9. STEAM ON DEM AND DISPL AY - displays the steam on demand time

10. STEAM ON DEM AND LAMP - lights when steam on demand is activated.

11. STEAM ON DEMAND KNOB - use to set duration for steam on demand

12. LIGHTS KEY - press to turn the oven lights on and off

13. FAN SPEED KEY - used to select fan speed.

14. CAVITY VENT KEY - used to open or close vent to release steam from cavity.

15. DELIME LAMP (BCX 14 ovens only) Flashes when steam generator deliming is needed. Remains steady when deliming process is active.

16. FILL LAMP - illuminated until the steam generator is filled with water.

NOTE: Model BX 14 ovens do not have a

17. PROBE CONNECTION - used to connect the core temperature probe to the control.

fill lamp.

Blodgett Oven

Page 5

Standard Controls for Models BCX 14 and BX 14

TIMER COOKING

1. Press the TIMER/PROBE KNOB (8) to select the timer mode. The TIMER LED lights.

2. T urn the MODE SELECTOR Switch (1) to the desired function.

3. Set the TEMPERATURE DIAL (3) to the de sired cook temperature.

For Steam mode, set the temperature no higher than 212_F (100_C).

For poaching, turn the temperature dial to the POACH position, 180_F (82_C).

The optimum temperature for Combi mode is 300 350_F (149 177_C).

4. When the oven has reached the cook temperature, load the product.

5. Rotate knob to enter the desired cook time in the display. You can clear the display by rotating counter clockwise. The timer begins on its own.

6. The temperature, time and mode can be altered at any time during the cooking process.

7. When the timer reaches 00:00, the buzzer sounds. Press or rotate the TIMER/PROBE KNOB (8) counter clockwise to silence the buzzer. Remove the product.

Operation

PROBE COOKING

1. Press the TIMER/PROBE knob (8) to select the probe set point mode. The PROBE SET POINT LED (7) lights.

2. Rotate the knob to enter the desired final cook temperature in the display.

3. Insert the core probe into the product. Load product into the oven and close the door. Be sure that the terminal end of the core probe is outside of the oven and clear of the door.

4. Connec t the core probe to the P ROBE C ON NECTION (17) at the bottom of the control.

5. The display gives the actual core probe temperature by pressing the TIMER/PROBE knob

(8) again.

6. When the product reaches the final cook temperature the buzzer sounds.

COOL DOWN NOTE: The unit can be cooled down rapidly

1. To cool down the oven cavity, open the

for steaming, cleaning, etc.

door and select Cool Down on the MODE SELEC TOR Switch (1).

Blodgett Oven

Page 6

Operation

Standard Controls for Models BCX 14 and BX 14

STEAM ON DEMAND How to set the Steam On Demand feature:

While in the Hot Air or Combi mode, the unit can be set to steam for a timed period. At the end of the timed cycle the unit reverts back to the original set ting. Steam On Demand can be used at any time during the cook cycle.

NOTE: Steam On Demand is not available in

1. Turn the STEAM ON DEMAND KNOB (11) to

2. Press the STEAM ON DEMAND KNOB (11).

steam mode.

set the desired length of time. The time is displayed in the STEAM ON DEMAND DISPLAY

(9).

The STEAM ON DEMAND LAMP (10) lights.

Uses for Steam On Demand: Most of the ideas came from our creative

customers. Experiment with this feature on your own and let us know of any new uses.

D Add a minute or two at the beginning when

baking bread for a shiny crust.

D Kick start large loads such as 20 or more

chickens. 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 bagels with 1 to 2 minutes of steam you can achieve a beautiful crust.

D Cream caramel is great at 230_F to 250_F in the

Combi mode using 2 minutes of on demand steam.

D When cooking chicken wings, try setting the

oven in the Combi mode at 37 5_F and use 3 minutes of Steam On Demand. This method will stop the tips from bur ning. Total cooking time is approximately 12 minutes.

Pork ribs tend to pull of f th e bone better when using 5 to 8 minutes of Steam On Demand. Try ribs in the Combi mode at 350_F.

