With this link you will be forwarded to the user manual Swipe Guide
Milk pump
Transports the cold milk from the fridge to the milk unit.
Milk mixer
Cold milk is pumped through two rotating cylindrical gears. By injecting a specific amount of air at the inlet, a cold liquid micro foam or even thick micro milk foam is created.
Air pump
Pump air into the cold milk from the fridge just before enters the milk mixer starts transform it into milk foam
Flow heater
The micro milk foam which is created by the milk mixer is ready for use in cold coffee drinks.
By passing the cold micro foam through a flow heater, a perfect heated milk foam is created for a delicious Cappuccino, Latte Macchiato, etc.
There are two flow heaters placed in serie used to carefully heat up the cold micro milk foam.
Flow heater
Each heater:
Control board
The control board is in constant connection with the Coffee machine and receives the command which preset milk product must be dispensed.
Inlet valve + pressure regulator [1011446]
Internal view
Double manifold valve [1013082]
Used in Latte+ as cold milk select inlet valve and Hot water & milk dispense valve
Spec's
Single valve [1013083]
Used as drain valve to transport the milk, waste water and cleaning detergent to the drain.
Flow meter [1007302]
Measures the volume of water which enters het Latte+ unit.
Also used in the OptiMe, OptiMe X, OptiBean X (model 2026)
Power supply 24Vdc [1010214]
Used in OptiBean X , OptiMe X, OptiMe, Latte+
Fuse [03391]
EMI / RFI filter
The purpose of the RFI/EMI filter is to filter out high-frequency noise currents (conducted RFI or EMI) present on the power lines and signal lines.
This prevents these conducted noise currents from entering or exiting the filtered device, allowing the device to function smoothly without disrupting other connected equipment.
Construction and working principle of RFI/EMI Filter:
Generally, the RFI or EMI filters' design utilizes passive circuit elements such as capacitors, inductors, and in some cases resistors to attenuate both conducted and radiated RFI/EMI.
Principle of operation
Any mechanic knows the basic operation of a refrigerator by heart. However, here are a few features:
Rating plate fridge
The next pages shows how to reach the;
Evaporator & fan (internal ventilation cover removed)
Condensor with fan (rear panel removed)
Condensor without fan (rear panel removed)
Condensate tray (Bottom fridge)
You will be redirected to the user manual.
Commisioning
You will be redirected to the user manual.
Before activating the milk system be sure you Installed and connected the Latte+ system with the Coffee Machine with the data cable.
The data cable is part of the included accessories
Activate the Milk system
LATTE+ MILK SYSTEM
Some of settings are future options and are not working
Power
Rinse due t Lactose (risk)
Plant-based milk
Number of milk types
Loaded variant milk 1
Loaded variant milk 2
If only one type of milk is used this list is inactive
See here an example of the end result.
Column LEFT
*Most of the time you only use WARM- LIQUID FOAM & SOLID FOAM because they are the base for a Cappuccino and Latte Macchiato
- milk: 65°C is recommended,
- plant based (oat) milk: 60-62°C
- more air: the milk is getting thicker
- less air: the milk becomes more liquid
- 5 seconds is about a sample of a a small cup.
- you can test as long as you need
Rinse machine
The rinsing program need to be activated once a day. The following rinsing setting can be altered:
Coffee machine settings
Milk settings
Rinse coffee machine settings
Concerns the rinse settings from the Espresso- and Mixer unit inside the coffee machine.
RINSING (whatever comes first)
RINSING OBLIGATED (On/Off)
AUTOMATICALLY (On/Off)
Selection
Rinse Latte+ unit settings
Concerns the rinse settings from the milk circuit inside the Latte+ unit.
RINSING MILK
Clean machine
The cleaning program need to be activated once a day. The following cleaning setting can be altered:
Coffee machine settings
Milk system settings
Clean coffee machine settings
Concerns the clean settings from the *Espresso- and Mixer unit inside the coffee machine.
*Cleaning with tablet
CLEANING (whatever comes first)
CLEANING OBLIGATED (On/Off)
Cleaning Latte+ unit settings
Concerns the cleaning settings from the milk circuit inside the Latte+ unit.
