Prince Castle EHB34-2 Series User manual

Operation
Manual
Extended Hold Bin
EHB34-2 Series
LIMITED WARRANTY
This product is warranted to be free from defects in material and/or workmanship
for a period of 3 years (repair parts) and 2 years (service labor) from date of origi-
nal installation, not to exceed 30 months from the date of manufacture.
Any component which proves to be faulty in material and/or workmanship will be
replaced or repaired (at the option of Prince Castle LLC) without cost to the cus-
tomer for parts and labor. This warranty covers on location service (i.e. trip charges
and or mileage). Travel mileage is limited to 100 miles (200 Kilometers) round trip
(one trip warranty) from an authorized service agency or its sub-service agency.
This warranty is subject to the following exceptions/conditions:
• Use of any non-genuine Prince Castle parts voids this warranty.
• All labor to be performed during regular work hours. Overtime premium
(the incremental amount) will be charged to the customer.
• Damage caused by carelessness, neglect and/or abuse
(e.g., dropping, tampering or altering parts, equipment damaged in shipment,
by fire, flood or an act of nature) is not covered under this warranty.
• All problems due to operation at voltages other than that specified on equipment
nameplates are not covered by this warranty. Conversion to correct voltage is the
customer’s responsibility.
• This equipment must be serviced by Prince Castle Authorized Service Agency
or a Prince Castle Service Technician during the warranty period.
355 EAST KEHOE BLVD. ~ CAROL STREAM, IL, 60188, USA
PHONE: [phone] ~ TOLL FREE: 1-800-PCASTLE
FAX [phone] ~ WWW.PRINCECASTLE.COM
TABLE OF CONTENTS
Model Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Model Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Safety Information . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . .3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Product Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Setting the Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Calibrating the Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Changing the Hold and Cook More Times . . . . . . . . . . . . . . . . . . . . 8
Changing Product Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Changing Temperature Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Adjusting Alarm Volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Selecting the Daypart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...11
Setting Product Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Default Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Zone Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..13
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...16
Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..17
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ATTENTION: Read the instructions before using the machine.

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Dedicated Holding Bin
EHB34-2 Series
Model Identification
Serial Number Matrix
The manufacture date is encoded in the unit’s serial number.
The service bench installation date (used to determine warranty
coverage) is considered to be the end of the following month. For
example:
Serial Number: JL0173804
Manufacture Date: September 2016
Service Bench Installation Date: October 31, 2016
SERIAL NUMBER MATRIX
2016 2017 2018 2019 2020 2021 2022 2023
LMNPRSTU
January AAL AM AN AP AR AS AT AU
February BBL BM BN BP BR BS BT BU
March CCL CM CN CP CR CS CT CU
April DDL DM DN DP DR DS DT DU
May EEL EM EN EP ER ES ET EU
June FFL FM FN FP FR FS FT FU
July GGL GM GN GP GR GS GT GU
August HHL HM HN HP HR HS HT HU
September JJL JM JN JP JR JS JT JU
October KKL KM KN KP KR KS KT KU
November LLL LM LN LP LR LS LT LU
December MML MM MN MP MR MS MT MU