Blodgett Oven

Page 7

rvice

Level Programming

BCX, BX – NEW MANUAL CONTROL

Code: 7378

(The oven needs to be in the “OFF” position)

Press the Timer Dial Till “0000” Is Displayed

Turn the Dial: Scroll the flashing # to (7)000 Press the Dial to Enter Scroll the flashing # to 7(3)00 Press the Dial to Enter Scroll the flashing # to 73(7)0 Press the Dial to Enter Scroll the flashing # to 737(8) Press the Dial to Enter Scroll to (DIAG) Diagnostics

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 to D-02 Boiler Heat Relay

D-03 Water High Level Switch Status D-04 Water Low Level Switch Status D-05 Drain Relay D-06 Fill Relay D-07 Steam Relay D-08 Quench Relay D-09 Motor-Reversals Relay Gently D-10 Motor Gently D-11 Motor Low

D-12 Motor High D-13 Motor Turbo

D-14 Door Status D-15 Lights Relay D-16 Delime Pump Relay D-17 Software Flash Number

D-18 Software Number D-19 Software Download Number

B l o d g e t t O v e n

Page 8

rvice

Level Programming

BCX, BX NEW MANUAL CONTROL

Code: 7378

(The oven needs to be in the “OFF” position)

D-20 SIB Software Number D-21 Cavity Set Temperature D-22 Cavity ACT Temperature D-23 Cooling Fan Probe Temperature 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 Hot Air relay D-35 Hot Air Enable Relay D-37 All Relays D-38 Display and LED Test

END End Of Diagnostic Test

Press Dial to Exit

B l o d g e t t O v e n

Page 9

Factory

Level Programming

BCX, BX – NEW MANUAL CONTROL

Code: 3228

(The oven needs to be in the “OFF” position)

Press the Timer Dial Till “0000” Is Displayed

Turn the Dial: Scroll the flashing # to (3)000 Press the Dial to Enter Scroll the flashing # to 3(2)00 Press the Dial to Enter Scroll the flashing # to 32(2)0 Press the Dial to Enter Scroll the flashing # to 322(8) Press the Dial to Enter “P-01” Is Displayed

Press the Dial to 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-06) Delime Interval 30 Hours (P-07) Flush Interval 24 Hours (P-08) Appliance Type Gas (P-09) Machine Type BCX / BX (P-10) Max Steam On Demand

(P-11) Min Hot Air Set Point 140F (P-12) Max Hot Air Set Point 500 (P-13) Min Steam Set Point 85F

(P-14) Max Steam Set Point 225F (P-15) Max Core Probe Pull Temp 200F (P-16) Upper Hot Air Hysteresis 1F (P-17) Lower Hot Air Hysteresis 1F

(P-18) Upper Steam Hysteresis 1F (P-19) Lower Steam Hysteresis 1F

B l o d g e t t O v e n

Page 10

Factory

Level Programming

BCX, BX NEW MANUAL CONTROL

Code: 3228

(The oven needs to be in the “OFF” position)

(P-20) Upper Ready Band 25F (P-21) Lower Ready Band 10F (P-22) Cavity Probe Offset 0F (P-23) Core Probe Offset -2F (P-24) Spritzer Solenoid Duty Cycle

(P-25) User Response Timeout

(P-26) Sleep Mode Timeout 1 (P-27) Counter Start Delay 2

(P-28) Quench Probe Yes (P-29) SCK Address 30 (P-31) ACT Oven Temp Display

(P-32) Remote Beeper Yes

Press Dial to Exit Scroll to END

Press Dial to Exit End Of Factory Programming

B l o d g e t t O v e n

Page 11

Blodgett Oven

Page 12

Operation

MenuSelect Control for Models BCX 14 and BX 14

CONTROL DESCRIPTION

START/ ST O P K E Y press to start, cancel or

pause the bake

COOL DOWN KEY initiates oven cool down

cycle

BAKE MORE KEY press at the end of a bake

cycle to add additional bake time in one

Minute increments.

DISPLAY displays ti me o r temperature and

other information related to oven function and/

Or programming.

DIAL used to enter set points, time, and pro

Programmable settings. Also used to select

the programmed product.

TEMP KEY used to set or change the bake

temperature

TIME KEY used to set or change the bake

Time.

COMBI KEY press to enter combi mode

STEAM KEY press to enter steam mode

11.

RETHERM KEY press to enter Retherm

mode, this mode uses steam to reheat frozen

or precooked product. Retherm has a

temperature limit of 250 300_F.