CLEANING MILK
RINSE BREWER & MIXER AFTER CLEANING MILK SYSTEM [ON]
FIXED TIME [OFF] :
After introduction of the Latte+ milk unit a second maintenance screen is introduced which make it possible to run the OptiMe X /OptiBean X with Latte+ unit with one- or two water filters:
*default setting
How to set a recipe made with instant Topping
This instruction will show a Cappuccino recipe
Screen 1
Adjust your Cappuccino made with Topping
The following TOTAL drink settings can be adjusted:
Swipe to the second screen -->
Screen 2
The following ESPRESSO settings can be controlled
Swipe to the second screen -->
Screen 3
The following settings can be controlled
Screen 4 is only interesting for Latte+ settings
How to set a recipe made with diary milk
This instruction will show a Cappuccino recipe
Screen 1
Adjust your Cappuccino made with diary milk
The following COFFEE settings can be adjusted:
Screen 2
The following ESPRESSO settings can be controlled
Screen 3
Screen 4 (milk type 1 settings)
- Select WARM or COLD milk
- Set dispensing time LIQUID FOAM (sec.)
- Set dispensing time SOLID FOAM (sec.)
- See detailed explanation in the next instruction
- the Milk starts first, than Espresso
- the Espresso starts first, than Milk
- .....
- ......
- set here the foam sequence
Screen 5 (milk type 2 settings)
How to set milk selection buttons
In the extreme case, you can let the user choose from 3 types of milk.
*if available in the machine
How activate milk selection buttons.
Set the checkbox for each recipe (see red box):
⮾ INSTANT
⮾ LATTE+
⮾ BOTH
Deze link verwijst je door naar de OptiMe X instructie
Deze link verwijst je door naar de OptiMe X instructie
Change milk icon (future option)
Milk pictogram library
Future option
Change milk name
A keyboard appears on the screen
Recipe prices
Each drink made with different milk type can have its own price.
Recipe prices
To set the recipe prices (high/low/Free)
When a Latte+ unit is activated, the system allows you to configure up to a maximum of 3 different product prices.
PRICE HIGH
PRICE LOW
Example screen
Example screen
Set allergens info
Its possible to show allergen information.
The picture sows an example when Lactose and Gluten is selected in the Cappuccino recipe.
Set allergens info
Select for each ingredient used which allergies you want to inquire about.
After the user made a drink selection the display shows automatically the selected allergens selected for that drink
Introduction
Plant based milks - ALWAYS - shake before use! Plant based milks are indeed made from PLANT materials.
These milks always contain materials that are heavier than the water added to make the milk.
Consequently, gravity quickly causes sediment to form: the water separates from the plant material, causing the plant material to settle at the bottom of your carton or reservoir. Some plant milks are more "affected" by this than others. By getting into the habit of ALWAYS shaking all plant milks before use, you ensure the proper connection and thus the best chance of creating foam. So, shake a new carton well before use, then pour it into your plant based milk container and keep it well chilled in your refrigerator (3 degrees).
New feature from software V1.9.1 July 2026
To help you remember to shake/stir the milk well a shake/stir notification is added only when a plant based milk is activated in Latte+.
After 4 hours the user get a message to shake/stir the plant milk which is in the fridge.
During use (≡ Menu button Active)
When the stir/shake set time has been reached
During use (≡ Menu button OFF)
When the stir/shake set time has been reached the OPERATOR only can reactivate the milk again.
DAY COUNTERS
RECIPE DAY COUNTERS
CUSTOMER TOTALS (top of the list)
COFFEE, etc.
Example: Press the CAPPUCCINO line to open detailed counter information
*Free, Prices, Tokens, Test or Jug (counts per cup).
DAY COUNTER RECIPES in OPERATOR MENU
RECIPE DAY COUNTERS
CUSTOMER TOTALS
COFFEE, etc.
RESET in DAY COUNTERS
TOTAL COUNTERS
RECIPE (TOTAL ) COUNTERS
AUTOMAT TOTALS
MODEL TOTALS
COFFEE, etc.
Example: Press the CAPPUCCINO line to open detailed counter information
*Free, Prices, Tokens, Test or Jug (counts per cup).
CLEAN & RINSE COUNTERS
OptiMe X (coffee machine)
Latte+ (milk system)
The Clean & Rinse counters can be written to a SD/USB memory by using the download button.
COUNTERS CLEAN & RINSE HISTORY
You don't need to reset the history, history data older than 30 clean cycles are automatically deleted.
OPERATIING HOURS MILKSYSTEM
OPERATIING HOURS MILKSYSTEM
This overview shows you all electrical Latte+ components:
Cycles: how many times the components has been controlled.