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Safety Information
WARNING
Indicates information important to the proper operation of the unit.
Failure to observe may result in damage to the equipment and/or
severe bodily injury or death.
CAUTION
Indicates information important to the operation of the unit.
Failure to observe may result in damage to the equipment.
Important
Prince Castle reserves the right to change specifications and
product design without notice. Such revisions do not entitle
the buyer to corresponding changes, improvements,
additions or replacements for previously purchased
equipment.
STYLE WIDTH (mm) HEIGHT (mm) DEPTH (mm) WEIGHT (kgs) VOLTAGE AMPS PLUG
3H X 4W 33.2” (843) 16.2” (413) 14.1” (358) 83 lbs (38) 208-240V 13.5-15.6 6-20P
NOTE:
Weight (kgs) is product weight.
Model Specifications
Installation
Remove the unit from the carton and inspect for signs of
damage. If there is damage to the unit:
• notify the carrier within 24 hours of delivery
• save carton and packaging materials for inspection pur-
poses
• contact your local dealer, or if purchased directly,
the Prince Castle Sales Department at 800-722-7853
or 1-630-462-8800 to arrange for a replacement unit.
NOTE: Plug the power cord into the proper electrical
receptacle. All electrical connections must be in accordance
with local electrical codes and any other applicable codes.
1Plug unit into a grounded
receptacle with a matching
plug configuration.
Place Holding Bin on flat surface.
Remove blue and/or white protective covering.
NOTE: When installing this unit, the ambient temperature
at the mounting site should not exceed 100°F (38°C)
2
3
All electrical connections must be in accordance with local
electrical codes and any other applicable codes.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent, or similarly qualified persons
in order to avoid a hazard.
To prevent an electric shock hazard this device must be
bonded to equipment in close proximity with an equipotential
bonding conductor. This device is equipped with a grounding
lug for this purpose.
WARNING:

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Product Identification
Button Bar
Power
ON/OFF
Switch
DISPLAY
Control Panel
PAN LIDS, ONLY used with broiled products.
(Fried products DO NOT require lids)
Operation
WARNING: This application is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
To turn on the unit,
Turn Power On/Off switch (A) to ON position.
NOTE: Load pan covers (if used) and insert pans into the unit.
Allow 20 minutes for heaters to
reach operating temperature.
The button bar will read “WARM
UP” as the unit warms up, they
will display the product names.
1
(A)
Press all Pan Arrow buttons.
The Pan displays will show the assigned product name.
If no product is assigned, the display
will be dim and show “----”. Pressing
the Pan Arrow button will not activate
the timer if “----” is displayed. Pressing
Pan Arrow button when product name
is displayed will start timing cycle.
BKFT (Breakfast) or
REG (Regular Menu)
will be lit depending on
pre-programmed menu.
2
BKFT LED
(Breakfast)
REG LED
(Regular Menu)
ENTER Button
LOWER PAN Display
(1 for each slot wide)
UP and DOWN ARROW
UPPER PAN Display
(1 for each slot wide)
TRANSFER Button
(Not used)
PRINCE CASTLE
LOGO Button
PAN ARROW Buttons
(2 for each slot wide)
LED TIMERS ( tri-color)
(1 for each pan arrow button)
BUTTON BAR

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LED Timing Status LED TIMERS
BLANK (steady) = Ready for product
RED (flashing) = Discard product
GREEN (steady) = Oldest product, use first
GREEN (flashing) = Cook more product
YELLOW (steady) = Newer product, use green first
YELLOW (flashing) = Cook more product
When LED is BLANK, load product and press the Pan Arrow button.
If only one pan is active
for a product, the LED
will turn from BLANK to
GREEN.
When any of the timer LED flash,
cook more product or remove and
discard product as indicated.
GREEN (flashing) = Cook more product
YELLOW (flashing) = Cook more product
RED (flashing) = Discard product
3
4
The LED for the 2nd pan loaded with
the same product will turn from BLANK
to YELLOW.
The LED timer can be stopped
(cancelled) at any time by pressing and
releasing the corresponding PAN Arrow
button.
5
WARNING: HOT SURFACES
If more than one pan is
active for a product, the
LED for the first pan loaded
will turn from BLANK to
GREEN.
Operation