12.

STEAM ON DEMAND KEY used to initiate

Steam injection cycle.

13.

PROBE KEY press to use core pr obe cooking

14.

FAN KEY press to select the fan speed

15.

LIGHT KEY press to turn the lights on and off.

16.

VENT KEY press to manually open and close

the oven vent

17.

PROGRAM KEY press to enter product pro

gramming and save programmed settings.

during programming

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.

22.

CORE PROBE CONNECTION plug core

temperature probe in here when using

Probe cooking

10. HOT AIR KEY press to enter hot air mode

18.

ESCAPE KEY press to back up one step

Blodgett Oven

Page 13

Operation

MenuSelect Control for Models BCX 14 and BX 14

OVEN STARTUP

1. Be sure the gas shutoff sw itch and/or circuit breaker switch below the control panel are in the on position. The display flashes OFF PRESS POWER KEY TO START.

NOTE: If the real time clock and auto wake

up functions are enabled the display reads PRES S POWER KEY

2. Press the POWER KEY (21). The display reads PREHEAT and the oven heats to the last manual set temperature in the hot air mode. The display flashes READY / IDLE and the alarm beeps 5 times when the oven is at temperature and ready to bake.

TO START AUTO START.

MANUAL COOKING

1. Turn the DIAL (5) until the display reads

MANUAL.

2. Press the TIME KEY (7). Rotate the dial, or use the alpha/numeric keypad to enter the desired bake time. Pr ess the center of the dial to set the bake time.

NOTE: Time is set in one minute increments

using the dial. To set time in less than one minute increme nts use the

3. Press the TEMP KEY (6). Rotate the dial, or use the alpha/numeric keypad to enter the de sired bake temperature. Press the center of the dial to set the bake temperature. The oven preheats to the new temperature.

NOTE: Temperature is set in 5 degree

4. Press the desired mode key, combi, steam, hot air or Retherm.

If Combi or Retherm are selected, rotate the dial, or use the alpha/numeric keypad to enter the desired percentage of steam.

NOTE: Retherm has a temperature limit of

5. When the display flashes READY / IDLE, open the doors. Load the product.

alpha/ numeric keypad.

increments using the dial. To set time in less than 5 degree increments use the alpha/numeric keypad.

250 300_F.

6. Press the START/STOP KEY (1) to begin the bake cycle. The timer counts down and the display alternates between the cooking mode and the name of the product.

PROGRAMMED COOKING

1. Turn the DIAL (1) until the name of the product is highlighted. Press the center of the dial to select. The oven preheats to the programmed temperature in the correct cooking mode. The display flashes READY / IDLE and the alarm beeps 5 times when the oven is at temperature and ready to bake.

2. Open the doors. Load the product.

3. Press the START/STOP KEY (1) to begin the bake cycle. The timer counts down and the display alternates between the cooking mode and the name of the product.

PROBE COOKING

1. Press the PROBE key (13) to select the probe mode. The display reads CORE PROBE COOK & HOLD. Turn the dial to select either YES or NO . Press the center of the dial to se lect.

If YES is selected, Cook & Hold has been enabled. In the Cook & Hold mode, the oven cavity lowers to the product pull temperature as the product cooks.

If NO is selected, Cook & Hold has not been enabled the cavity maintains the cook temperature.

2. Turn the DIAL to enter the desired product pull temperature in the display. Press the center of the dial to save the pull temperature.

NOTE: Temperature is set in 5 degree incre

ments using the dial. To set time in less than 5 degree increments use the alpha/numeric keypad.

Blodgett Oven

Page 14

MenuSelect Control for Models BCX 14 and BX 14

4. Press the desired mode key, combi, steam, hot air or Retherm.

If Combi or Retherm are selected, rotate the dial, or use the alpha/numeric keypad to enter the desired percentage of steam.

NOTE: Retherm has a temperature limit of

5. Insert the core probe into the product. Load product into the oven and close the door. Be sure that the terminal end of the core probe is outside of the oven and clear of the door.

