Page 2
Introduction and General information Congratulations on the purchase of your WMF coffee machine. The WMF 950 S coffee machine is a fully automatic single-cup machine for espresso, café crème, cappuccino, milk coffee, latte macchiato, milk foam, and hot water. Follow the User Manual CAUTION >...
Page 5
Commissioning procedure ............HACCP cleaning schedule Maintenance and descaling Maintenance WMF Service User Manual WMF 950 S...
Page 6
10.3 Errors with error message 11 Safety and warranty 11.1 Hazards to the coffee machine 11.2 Directives 11.3 Duties of the owner / operator 11.4 Warranty claims Appendix: Technical data Appendix: Accessories and spare parts Digital User Manual edition Index User Manual WMF 950 S...
Page 7
> Follow all the safety instructions. General safety instructions Hazards to the operator At WMF, safety is one of the most essential product features. The effectiveness of safety devices can only be ensured if the following points are observed: >...
Page 8
A coffee machine poses a potential for hazard when correctly used, despite the use of safety devices. Please observe the following instructions when using the coffee machine to prevent injury and health hazards: User Manual WMF 950 S...
Page 9
Pull out the plug to do so. The person performing the maintenance or repair must always be able to check, with a clear line of sight, that the power supply has been disconnected. User Manual WMF 950 S...
Page 10
> Always place an appropriate cup under the spout before dispensing a beverage. Risk of injury CAUTION • Long hair or clothes could become caught in the grinder head and drawn into the coffee machine. > Always protect hair with a hairnet. User Manual WMF 950 S...
Page 11
Health hazard CAUTION • The milk system cleaner and the cleaning tablets are irritants. > Follow the protective measures on the packaging of the cleaning agents. > Only put in a cleaning tablet when an appropriate message is displayed. User Manual WMF 950 S...
Page 12
• Fluids can be discharged from the coffee machine if used improperly or if errors occur. These fluids can cause a slipping hazard. > Regularly check the coffee machine for leaks, and make sure no water is coming out. User Manual WMF 950 S...
Page 13
> The coffee machine must only be used as intended. • The WMF 950 S is designed to dispense beverages made with coffee and/or milk. • The coffee beans, milk products must be suitable for processing in a fully automated coffee machine. The products must not be processed after their expiration date.
Page 14
0.08 mm mesh size, on-site. At least 0.2 MPa (2 bar) supply pressure at 2 l/min. Maximum 0.6 MPa (6 bar). Important. If the customer’s on-site flow pressure exceeds 0.6 MPa (6 bar), then a pressure reducer must absolutely be connected upstream and set to a maximum of 0.6 MPa (6 bar). User Manual WMF 950 S...
Page 15
The manufacturer shall not be liable for any damage resulting from this. • Under no circumstances may the WMF 950 S be used to dispense and heat liquids other than coffee, hot water (beverages, cleaning) or milk (cooled, pasteurised, homogenised, UHT).
Page 16
> Always shut off the main tap in the water inlet pipe when shutting down. > Always empty the drip tray. > Connect the coffee machine to a water drain. User Manual WMF 950 S...
Page 17
The work must be carried out by authorised installation technicians in compliance with general, country-specific and local regulations. The WMF Service engineers must only connect the coffee machine to existing prepared connection points. WMF Service is neither authorised nor responsible for carrying out any on-site installation work prior to connection.
Page 18
Introduction | Parts of the coffee machine Introduction Parts of the coffee machine “Ready to operate” display Header bar 950S Ristretto Espresso Americano Café Crème Hot Milk Milk coffee Hot Water Cappuccino Latte Macchiato Milk foam 100 % Function bar User Manual WMF 950 S...
Page 19
Water tank Hot water spout Removable drip tray with drip grid Grounds container Touch display for beverage buttons and settings “Ready to operate” display Menu pad (opens the main menu) Manual insert Barista pad Page reference Cup volume User Manual WMF 950 S...
Page 20
Follow the Warranty chapter • for the installation location w starting on page 89 > Always follow the User Manual. Technical data w starting on page 90 Note / tip NOTE • Instructions for safe use and tips for easier operation. User Manual WMF 950 S...