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The unit has multiple shelves, each with both an upper and lower heater for each zone.
The heaters follow the default setpoints of the preset products for each pan
Each heater has a programmable range of 150° – 275°F (66° – 135°C).
Use the instructions below and the following steps to set the setpoint temperatures for each heater.
NOTE: Only applicable in stand-alone mode when not connected to Product Management system,
setpoint cannot be changed when connected to a kitchen manager.
UPPER SHELF LED
This LED will be lit to indicate upper shelf is selected.
PROG LED
This LED will be lit to indicate unit is in Program Mode.
LOWER SHELF LED
This LED will be lit to indicate lower shelf is selected.
ACTUAL TEMP BUTTON and LED
Press to display actual temperature for the
selected heater. LED will be lit when actual
temperature is displayed.
SETPOINT BUTTON and LED
Press to display setpoint temperature of a
selected heater. LED will be lit when setpoint
temperature is displayed.
TEMPERATURE DISPLAY
A, B, C, D ( E, F ) = ZONES
Upper and Lower Heater
UP/DOWN ARROW BUTTONS
Used with other Buttons to scroll through heater
and temperature selections.
CROWN BUTTON
Press to enter temperature selections.
CAUTION:
DISPLAYED TEMPERATURES
ARE HEATER TEMPERATURES
AND DO NOT INDICATE ACTUAL
FOOD TEMPERATURES.
NOTE: To reset all calibrations to the factory settings,
turn the unit off, then press and hold the UP and DOWN
Arrow buttons simultaneously while turning the unit back
on. A “P” will appear in the display and all calibrations
will be reset to original factory settings.
Setting the Temperature
The SET PRODUCT TEMP menu is used to change the Hold and Cook-More times.
Press and hold the PRINCE CASTLE LOGO button on the button bar, then immediately press and hold the MENU/ENTER button on the
button bar until the display shows one of six programming menus…..(hold for about 5 seconds)
Use the UP or DOWN Arrow button to scroll to the SET TEMP ↑ ↓ ENTR (Set Product Temperature) menu.
1
2Press and release the MENU/ENTER button to enter the programming menu, the display should then read SEL TEMP XXXX ↑ ↓
(the XXXX is where the product abbreviation is displayed). Use the UP and DOWN arrows to navigate to the desired product.
3Press the MENU/ENTER button to select that product profile to update, the display will read SET UPR XXXX ###s↑ ↓ the XXXX
is where the product abbreviation is displayed, and ### is the temperature. Use the UP and DOWN arrows to set the temperature of
the upper heater of that zone. Confirm setpoint by pressing MENU/ENTER

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Calibrating Heaters
1Use the following steps to calibrate the individual heaters
Press the UP or DOWN Arrow button
until the desired shelf LED and upper
or lower heater is selected.
NOTE: Allow sufficient amount of time
for temperatures to stabilize before
starting calibration. (approx. 30
mins.)
2Take a temperature reading within the shelf near
the center of each heater surface.
NOTE: Use an independent
Temperature meter (not supplied).
WARNING: HOT SURFACES
Use caution when taking
temperature readings
within the shelf.
Press and hold the CROWN BUTTON and ACTUAL TEMP buttons
for 5 seconds. The colon (:) LED indicator will light.
The temperature displayed is the actual heater temperature
sensed by the controller. To clear any offset readings,
press the SETPOINT button.
3
4Press the UP or DOWN Arrow button until the temperature
displayed matches the reading obtained in Step 2.
Press the CROWN BUTTON to save the temperature
value and exit the Calibration Mode.
NOTE: Setpoints are displayed on the front display board, and should be updated according to the product at this point.
Setting the Temperature (Continued)
4The display will now show SET LWR XXXX ###s ↑ ↓. Use the UP and DOWN arrows to set the temperature of the Lower heater of that zone.
Press MENU/ENTER to confirm setpoint temperature.
5Press PRINCE CASTLE LOGO BUTTON to save the setpoints. Repeat steps 2-5 for all necessary profile upgrades.
NOTE: Changing the profile on one bar in a linked system of bin (s) is enough, it does not need to be changed on all bars in the system.