6. Connect t he core probe to the PR OBE CON NECTION (22) at the bottom of the control.

NOTE: Do not connected the probe before

7. The display gives the actual core probe tem perature as well as the oven set temperature.

8. When the product reaches the pull temperature the buzzer sounds.

9. Press t he START/ST OP KEY (1) to silence the buzzer.

If using Cook & Hold - The cav ity tempe ra ture continues to drop to the product pull temperature and the display counts up, telling the operator long the product has been held. Disconnect the core probe and remove the product when ready.

If not using Cook & Hold - The cavity re mains at the cook temperature. The display does not count up. Disconnect the core probe and remove the product when the buzzer sounds.

250 300_F.

the cook mode has been selected.

DURING ANY COOK CYCLE Steam On Demand

While in the Hot 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 Demand can be used at any time during the cook cycle.

1. Press the STEAM ON DEMAND KEY (12).

2. Rotate the dial, or use the alpha/numeric key pad to enter the desired steam on demand

Operation

time. Press the center of the dial to initiate Steam on Demand cycle.

NOTE: Steam on Demand time is set in one

minute increments using the dial. To set time in less than one minute incre

3. The Steam on Demand LED flashes until the steam time has expired.

Venting Moisture from the Oven Cavity

1. Press the VENT KEY (16). This manually opens the vent until the key is pressed again to close it.

Pause a Bake Cycle

1. To pause a cook cycle, p ress the START/ STOP KEY (1). The LED on the start/stop key flashes. The bake cycle will pause until the key is pressed again.

Cancel a Cook Cycle

1. To cancel the cook cycle, press and hold the START/STOP KEY (1).

ments use the alpha/numeric keypad.

AT THE END OF ANY COOK CYCLE

1. An alarm sounds, the display reads DONE.

2. If more bake time is desired, press the BAKE MORE KEY (3). This will add an additional one minute of time for each press of the key.

3. When you are satisfied with the bake, press the START/STOP KEY (1) to silence the alarm. Open the door to remove the product.

OVEN SHUTDOWN

1. Press the COOL DOWN KEY (2). The display reads AUTO COOL DOWN ACTUAL TEMP. To speed up the cool down process, open the doors and press the VENT KEY (16) to open the vent.

2. When the oven has cooled down, the display reads OFF PRESS POWER KEY TO START.

NOTE: The lights shut off and the vent

closes automaticall y at the end of the cool down cycle.

Blodgett Oven

Page 15

Operation

MenuSelect Control for Models BCX 14 and BX 14

PRODUCT PROGRAMMING Entering the Program Mode

1. Press the PROGRAM KEY (17). If the control is password protected, the display reads EN TER CODE. Use the alpha/numeric keypad to enter the manager pass code 3124, then press the center of the dial to enter the program mode.

Naming a Product Recipe NOTE: Use the following procedure to name a

new product or edit the name of an

1. For a new recipe, turn the dial to the first open

2. Use the dial to scroll down to Edit Name.

3. Turn the dial or use the alpha/numeric keypad

4. Press the PROG KEY (17). With SAVE

existing product.

product. Press the center of the dial to select.

To edit an existing name, rotate the dial to the name to be changed. Press the center of the dial to select.

Press the center of the dial to enter the edit name menu.

to select the first character. Press the center of the dial to advance to the next character. Re peat for all remaining characters.

NOTE: Product names may be up to 10

characters long and can contain spaces. Use the #1 key to insert spaces in a recipe name.

NOTE: To select letters using the keypad,

press the appropriate key once if you need the first letter on the key, twice for the second and three times for the third. For example to enter the letter L press the #5 key three times.

highlighted, press the dial to save the product name.

Programming a Product Recipe

NOTE: The control can hold 99 recipes. Each rec

1. Turn the dial to highlight the name of the

2. The display reads PRODUCT NAME: ST AGE 1.

3. Rotate the dial, or use the alpha/numeric key

4. Rotate the dial to select the desired

5. Rotate the dial, or use the alpha/numeric

6. Rotate the dial to select the desired fan speed.

ipe may have up to 6 cooking stages.

product to be programmed. Press the center of the dial to select the product.

Press the center of the dial to select the stage.

pad to enter the desired bake time. Press the center of the dial to set the bake time.

NOTE: Time is set in one minute increments

using the dial. To set time in less than one minute increme nts use the alpha/ numeric keypad.

cooking mode. Choose from combi, steam, hot air or Retherm. Press the center of the dial to set the cook mode.