Page 21
Quoted in °dKH. The water hardness is a measure of the calcium dissolved in the drinking water. Combi spout Double spout Decaf Decaffeinated coffee Main water supply tap Water stop valve, angle valve Pressing Automatic pressing of ground coffee prior to brewing cycle. Rinsing Intermediate cleaning User Manual WMF 950 S...
Page 22
• The installation location must be dry and IMPORTANT protected against water spray. Follow the Warranty chapter • Some condensate, water, or steam can always w starting on page 89 be discharged from a coffee machine. Technical data w starting on page 90 User Manual WMF 950 S...
Page 23
89 In case of doubt, do not start up the coffee Parts of the coffee machine machine, and inform the WMF Service. w page 18 > Retain the original packaging in the event Accessories and spare parts w page 93 of any subsequent return.
Page 24
Start-up | Start-up program ✻ Unpack the WMF 950 S and place the coffee machine on a stable, horizontal surface ✻ Observe the technical data Technical data w page 90 ✻ Plug the power cord for the coffee machine into an appropriate electrical outlet •...
Page 25
The start-up program provides a step-by-step IMPORTANT guide through the remaining start-up steps on Change settings the display. w Software > Follow the display messages. starting on page 38 • The set values can be changed after start-up. User Manual WMF 950 S...
Page 26
This item is a step that is performed during the start-up program. For drinking water with carbonate hardness from 5 °dKH or higher, a WMF water filter must be fitted; otherwise, the coffee machine can be damaged due to build-up of scale. Determine the water hardness Ask your water company for information about the hardness of your drinking water.
Page 27
> Only use products that are suitable for Follow the Safety chapter consumption and for use with the coffee w starting on page 7 machine. > The bean hopper, and the manual insert may only be filled with materials for the use intended. User Manual WMF 950 S...
Page 28
These selection buttons appear on the Example: Barista pad display after the beverage has been selected. Activate and set up optional pads w Function bar page 40 Cup size adjustment 100 % Free selection of the cup volume is optionally available. User Manual WMF 950 S...
Page 29
Follow the Warranty chapter • If no milk cooler is used, then only chilled w starting on page 89 milk can be used with the WMF milk lance. Milk nozzle The milk nozzle is integrated in the milk hose. • With Click+Clean adapter: chilled milk (black) •...
Page 30
• Use only when the Click+Clean adapter is attached to the milk hose. • Operating without the Click+Clean adapter is not permissible. Hot water dispensing ✻ Place a cup of the appropriate size beneath the hot water spout ✻ Touch the hot water button User Manual WMF 950 S...
Page 31
> After the shut off for several days, remove and clean the bean hopper. > Replace the bean hopper and refill the bean hopper as needed. > Dispense at least three beverages. This ensures that new beans will be used. User Manual WMF 950 S...
Page 32
Coffee prepared using the manual insert ✻ Touch “Manual insert” on the pre-selection pad and open the lid ✻ Insert ground coffee (maximum 14 g) ✻ Close manual insert lid ✻ Touch the desired beverage button Manual insert for ground coffee User Manual WMF 950 S...
Page 33
The coffee machine will be soiled. This may w starting on page 89 cause subsequent damage to the machine. > Always empty the grounds container before replacing. > If grounds container cannot be replaced, check chute for coffee residue and remove. User Manual WMF 950 S...
Page 34
✻ Empty drip tray ✻ Place cover correctly ✻ Place the grounds container ✻ Replace drip tray with the grounds container If the cover is not inserted correctly, the coffee IMPORTANT machine reports that no drip tray is inserted. User Manual WMF 950 S...
Page 35
• There is a risk that the drip tray can overflow due to errors and malfunctions. As a result, the entire coffee machine can be damaged. > >When using a constant water connection, the machine must also have a water drain. User Manual WMF 950 S...
Page 36
With the constant water connection, the water IMPORTANT tank may be removed only when the display Constant water connection shows an appropriate message, or when the retrofit kit coffee machine is switched off. w Accessories and spare parts page 93 User Manual WMF 950 S...
Page 37
✻ Press the ON/OFF switch briefly (approx. 1 second) The Click+Clean adapter is required. ✻ Follow the instructions on the display ON/OFF switch The coffee machine then switches off. ✻ Disconnect mains plug Coffee machines with a constant water connection ✻ Turn off main water supply tap User Manual WMF 950 S...