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Changing the Hold and Cook-More Times (Standalone Mode)
1The SET PRODUCT TIME menu is used to change the Hold and Cook-More times.
Press and hold the PRINCE CASTLE LOGO button on the button bar,
then immediately press and hold the ENTER button until the display shows one of six programming menus.
Use the UP or DOWN Arrow button to scroll to the PROD TIME ↑ ↓ ENTR (Set Product Time) menu.
2Press and release the ENTER button to enter the Set Product Time menu. The display will show BURG TIME ↑↓ ENTR.
Use the UP or DOWN Arrow button to scroll through the list of products.
When the desired product is displayed, press the ENTER button to select it.
NOTE: Holding the UP or DOWN Arrow button for longer than 2 seconds will cause the product list to automatically scroll up or down.
The display will show 90 ↑↓ ENTR.
3
Use the UP or DOWN Arrow button to scroll to the desired
Hold time. When the desired Hold time is displayed, press
the ENTER button to save the desired Hold time.
NOTE: Hold time cannot be reduced to less than the Cook-More time
plus one minute. NOTE: All times are displayed in minutes only.
For example, 2 and half hours is displayed as 150
4The display will show COOK 03 ↑ ↓ ENTR.
Use the UP or DOWN Arrow button to scroll to the desired
Cook-More time. When the desired Cook-More time is
displayed, press the ENTER button to save it.
NOTE: Cook-More time cannot be increased to more than the
Hold time, minus one minute.
5The display will show BURG TIME ↑ ↓ENTR. Repeat Steps 2 – 4 for any other product.
Press and release the PRINCE CASTLE LOGO button at any time to exit the Program Mode and return to the Run Mode.
NOTE: If the ENTER button has not been pressed to save any changes, the program will revert to the original values.

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Changing Product Names (Standalone Mode)
The EDIT PRODUCT NAME menu is used to change a default product name to one of your own choosing.
Press and hold the PRINCE CASTLE LOGO button on the button bar,
then immediately press and hold the ENTER button until the display shows one of six programming menus.
Use the UP or DOWN Arrow button to scroll to the PROD NAME ↑ ↓ ENTR (Edit Product Name) menu.
1
2Press and release the ENTER button to enter the Edit Product Name menu.
Use the UP or DOWN Arrow button to scroll through the list of products.
When the desired product is displayed, press the ENTER button to select it.
The first letter (in this case, the B ) will start blinking.
3To change the blinking B, use the UP or DOWN Arrow button to scroll to the desired letter/number/symbol.
When the desired selection is displayed, press the PAN Arrow button to move to the next digit. Repeat for all digits.
NOTE: Holding the UP or DOWN Arrow button for longer than 2 seconds will cause the display to automatically scroll up or down.
When all four digits have been changed, press the ENTER button to select the new name.
4
The display will show PROD NAME ↑↓ ENTR. Repeat Steps 2 – 4 for any other product.
Press and release the PRINCE CASTLE LOGO button at any time to exit the Program Mode and return to the Run Mode.
NOTE: If the ENTER button has not been pressed to save any changes, the program will revert to the original names.
5
...
NOTE: Only applicable in stand-alone mode when not connected to Product Management system.
NOTE: The default menu items and names are listed on page 13.

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Changing Temperature Scale (Standalone Mode)
The SET F/C menu is used to change the temperature scale.
Press and hold the PRINCE CASTLE LOGO button on the button bar,
then immediately press and hold the ENTER button until the display shows one of six programming menus.
Use the UP or DOWN Arrow button to scroll to the SET F/C XXXX ↑ ↓ ENTR (Edit Product Name) menu.
1
Press the ENTER button to enter the menu.
Bar will display SET DEGR F/C ↑ ↓ ENTR and either the F or C will be blinking.
2
Use the UP and DOWN arrows to select the desired temperature mode (the selected mode will blink)
Press the ENTER button to confirm the selection. Press the PRINCE CASTLE LOGO button to save the setting.
3
Adjusng Alarm Volume (Standalone Mode)
The SET VOLUME menu is used to change the alarm volume.
Press and hold the PRINCE CASTLE LOGO button on the button bar,
then immediately press and hold the ENTER button until the display shows one of six programming menus.
Use the UP or DOWN Arrow button to scroll to the SET VOL ↑ ↓ ENTR (Set Volume) menu.
1
NOTE: Only applicable in stand-alone mode when not connected to Product Management system.
1
2A mer alarm is included to sound aer a hold mer
is complete.
The volume is adjustable from level 0-3.
Once the menu is on the bar, press ENTER to enter
the menu
3Scroll to the desired volume seng and hit ENTER
to accept.