If Combi or Retherm are selected, rotate the dial, or use the alpha/numeric keypad to enter the desired percentage of steam.

key pad to enter the desired cook temperature. Press the center of the dial to set the bake temperature.

NOTE: Temperature is set in 5 degree incre

ments using the dial. To set time in less than 5 degree increments use the alpha/numeric keypad.

NOTE: Retherm has a temperature limit of

250 300_F.

Choose from gentle, low, high or turbo. Press the center of the dial to set the fan speed.

BCX, BX – MENUSELECT CONTROL

Service Level Programming

(The oven needs to be in the “ON” position)

Press the Maint Key Scroll to “SERVICE” Press the Dial to Enter Enter Service Code “7378” Press the Dial to Enter Scroll to “Diag Output” Press the Dial to Enter

Press and hold # button to 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 Cooling Fan

2 Vent 5 Hot Air 8 Hot Air Enable

Component Function Test:

0 Quench

Hot Air Delime

Probe Heat Boiler

Vent Fill

Maint Drain

(Press the Dial to Exit) Scroll to “Diag Input” Press the Dial to Enter

Press and hold buttons to test

Temp Fan Error

Combi Door

Fan Cavity Probe Temp

Component Function Test:

B l o d g e t t O v e n

Page 16

BCX, BX MENUSELECT CONTROL

Service Level Programming

(The oven needs to be in the “ON” position)

Prog Cooling Fan Probe Temp

1 Quench Probe Temp 4 Core Probe Temp 7 Boiler Probe Temp

Steam Water Hi Level SW

Steam on Demand Water Low Level SW

“Press the Dial to Exit” Scroll to Exit

Press the Dial to Exit Scroll to Exit Press (“Dial”)

Factory Level Programming

(The oven needs 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 Turn Dial to set Gas or Electric Press the Dial to Enter

Scroll to “Cavity Probe Offset” Press the Dial to Enter Turn the Dial to Set the Offset Press the Dial to Enter

Scroll to ”Core Probe Offset” Press the Dial to Enter Turn the Dial to set the Offset

Press the Dial to Enter

Scroll to Exit

Press the Dial to Exit Scroll to Exit again

Press the Dial to Exit the

Program Level.

B l o d g e t t O v e n

Page 17

B l o d g e t t O v e n

Page

Notes:

BCX14E

BCX14E TROUBLESHOOTING GUIDE

In this troubleshooting guide, the schematic is broken down into areas. This allows the oven to be checked in sections.

When troubleshooting, tilt the control panel down for access to use your voltmeter. The main control circuit voltage for all BX / BCX and CNVX model ovens is 24DC volts. Once the problem is determined be sure to power the oven down before disconnecting connections.

NOTE: Always troubleshoot Combi ovens in the following sequence: COOL DOWN, HOT AIR, STEAM and then COMBI. Reference the text that follows with the appropriate troubleshooting schematic to help you troubleshoot each mode.

DC VOLTAGE TEST POINTS

1. At the DCV power supply should be (2) +24Dcv and (2) -24Dcv_Rtn connections, when 115Acv is applied to the power supply there will be a small green light on at the power supply and it should always have 24Dcv between the plus and minus points.

2. Locate the logic board small connector J1 using your voltmeter checking for 24Dcv between terminals (J1-1) 24Dcv Rtn verify true 24Dcv input to enable the logic board during the power up.

3. The J1 connector between (J1-1) -24Dcv Rtn and (J1-4) +24dcv will be the best (Test points). When troubleshooting any problems, if your looking for a low signal test between (J1-4) +24Dcv RD to the low input searching for, or if your looking for a +24Dcv_H positive leg of power check between (J1-1) -24Dcv_Rtn and the high signal searching for. (See FIGURE 1)

4. Checking for 24Dcv at the IFB relay board J7 connector between (J7-1) to (J7-2).

5. NOTE: While troubleshooting the 24Dcv circuit with the wire schematic you will see that most all of the control switching is to a (Low) 24Dcv_Rtn. Also while reviewing the wire schematic you will see the wires labeled as a (High) or (Low) input such as (Oven_On_L) for the low input and (Door_Closed_H) for a high input/output.

to (J1-4) +24Dcv to

6. Acv/Dcv. See the incoming power supply flow chart (FIGURE 1).

NO OPERATION WITH THE MODE SWITCH IN COOL DOWN

1. Verify that the control panel circuit breaker is in the on position.

2. Check the outlet for proper power supply.

3. Remove the LH body side panel and inspect the motor inverter control to see if it is powered up with 115Acv and if there are any error codes present if so, see the attached fault code list for troubleshooting. The display will show 00 if there are no fault codes present while the motor is not running. If no codes are present continue or if a code is present see the programming fault code troubleshooting flow chart section 4 (FIGURE 1) page 9-1.