15 % stronger than the setting * touch 2x 1 bean 15 % weaker than the setting * * Maximum quantity of ground coffee 14 g per brewing cycle The coffee strength will be altered for the next brewing cycle only. User Manual WMF 950 S...
Page 41
The cup volume is indicated in percent. Controller in the centre 100 % as set Controller all the way left 50 % less Controller all the way right 50 % more User Manual WMF 950 S...
The milk system rinse rinses the milk hose, the milk nozzles, and the milk foamer. Milk system rinsing w Care page 61 DS_05_03_03 Brewer rinsing Brewer rinsing Brewer rinsing is an intermediate cleaning process for the brewing unit. Brewer rinsing w Care page 63 User Manual WMF 950 S...
After filter change there is an automatic program sequence to rinse and bleed the anti-scale filter and water system. Hot water runs out of the hot water spout during this process. Without water filter ✻ Set water hardness User Manual WMF 950 S...
The beverage will be brewed several times, as set. Up to 12 times the set quantity can be dispensed with one push of a button. Available for beverages with coffee and with milk mixtures, as well as for hot water with the “metered” dispensing option. User Manual WMF 950 S...
• Milk foam + coffee • Milk foam + coffee (simultaneously) With the “Order” selection the order can be defined whether coffee or milk is dispensed first (Coffee first / Coffee second) User Manual WMF 950 S...
Water filter settings Water filter inserted litres Sliding the “Water hardness setting” controller to the right increases the water hardness setting, and sliding left reduces it. Select “Water filter inserted”, to activate the water filter and set the capacity. User Manual WMF 950 S...
Current storage location Default Load factory data Volume Local video AD Load from USB stick. Set barista button / Set fill level Options: • active • inactive Default value: active active The pads are displayed when “Ready to operate”. User Manual WMF 950 S...
✻ Fill the bean hopper ✻ Use the coffee measuring spoon ✻ Touch Grind The portioner calibration begins. ✻ Follow the instructions on the display Grounds disposal through the counter (optional) Options: • active • inactive Default value: inactive User Manual WMF 950 S...
New software version can be loaded to the coffee Firmware update machine from the USB stick. ✻ Download the ZIP file from the WMF 950 S website ✻ Unpack the ZIP file ✻ Save the HMI file to a USB stick The USB stick must be in FAT32 format.
DS_05_06_02 Settings PIN Setting On entering the valid PIN, access granted to: DI_getr DI_system Beverages System DI_timer DI_sprache Timer Language DS_05_06_03 Accounting PIN Accounting On entering the valid PIN, access granted to: DI_pin DI_abr Accounting (with “delete”) User Manual WMF 950 S...
Language The language used in the display is set here. The available languages are displayed in local language. 25.08.21 08:54 25.08.21 08:54 Language Language Main menu Care Beverages System Information Language Accounting Timer Exit Default value: Englisch User Manual WMF 950 S...
The daily number of the beverages is displayed here. DS_05_09_03 Maintenance counter Maintenance counter The last cleaning and descaling of the coffee machine is displayed here. DS_05_09_04 Export counters Export counters Current counter levels are exported from the coffee machine to the USB stick here. User Manual WMF 950 S...
• active • inactive Default value: inactive active Countdown before coffee machine switches For example, 30 seconds before switch off. off (seconds). DS_05_09_05 Load factory data Load factory data Reset all coffee machine timer settings to factory settings. User Manual WMF 950 S...
Factory setting is 3. • If your coffee beans are dark in colour, it is Set grinding degree recommended to use a coarse setting (4 or 5). • Settings to the grinding degree will take effect only after dispensing two cups of coffee. User Manual WMF 950 S...
• Germs can multiply in a coffee machine that Follow the Safety chapter is not in use. w starting on page 7 > Prior to and after every instance that the machine is shut off for several days, perform all cleanings. User Manual WMF 950 S...
Page 58
CAUTION • All cleaning agents are perfectly tuned to the Follow the Safety chapter cleaning programs. w starting on page 7 > Use only WMF cleaning and descaling agent. Health hazard / CAUTION irritation and scalding hazard Follow the Safety chapter w starting on page 7 •...