Time: how long the component has been controlled in Hours / Minutes / Seconds
OPERATIING HOURS MILKSYSTEM
This overview shows you all electrical Latte+ components:
Cycles: how many times the components has been controlled.
Time: how long the component has been controlled in Hours / Minutes / Seconds
Latte+ Preventive maintenance
Each year (12 months) we advice to replace the milk hoses.
Art. No. 1013678 (kit)
How to RESET the LATTE+ PREVENTIVE MAINTENANCE notification
Latte+ service water filter
This attention will only appear in the display when the Latte+ unit uses its own water filter and the option Latte+ water filter is ACTIVE, in the Service menu / 05 Service notifications / 03 Water filter & brewer
Yearly recommendations for inspection
During annual machine maintenance, technicians must perform a general visual and functional inspection, including:
Every 800 operational hours, an estimated 3-4 years/160.000 milk related drinks, "Service Latte component maintenance" appears in the display and milk module 1013068 should be preventively renewed
Any mechanic knows the basic operation of a refrigerator by heart. However, here are a few features:
Picture shows the rating plate fridge
The next pages shows how to reach the;
Evaporator & fan (front)
Visible
Maintenance
Condensor & fan (rear)
Maintenance
Condensate tray (Bottom fridge)
When your Latte+ is not producing milkfoam anymore, or certain error codes occur, and you are certain that its not about settings-adjustments in your OBX-OMX ect.ect. you can decide to replace the internal milkfoam unit 1013068 completely.
The first year you are only allowed to do so regarding warrenty restrictions. No seperate parts which are part of this unit are covered the first year.
This swipeguide will show you how to swap-test-clean this milk unit in order to get your Latte+ machine producing perfect milkfoam again.
NOTE: Keep drain connection, water supply hose and connection cable towards the OBX/OMX in place and functional if possible.
Separate your Latte+ unit from your machine
Now slide the complete hood upwards and remove it
Take out this connector
TIP: Take a picture for yourself of the electronics before removing connectors following the next steps
Remove the wiring from this cable clip
Take out these 2 connectors
Remove the wiring from this cable clip
Remove this connector
Remove this connector
Remove this clamp
Take off this clamp
Take off this tube using a small flat-sided screwdriver
Release these 2 screws by 2 turns, anti-clockwise
Release these 2 screws by turning them anti-clockwise 2 turns
Move the complete unit to the left
Take the milk unit out this way
Clean the area wiht a soft, wet cloth
Preparing the new milk unit
Remove the hose, using a small flat screwdriver
Take off this white cap
Secure the new milk unit by tightening the 4 screws again
Connect this hose to the heating element outlet
Refit the clamp
Fit the red hose unto the milkpump
Refit the clamp
Refit these 2 connectors
Fit the wiring into the clamp
Fit this connector
NOTE: upper connector!!
Refit this connector
Preparing for a function test and visual inspection
NOTE: The new electronic board of the milk unit is automatically updated by the OBX or OMX unit in case the SW version of the milk unit is older than the machine software.
No extra actions needed.
Activate the milk filling modus on your machine
Follow all animated steps in the screen
While testing drinks:
Also inspect this side of the unit visual on leaks
When everything is okay:
Follow all animated steps shown in the display
Add the tablet to the cleaning reservoir
During the cleaning program:
When inspection was successfully and no leaks:
After the milk cleaning program:
Refit the hood by sliding it downwards:
Back-side like this
Refit and tighten all 4 screws on the back-side
Refit and tighten the 3 screws on the front-side and the 1 on the inside
Replace the tube:
Refit the plastic circlip to secure the pipe
Fit the Latte+ unit next to the OBX-OMX again, making sure the milk hose is not obstructed or damaged and the plastic pipe goes inside the machine
Fit the outlet to the milk hose
Now your Latte+ is ready for use again
How check some of the Latte+ inputs
Menu 2.6.1 shows you the inputs signals from the coffee machine.
The following input signals can be checked
When the checkbox is active (v) the sensor in question been detected.
The next pages informs you where the sensors are located.
Communication error
A checkmark (✓) indicates that communication between the coffee machine and the Latte+ milk unit has been lost (See TIP).
Check:
Milk sensors
Cleaning canister detection
The presence of the cleaning container is monitored by a reed sensor.
A magnet integrated into the cleaning container lid is used to detect whether the container is correctly positioned. When the cleaning container is installed correctly, the reed sensor detects the magnet inside the lid and a checkmark (✓) appears on the display (see TIP).