4. Locate the logic board small vertical RH connector J1 using your voltmeter checking for 24Dcv between (J1-4) to the mode switch terminal # 4 voltage should be present, if not investigate the mode switch. Also check between the J1 connector (J1-4) to the inverter connector BK-12 wire at CM2 for 24Dcv, if no voltage check the IFB relay board connector J3.

5. To bypass the mode switch and wire harness use your voltmeter set to the 10amp red fuse side with the black in COM then set your meter to DC amps, now your meter is a fused jumper wire. Now jump between the logic board J1 connector (J1-1) to the motor speed inverter GY-19 low signal at terminal # 2 of the inverter. This should activate the inverter power up. See the cool down operation troubleshooting flow chart (FIGURE 3).

NO OPERATION WITH THE MODE SWITCH IN HOT AIR

1. Verify that the convection motor is running with the door fully closed. If not see door switch troubleshooting flow chart (FIGURE 7).

2. Verify that the thermostat has powered up, counted down and displaying a set temperature along with the heat indicator light activated.

3. Remove the LH body side panel and tilt the control panel down for troubleshooting access.

B l o d g e t t O v e n

Page 19

BCX14E

BCX14E TROUBLESHOOTING GUIDE

4. Checking for logic board input/output LED indicators, in the hot air mode the amber input LED’s #6 and #9 need to be on along with the green output LED #13. Verify LED’S with the logic board LED designation flow chart (FIGURE 11).

5. Also look for LED indicator inputs at the (IFB) relay board, the CR3 relay LED (D31), CR2 relay LED (D21) and the CR1 relay LED (D11) will all need to be on. If not check all connectors and the 24Dcv inputs at the J7 connector per the wire schematic. Verify LED’S with the IFB LED indicator designation flow chart (FIGURE 12).

6. If all of the above are good continue testing checking at the lower of the two Dcv 24V power supplies for a lighted small green light along with checking for 24Dcv output.

7. Next go directly the (K1) hot air contactor and measure the coil voltage between A1 & A2 for 24dcv volts, if not check A1 at the coil to the J1 connector at the logic board J1-1 for 24dcv and if okay check A2 coil to logic board J1-4 for 24dcv.

8. In either case no voltage go the IFB relay board and check for 24dcv at J4 connector between J4-1 and J4-2 for 24dcv from the power supply, good check from J4-6 to logic board J1-1 for 24dcv output to the contactor coil.

NO OPERATION WITH THE MODE SWITCH IN STEAM

1. Verify that the convection motor is running with the door closed. If not see door switch troubleshooting flow chart (FIGURE 7).

2. Verify that the thermostat has powered up, counted down and displaying a set temperature along with the heat indicator light activated.

3. Remove the LH body side panel and tilt the control panel down for troubleshooting access.

4. Check for logic board input/output LED indicators, in the steam mode the amber input LED’s # 3 and # 6 need to be on along with the green output LED # 10. Verify LED’S with the LED designation flow chart (FIGURE 11).

5. Look for LED 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 24Dcv input see wire schematic. Verify LED’S with the IFB LED indicator flow chart (FIGURE 12).

7. If all of the above is good continue testing checking at the lower of the two power supplies for a lighted small green light along with checking for 24dcv output.

9. Next go directly the (K2) steam contactor and measure the coil voltage between A1 & A2 for 24dcv volts, if not check A1 at the coil to the J1 connector at the logic board J1-1 for 24dcv and if okay check A2 coil to logic board J1-4 for 24dcv.

10. In either case no voltage go the IFB relay board and check for 24dcv at J6 connector between J6-1 and J6-2 for 24dcv from the power supply, good check from J6-5 to logic board J1-1 for 24dcv output to the contactor coil.