= Daily, at least once per day, and as needed Weekly = Weekly cleaning Regularly = Regularly as needed Automatic = Automatic processing Message = After the display shows a message = Daily for severe soiling = Optional (depending on the model) User Manual WMF 950 S...
Cleaning programs 7.3.1 System cleaning The system cleaning is an automatic cleaning program and cleans the coffee system with a WMF cleaning tablet. A milk system rinsing is part of the system cleaning. Total duration is approx. 10 minutes. The message to clean the system appears automatically after 200 brewing cycles, or after 6 days, whichever...
This makes sense if there are longer periods between dispensing milk beverages. The milk system rinsing rinses the milk hose, the milk nozzles, and the milk foamer. ✻ Start the Care menu ✻ Touch Milk system rinsing ✻ Follow the information on the display User Manual WMF 950 S...
When the foamer rinsing is activated, there must be no previously dispensed beverages located beneath the combi spout. If milk rinsing is set to “inactive,” then the milk NOTE system must be manually cleaned every day (even Click+Clean machines). User Manual WMF 950 S...
An acoustic warning signal sounds before Brewer rinsing starts. While the rinsing cycle is running, there must be no previously dispensed beverages located beneath the combi spout. ✻ Start the Care menu ✻ Touch Brewer rinsing ✻ Follow the information on the display User Manual WMF 950 S...
7 surfaces and spouts become hot. > If the coffee machine is still hot, a cooling routine starts first. Duration of the cooling routine is 5–10 minutes. > Wait until the cooling routine has finished. User Manual WMF 950 S...
Page 65
Care | Descaling • WMF care products are designed and tested IMPORTANT for use with these materials. Any other Follow the Warranty chapter descaling agent may cause damage to the w starting on page 89 coffee machine. > Use only WMF Descaling Agent.
Care | Manual cleaning Manual cleaning Order numbers for the WMF care program w Accessories and spare parts page 93 7.5.1 Clean the operating panel (CleanLock) ✻ Touch CleanLock A 15-second countdown starts. The touch display can now be cleaned. The touch display is activated again 15 seconds after the last time it was touched.
✻ Clean the water tank with a standard cleaning brush ✻ Clean the floater and the check valve regularly ✻ Thoroughly rinse water tank with clear drinking water ✻ Refill the water tank with clean drinking water and replace it User Manual WMF 950 S...
✻ Remove the drip tray grid and clean it with the cleaning brush ✻ Clean drip tray thoroughly ✻ Rinse the drip tray and the drip grid with clear drinking water ✻ Dry the drip tray and the drip tray grid, reassemble and replace User Manual WMF 950 S...
> Disconnect mains plug. Health hazard CAUTION • In case of eye contact, the WMF milk system Follow the Safety chapter cleaner can cause severe eye injury. w starting on page 7 > Ensure that the milk system cleaner never makes contact with the eyes of a person or...
Page 70
(and through the milk nozzle) so that all areas are cleaned ✻ Repeat the process several times if necessary ✻ Mix 5 ml of WMF special cleaner with 500 ml of warm drinking water ✻ Place all components, including the cleaning brush, in the prepared cleaning solution All parts must be completely immersed in the cleaning solution for at least 5 hours.
Page 71
Click+Clean adapter and the hot water outlet. ✻ Assemble the milk foamer Do not grease the parts for assembly, just get them damp. ✻ Assemble the parts and press them in tightly ✻ Replace milk foamer in the combi spout User Manual WMF 950 S...
The bean hopper and bean hopper cover can be cleaned as needed and at regular intervals. Recommendation: monthly. Risk of injury CAUTION • Long hair could become caught in the grinder head and drawn into the coffee machine. > Always protect hair with a hairnet. User Manual WMF 950 S...
Page 73
✻ Clean the bean hopper with a clean, damp cloth ✻ Allow bean hopper to dry completely ✻ Fill the bean hopper ✻ Lock the bean hopper by turning the lever forward by a quarter turn ✻ Place the bean hopper lid User Manual WMF 950 S...
If you take your coffee machine out of operation for a longer period of time we recommend the procedure described below. Please additionally observe the instructions in the User Manual for WMF coffee machines, WMF add-on units and WMF accessories! ✻ Perform a complete system cleaning, including milk system cleaning ✻...