If the checkmark (✓) is not displayed:
Milk system fail
Result
Problem
Solutions
Milk system fail
Example Milk system fail message
Example Milk system fail message
Movie from bad contact in internal data cable (coffee machine)
Picture:
Bad contact in internal data cable (coffee machine)
Cleaning bin + lid is in the fridge.
Recipes are blocked and cannot be filled either.
OUT OF MILK
After filling and dispensing, milk sensor no longer detects milk in milk tube
OUT OF MILK LEFT
After filling and dispensing, milk sensor no longer detects milk in milk tube
OUT OF MILK RIGHT
After filling and dispensing, milk sensor no longer detects milk in milk tube
Milk system needs cleaning
When a milk container is filled for the first time* (typically in the morning), the milk system must be cleaned within 26 hours (24 hours plus a 2 hour grace period).
Once this 26-hour period has expired, the milk system will be locked and cannot be used. After the cleaning cycle has been completed, the milk system will be available for use again.
*The moment of the first milk fill action of the day is visible in the milk button (see picture). 26h after the recorded time the milk system will be clocked.
Milk system not filled
Service Latte water filter
The waterfilter counter has reached its capacity.
Latte+ Preventive maintenance
Reset in Service Menu
Shake/stir milk 1 = left side
To help you remember to shake/stir the milk well a shake/stir notification is added only when a plant based milk is activated in Latte+.
After 4 hours the user get a message to shake/stir the plant milk which is in the fridge.
Shake/stir milk 2 = right milk
To help you remember to shake/stir the milk well a shake/stir notification is added only when a plant based milk is activated in Latte+.
After 4 hours the user get a message to shake/stir the plant milk which is in the fridge.
Shake/stir milk
To help you remember to shake/stir the milk well a shake/stir notification is added only when a plant based milk is activated in Latte+.
After 4 hours the user get a message to shake/stir the plant milk which is in the fridge.
Latte+ Errors
Reset a LATTE+ error
If this function is not active, please follow the next instructions.
How to activate or deactivate the RESET Latte+ error button in the OPERATOR MENU
From Software V1.9.1 the RESET MILK SYSTEM is added on the SERVICE MENU.
SERVICE MENU / 03 SETTINGS / 05 ADD-ONS . MILK SYSTEM / REST MILK SYSTEM
Due a bug in SW version V1.8.1-V1.8.2. and V1.8.3 current machines the Latte+ unit can show "service Latte+" in the lower display
Please proceed and reset counters like shown in this swipeguide to get the message resetted.
The second filter option is standard on 9 liters in mentioned SW versions above, (unintended) and therefore "Service Latte+" occurs after 9 liters water is taken.
READ ERROR LOG
RESET
Flow heater [FTH1] temperature sensor defect
An abnormal temperature is measured by the NTC measuring the output flow from the first in line flow heater.
The Latte+ PC board is located on the opposite side of the flow heaters
Flow heater [FTH2] temperature sensor defect
The Latte+ PC board is located on the opposite side of the flow heaters
Conductivity sensor defect
Just before the medium (water / milk /cleaner) enters the mixer the conductivity is measured by two probes suspended in the medium.
The conductivity sensor pins are located to the right of the Latte+ printed circuit board.
The Latte+ PC board is located on the opposite side of the flow heaters
Flow heater [FTH1] overheat
During the milk preparation the medium temperature in the flow heater first in line is constantly monitored.
Possible cause:
Solution:
Milk system wrong configured
Possible cause:
When the Latte+ unit is prepare for use for one [1] milk only and the Software is configured for two [2] milk varieties. See link to check your settings.
Solution:
Check how the Software is configured
Flow heater [FTH2] overheat
During the milk preparation the medium temperature in the flow heater second in line is constantly monitored.
Possible cause:
Solution:
Milk system wrong configured
Possible cause:
When the Latte+ unit is prepare for use for one [1] milk only and the Software is configured for two [2] milk varieties. See link to check your settings.
Solution:
Check how the Software is configured
Flow heater [FTH1] defect
No temperature increase detected by the NTC when the first flow-through heater (FTH1) is activated.
Condition: No temperature change when FTH1 active
Blocking: No
Active: Always
Remark: Heating disabled; recipe continues
Flow heater [FTH2] defect
No temperature increase detected by the NTC when the second flow-through heater (FTH2) is activated.
Condition: No temperature change when FTH1 active
Blocking: No
Active: Always
Remark: Heating disabled; recipe continues
Press link to continue
Press link below