NO OPERATION WITH THE MODE SWITCH IN COMBI

1. Verify that the convection motor is running with the door fully closed. If not see door switch troubleshooting flow chart (FIGURE 7).

2. Verify that the thermostat has powered up, counted down and displaying a set temperature along with the heat indicator light is activated.

3. Remove the LH body side panel and tilt the control panel down for troubleshooting access.

4. Checking for logic board input/output LED indicators, in the Combi mode the amber input LED’s #2 and #6 need to be on along with the green output LED #13 and then #10 for 45 seconds intervals of steam while in Combi. Verify LED’S with the LED designation flow chart (FIGURE 11).

5. Look for LED indicator inputs at the (IFB) relay board, looking for the CR3 relay LED (D31), CR2 relay LED (D21), CR1 relay LED (D11) will all need to be on and CR7 relay LED (D71) will be on during a 45 second steam on time. If not check all connectors and the 24Dcv input at the J7 connector per the wire schematic #50277 between (J7-1) to (J7-2). Verify the LED inputs with the IFB LED indicator designation flow chart (FIGURE 12).

B l o d g e t t O v e n

Page 20

BCX14E

BCX14E TROUBLESHOOTING GUIDE

8. If all of the above is good continue testing checking at the lower of the two power supplies for a lighted small green light along with checking for 24dcv output.

9. Next go directly the (K1) hot air contactor and measure the coil voltage between A1 & A2 for 24dcv volts, if not check A1 at the coil to the J1 connector at the logic board J1-1 for 24dcv and if okay check A2 coil to logic board J1-4 for 24dcv.

10. Hot air contactor will mostly control the Combi mode along with the logic board switching from hot air contactor to steam contactor for on and off for about 45 seconds as long as the boiler has come above the preheat temp of 180° already.

11. In either case no voltage go the IFB relay board and check for 24dcv at J4 connector between J4-1 and J4-2 for 24dcv from the power supply, good check from J4-6 to logic board J1-1 for 24dcv output to the contactor coil.

NO FILLING OF THE STEAM BOILER

1. Verify the water pressure and flow of the water pressure through the pressure regulator.

2. Verify that the control panel circuit breaker is in the on position.

3. Check for 24Dcv at the power supply with the mode switch in the off position, green light ON.

4. Shut the water supply off, then at the IFB board locate the flush switch in the center RH of the relay board and press and hold it for 45 seconds while checking for water flow out the drain.

5. After doing so disconnect the float wires (mark as needed) check for continuity, both floats are normally closed and open when are floats full.

6. If floats are closed re-connect the float wires and turn the water supply back on. At this point with the mode switch still in the off position the logic board LED indicators amber input # 8 and green output # 15 should be on activating the fill solenoids.

7. No water filling yet check the IFB fill enable CR8 relay LED (D81), if not on check the relay board J8 connector at (J8-1) to (J8-2) for 24dcv.

8. See the float switch troubleshooting flow chart (FIGURE 8).

OVER FILLING OF THE STEAM BOILER

1. Turn off the control panel circuit breaker to see if the water over filling continues in the oven.

2. If water stopped when power was off, turn the circuit 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 level cut float is in the closed position and will not open. Repair or replace floats switch as needed.

3. Check both float switches for normally closed when empty and open when steam generator is full. (If they do not open repair or replace floats as needed.

4. See the float switch troubleshooting flow chart (FIGURE 8).

CONVECTION MOTOR WILL NOT REVERSE DIRECTIONS.

1. This oven comes equipped with the feature of the convection motor reversal after every six minutes of motor run time in all modes except for the cool down mode.

2. When any mode but cool down is activated the motor should start up counter clockwise.

3. Check for 24dcv at the TMR1 timer between A1 to A2. When verified test between A1 to # 16 for 24dcv after six minutes 24dcv will switch from terminal #16 to # 18. (If voltage does not switch remove the wire from #18 and retest the timer for switching.

4. What ever the out come the motor speed inverter is looking for a 24Dcv_Rtn_L input from the timer to either terminal #5 or #6 at the motor speed inverter to reverse directions.