Page 75
✻ Clean the tanks according to the instructions If there is a risk of frost at the installation location, store the machine in a protected location. Contact Service about antifreeze protection. User Manual WMF 950 S...
With correct installation, care, maintenance, and cleaning, WMF coffee machines meet the requirements described above. If care and cleaning of the coffee machine is not carried out properly, dispensing milk beverages will constitute a food hygiene hazard point.
Page 77
2. Clean the operating panel, grounds container, drip tray, and housing w User Manual, Care chapter 5. Clean the bean hopper Clean the combi spout w User Manual, Care chapter Cleaning steps Cleaning steps Time Signature Time Signature User Manual WMF 950 S...
Maintenance Maintenance after the display message; may only be Service maintenance message w Messages and instructions undertaken by trained personnel or by WMF Service, as page 80 in this instance components affecting safety must be replaced. The following care or maintenance stages are provided: •...
Maintenance and descaling | WMF Service WMF Service You can reach WMF Service if the local service point is Important not known. For other maintenance work and repairs, please contact your local WMF Service. The telephone number WMF GmbH can be found on the address sticker on the coffee machine and on the WMF Platz 1...
✻ Change water filter For coffee machines with a constant water connection, we recommend Follow water filter instructions. using a water filter ✻ Call WMF Service when needed Call WMF Service Error messages and malfunctions w page 81 Error number is displayed Service message Service messages are instructions.
If this does not rectify the error or if the error indicated is not listed please call WMF Service. Some messages lead to blocking of individual functions. You will notice this by the fact that the beverage button illumination goes out.
Error Action instructions number description No temperature ✻ Switch the coffee machine off and on again detected. ✻ If error not remedied call WMF Service 10.3 Errors with error message Error pattern Error Action instructions description System empty No water detected ✻...
Page 83
✻ Have the on site water supply and water pressure checked by a technician ✻ If error not remedied call WMF Service Temporary solution ✻ Deactivate the “constant water connection” and operate the machine via water tank...
Page 84
✻ Dispense a test beverage ✻ Adjust the grinding degree as desired afterward w Other settings w Set grinding degree, page 56 ✻ If error not remedied call WMF Service Drip tray cannot be ✻ Check whether the drip tray has been pulled out while...
Coffee grinder • Foreign objects can damage the coffee grinder. Such damage is not covered under the warranty. > Ensure that no foreign objects land in the coffee bean hopper. User Manual WMF 950 S...
Page 86
• For drinking water with carbonate hardness from 5 °dKH or higher, a WMF water filter must be fitted. Failing to use the water filter recommended by WMF Service may damage the coffee machine (e.g.
Any modifications to the machines that are not approved by us will cause this declaration to become invalid. Collecting technical documentation: WMF GmbH. The original declaration of conformity is included with the machine. The device bears the CE mark.
These measures are conducted by WMF Service or by WMF authorised service personnel as part of the maintenance work. System cleaning must be carried out using only the WMF special cleaning agent w Accessories and spare parts WMF special cleaning agents intended by WMF for...
Important modifications undertaken without the consent of Maintenance w page 78 WMF, or by repair or reconditioning work on the part of the purchaser or by third parties. • With respect to faults caused by inappropriate or improper use. User Manual WMF 950 S...
Do not use the old set of hoses. Water quality For drinking water with carbonate hardness from 5 °dKH or higher, a WMF water filter must be fitted. Water tank volumes approx. 1.8 l Use at elevation above sea <...
Page 91
For operating, service, and safety reasons the machine should be installed with a clearance from the building or non-WMF components of not less than 50 mm at the sides and 50 mm at the back. A minimum working space of 800 mm in front of the coffee machine is recommended.
Page 92
In order to avoid possible faults from arising in our shielded data lines due to potential equalisation currents between the devices, an additional potential equalisation unit should be planned for devices connected to the vending system (see DIN EN 50310 VDE 0800–2-310). User Manual WMF 950 S...
Water filter 33 7614 4000 Water tank Documentation and instructions Set of documents: 33 7614 1010 all User Manual WMF 950 S Order numbers for the WMF care program Pack Special cleaning tablets (100 pieces) 33 2332 4000 all Bottle WMF Special cleaner for milk foamer...
Need help?
Do you have a question about the 950 S and is the answer not in the manual?
Questions and answers