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Press and hold the SETPOINT button and the DOWN Ar-
row button for 3 seconds, the current day part will begin
flashing on the screen.
Use the up/down arrows to select day part 1 through 6
and the Prince Castle Crown button to confirm your se-
lection.
NOTE: Whenever a bin is powered ON it defaults to DAY
1
Selecng the Daypart
To shut down the unit,
turn the Power On/Off switch (A) to OFF position.
2
WARNING:
Before performing any maintenance, turn the
power switch to the OFF position and unplug
the power cord from the electrical receptacle.
Cleaning
(A)
CAUTION:
This unit is not watertight. Do not clean with a water jet/jet spray.
Do not immerse the unit in water.
1. Turn the unit off and unplug the power cord from electrical receptacle.
2. Remove the pans and covers. Wipe all parts and unit with a damp cloth.
DO NOT use a green Scotch Bright pad cleaner, ice or water.

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To change a menu selection for a specific pan cavity, use the following steps:
A. Press and hold the PRINCE CASTLE LOGO button for 6 seconds.
All Pan displays will show PROG. All LED Timers will be RED.
B. Press a Pan Arrow button to change the menu. The LED Timer will
change to YELLOW and the display will change from PROG to the
assigned menu item.
E. Repeat steps A – D as required for other Pan displays. Press the PRINCE
CASTLE LOGO button to exit the Program Mode.
NOTE: A pan may be set as “not used” by assigning “- - - -” as its product.
C. Press the UP or DOWN Arrow
button to scroll to the desired
menu item.
D. Press the ENTER button
to select the menu item.
1
NOTE: Setting a pan to a particular product will automatically change the other pan in that zone to the same product.
Setting Product Location
To shut down the unit,
turn the Power On/Off switch (A) to OFF position.
2
(A)
WARNING:
Before performing any maintenance, turn the
power switch to the OFF position and unplug
the power cord from the electrical receptacle.
Cleaning
CAUTION:
This unit is not watertight. Do not clean with a water jet/jet spray.
Do not immerse the unit in water.
1. Turn the unit off and unplug the power cord from electrical receptacle.
2. Remove the pans and covers. Wipe all parts and unit with a damp cloth.
DO NOT use a green Scotch Bright pad cleaner, ice or water.

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Default Menu Items
Zones
All bin configurations are set up with zones,
which correspond to a set of heaters that
work together to hold the product. A single
product can be programmed into each zone.
The timer bars are equipped with this
knowledge. If the product in one slot of a
zone is changed, the other slot will automati-
cally change to that product as well.
2X2 2X3
2X4
3X2
4X2 3X4
BREAKFAST PRODUCTS
DISPLAY NAME PRODUCT NAME
HOLD TIME
(MINUTES)
COOK MORE TIME
(MINUTES) TOP TEMP (°F) BOTTOM TEMP (°F)
EGGS SCRAMBLED EGGS 90 4230 200
FREG FRIED EGG 90 2230 200
PCAK PANCAKES 30 2180 170
BISC BISCUITS 60 16 180 180
FTST FRENCH TOAST 60 2245 230
SAUS SAUSAGE PATTY 120 2235 215
HAMC COUNTRY HAM 90 5215 200
BURGER PRODUCTS
DISPLAY NAME PRODUCT NAME
HOLD TIME
(MINUTES)
COOK MORE TIME
(MINUTES) TOP TEMP (°F) BOTTOM TEMP (°F)
WHOP WHOPPER 40 3240 180
JR18 WHOPPER JR. (2018) 90 3240 210
CHICKEN PRODUCTS
DISPLAY NAME PRODUCT NAME
HOLD TIME
(MINUTES)
COOK MORE TIME
(MINUTES) TOP TEMP (°F) BOTTOM TEMP (°F)
BCKN BREAKFAST CHICKEN 60 4250 220
CFRY CHICKEN FRIES 60 2260 235
PFRY PRETZEL CHICKEN FRIES 60 2260 235
OCS ORIGINAL CHICKEN 90 4210 190
CKJR CRISPY CHICKEN JR. 60 3240 220
CRIS CRISPY CHICKEN 30 7210 190
SPCH SPICY CHICKEN 30 7210 190
GCHK GRILLED CHICKEN 90 3220 190
CNUG CHICKEN NUGGET 60 3260 235
OTHER PRODUCTS
DISPLAY NAME PRODUCT NAME
HOLD TIME
(MINUTES)
COOK MORE TIME
(MINUTES) TOP TEMP (°F) BOTTOM TEMP (°F)
CZST CHEESE STICKS 60 2200 200
CTOT CHEESY TOTS 120 4200 200
TACO TACOS 40 2215 200
FMAC FLAMING HOT MAC & 60 3200 200
FISH FISH 60 4240 200
SPAM SPAM 120 2235 215
PSAU PORTUGUESE SAUSAGE 120 20 235 215