5. See the motor reverse troubleshooting flow chart (FIGURE 9).

DOOR SWITCH TROUBLESHOOTING

1. The door switch is a proximity switch that is activated by the metal of door when it is closed therefor-proper adjustment is needed.

2. The door switch is located at the lower left corner with the door open the switch will be

B l o d g e t t O v e n

Page 21

BCX14E

BCX14E TROUBLESHOOTING GUIDE

protruding out ½ inch, inspect the switch for any damage and for proper adjustment.

3. There are three wires from the door switch that

go directly to the IFB connector J5.

4. Check for 24Vdc active at the IFB relay board

at the connector J5 from (J5-3) to (J5-4).

5. If the door switch has 24Vdc going to it when the door is closed the back of the door switch will light up to indicate the door switch has been activated and the blower motor should began running.

6. At this point check for +24Vdc_H output from the IFB connector J5 from (J5-2) to (J5-5). If the voltage is present and the door switch is closed now look for an LED indicator at the IFB relay board CR2 relay (D21). See door switch troubleshooting flow chart (FIGURE 7).

DRAIN VALVE TROUBLESHOOTING AND OPERATION

1. The drain valve will always remain in the closed position during all mode operations.

2. If the oven boiler is below 150 degrees and after somewhere between 3-5 hours of non use the logic board will activate the drain valve motor to open and drain the boiler down then it will close the drain valve motor and then refill the boiler to the low level float switch.

3. When troubleshooting the drain valve motor operation there is a small stem switch on the right side of the IFB relay board. This can be depressed to activate the drain valve motor, while holding the switch (In) the drain valve motor open fully to drain the boiler down and when the switch is released the drain valve motor will return to the normally closed position. (Caution of a hot boiler).

4. See Troubleshooting (FIGURE 10).

NO STEAM ON DEMAND

1. While depress the steam on demand button verify at the logic board LED indicators amber input # 4 and green output # 12.

2. No LED input check for a 24dcv-Rtn_L input to the logic board at the J3 connector at (J3-7) of the logic board. If there is no input 24Dcv_Rtn_L signal 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 oven placed in the cool down, when you press and hold the steam on demand button for a few several seconds 24Vdc should be applied directly the delime pump.

2. Verify when you activate the steam on demand button, at the logic board LED indicators amber input #4 and green output #12 light up.

3. If no voltage is found during the first test at the delime pump, go to the IFB relay board J8 connector and test between (J8-1) to (J8-2) 24Vdc should be present.

4. Continued testing, check for 24Vdc to the R-12 wire at the delime pump testing from the J8

5. IFB connector (J8-2) to the R-12 wire. If voltage is good this would mean the red +24Vdc is good now check between the V-13 wire at the delime pump to check the 24Vdc_Rtn_L input from the J8 connector test between (J8-1) to V-13. If no voltage inspect the IFB relay board for damage.

MOTOR SPEED INVERTER PRGRAMING

1. Every motor speed inverter has been programmed from the factory however for some reason if it lost it’s programming it can be reprogrammed manually.

2. You will see on the inverter drive the green (Run) and red (Stop/Reset) buttons, below those two buttons there is a door that will open up to gain access to the programming keys need to reprogram the inverter drive.

3. Behind the access door the programming keys are (FUNC.), (#1⇑⇑⇑⇑ ), (#2 ⇓⇓⇓⇓) and (STR).

4. To program the inverter drive back to the factory settings (See the attached programming flow chart (Figure 3).

5. See Inverter fault code & stored fault codes flow chart section 4 (FIGURE 1) page 4-1.

B l o d g e t t O v e n

Page 22

BCX14E

BCX14E INCOMING POWER SUPPLY CHECK

24dcv Power Supply

115 24dcv Incoming ACV + + 24dcvRtn A. 24Vdc to J7 at (IFB) L - N + 24dcv

- 24dcvRtn B. 24Vdc to J1 connector

Switch Closed +24Vdc 24Vdc 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 Logic board 0 #8 Steam (J3-2)

0 #10 Convection (J3-6)

J2-2 Temp control TC1 +24Vdc (Temp Control) J2-1

Control panel lights

(DS5) Pwr_On (DS6) Heat_Demand (DS9) Steam_Demand (DS8) Delime (DS7) Low_Water

+24 Dcv

B l o d g e t t O v e n

Page 23

+ 59 hidden pages