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Troubleshoong
Problem Probable Cause Solution
No Power
Power switch is turned off,
Power cord is not plugged in.
Turn power switch to ON position,
Ensure power cord is connected
to proper receptacle
Unit will not heat up Wrong power cord, loose connection on
power switch and/or heater
CALL TECH SUPPORT
1-800-722-7853
Unit heats up but timer
bars do not work
Timer bar wiring disconnected,
timer bar is defective
CALL TECH SUPPORT
1-800-722-7853
Unit under/over heats Check temperature settings
CALL TECH SUPPORT
1-800-722-7853
Display flashes OPN and
REL Open relay, circuit or heater inoperable
CALL TECH SUPPORT
1-800-722-7853
Display flashes SHR and
REL
Shorted relay, circuit inoperable,
open heater, unplugged ribbon cable
CALL TECH SUPPORT
1-800-722-7853
Display shows HHH for
extended period and heat-
er surface temperature is
hot
Temperature is above 300 F (149 C),
Abnormal operation
CALL TECH SUPPORT
1-800-722-7853
Display shows HOLD
Only displayed on a 3X4 Bin display
board, when the operator changes the bin
address or during calibration
HOLD message means the 2 PC boards
in the bin are communicating,
wait until the message disappears
Display shows WAIT When in stand alone mode and the oper-
ator makes change to the product profile Wait until the message disappears
Display shows INIT When switching from Kitchen Minder
to stand alone mode
Bin is learning Kitchen Minder menus,
wait for message to disappear
Timer bar displays
COMM DOWN
Bin is not communicating with
Kitchen Minder Refer to Kitchen Minder setup manual
For all technical support in North America, please contact PRINCE CASTLE LLC 1-800-722-7853
For technical support worldwide, contact your local service representative / installer.
WARNING: To avoid personal injury and possible damage to the unit, troubleshooting and repair of electrical equipment
should be performed by qualified service personnel. This unit should be unplugged when servicing. Except when electrical
tests are required. Use extreme caution during electrical circuit tests as live circuits may be exposed.

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DIAGNOSTICS
For all diagnostic messages on the holding bin, the message will appear on the timer bar located at the pan that is triggering the message.
The message is a two-word message that will cycle through on the timer bar in addition to the product name at that pan location.
1. WARM | UP | XXXX – When turning on holding bin the warm up message will appear until heaters reach within 15°F set point.
a. Cleared when within 15°F of the set point.
2. HTR | OFF | XXXX – Heater off message appears when both the upper and lower heaters are off.
a. Cleared when heater is turned on.
3. HTR | LOW | XXXX – Heater low appears if the temperature falls 15°F below the set point.
a. Cleared when temperature is back in range. If not cleared, would require a service technician to repair.
4. HTR | HIGH | XXXX – Heater high appears if the heater is above 285°F for 20 minutes.
a. Cleared when temperature is back in range. If not cleared, would require a service technician to repair.
5. RLY | SHRT | XXXX – Relay short error occurs when there is a thermocouple or heater problem.
a. Bin requires service to further troubleshoot and repair.
6. RLY | OPEN | XXXX – Relay open error occurs when there is a thermocouple or heater problem.
a. Bin requires service to further troubleshoot and repair.
7. COMM | DOWN | XXXX – Communication down error occurs when the temperature data is not being properly communicated.
a. Check that unit is in bin1/BAR2/BAR3. Otherwise, requires service technician to troubleshoot.
USB Update Procedure
1. First, un-plug any communication cables from the holding bin. These devices will interfere with the timer bar boot loading process.
2. Place the update files on the USB flash drive in the main directory (Do not put them in a folder on the flash drive). There are five* files that
you will need to put on the drive. Two for the controller board, mainbin.hex and DHBFWBIN.TXT. Three for the timer bars, mainbar.hex,
auxbar.hex and DHBFWBAR.TXT.
3. Once all files are on USB drive, turn power off to bin and place the USB drive with the files into USB port on the front of the bin.
4. While holding down crown button on front right side of the bin, above the power switch, turn the power to the bin on.
5. Keeping the crown button pressed, wait for the “BL” (boot load) message to appear on the screen. Release the button approx. 5 seconds
after the “BL” message appears or once the USB stick light begins to flash.
6. Wait for the display to show:
a. (blank while upgrading main bin firmware) e. BL02 (2 timer bars left to upgrade)
b. BL00 (searching for timer bars to upgrade) f. BL01 (1 timer bar left to upgrade)
c. BL04 (4 timer bars left to upgrade) g. BL00 (0 timer bars left to upgrade)
d. BL03 (3 timer bar left to upgrade) h. BN04 (4 timer bars detected and done with programming)
7. You can check the version number on the timer bars by pressing the Prince Castle logo button and the down button on timer bar.
*EHB34XX requires seven files. The two additional to those listed are mainbar2.hex and auxbar2.hex.
Diagnoscs

Printed in USA 10/19 © 2019 16 540-573revD-EN
Dedicated Holding Bin
EHB34-2 Series
Wiring Diagram

540-573revD-EN 17 Printed in USA 10/19 © 2019
Dedicated Holding Bin
EHB34-2 Series
Exploded View
ITEM
NO.
PART
NUMBER DESCRIPTION
ITEM
NO.
PART
NUMBER DESCRIPTION
ITEM
NO.
PART
NUMBER DESCRIPTION
1197-232S FOOT (4 PACK) 8510-375S* TIMER BAR, BACK BASE 14 78-184S POWER SWITCH
2540-1072S HTR, BOTTOM SHELF, LOWER 9510-377S* TIMER BAR, BACK TOP 15 95-1819S USB CORD
3540-1226S HTR, CENTER SHELF, LOWER 10 540-1158S LATCH, CATCH 16 540-1472S* BOARD 1
4540-1224S HTR, CENTER SHELF, UPPER 11 540-1251S LID (4 PACK) 17 540-1426S* BOARD 2
5540-1222S HTR, TOP SHELF, UPPER 12 USE TABLE POWERCORD 18 95-2011S* ETHERNET CONNECTOR
6510-374S* TIMER BAR, FRONT BASE 13 541-1215S* OVERLAY, DISPLAY 19 88-709-2-11S SPEAKER
7510-376S* TIMER BAR, FRONT TOP 20 88-824S
FILTER (NON-U.S. AND
NON-CA MODELS ONLY)
1
2
3
4
5
7
10
11 13
1514
17
*Recommended
spares for stocking
18
3
4
6
1619
8
912
20
Model Sux Power Cord
<None>, -CA 72-476S
-AU 72-675S
-BR 72-671S
-CL 72-684S
CE, -RU 72-404S

Printed in USA 10/19 © 2019 18 540-573revD-EN
Dedicated Holding Bin
EHB34-2 Series
REV DATE DESC.
A4/15/19 RELEASE
B9/11/19 UPDATED MODEL TITLE
C10/2/19 CHANGED TO “–2”
MODEL SERIES
D10/3/19 UPDATED WIRING DIA-
GRAM