WMF Coffee Machine Troubleshooting
A WMF coffee machine gives you and your baristas the flexibility to make delicious caffeinated concoctions. If your unit is exhibiting some strange behavior, or not working like it should, it’s time to find the cause and solution. Take a look through our WMF troubleshooting guide for your coffee machine so you can get back to brewing in no time.
This troubleshooting guide is applicable for the 1500S model.
Hot Water Won’t Dispense, But Water’s in Grounds Container
Solution
Clean hot water spout. If the issue persists, contact an authorized service technician.
- NOTE—You can still dispense coffee
Choc Isn’t Dispensing, But Water’s in Grounds Container
Solution
Contact an authorized service technician.
- NOTE—You can still dispense coffee
Choc Portion Controller is Blocked, Dispensing Water Only
Solution
- Step 1—Clean portion controller
- Step 2—Empty powder container
- Step 3—Turn dosing auger until all powder is removed
- Step 4—Rinse with water if needed
- Step 5—Let dry completely
Coffee Dispensing is Different on Left and Right Sides
Solution
Clean the combi spout.
No Milk/Foam is Dispensing, But Milk Container Isn’t Empty
Solutions
- Check the milk hose for any kinks or damage
- Reroute the milk hose for better dispensing
- Clean the combi spout
- Check for any blockages in the milk nozzle
- Check milk cooler for any ice or freezing
Milk Foam is Odd/Temperature is Too Hot or Too Cold
Solutions
- Change the milk nozzle to one that’s more suitable
- Green Nozzle: Use for very cold milk (up to 46°F / 8°C)
- White Nozzle: Use for chilled milk (46 to 54°F / 8 to 12°C)
- Caramel Nozzle: Use for non-chilled milk (above 54°F / 12°C)
- Clean the combi spout
Milk Foam Spits When Dispensed/Milk is Too Hot
Solutions
- Check if the milk system needs to be cleaned. If so, follow cleaning procedures.
- Make sure the milk has been properly cooled
No Powder Dispensing
Solutions
- Clean the mixer bowl
- Check the hose for any kinks or damage
- Clean the milk system
- Use less powder in the system
- Use more water
Pump Runs Continuously, But Water’s in Grounds Container
Solution
Turn the coffee machine off and turn it back on. If issue persists, contact an authorized service technician.
Difficulty Assembling and Disassembling Milk Foamer
Solution
Apply a light amount of gasket lubricant onto the o-rings.
Choc Hopper Can’t Be Removed or Replaced
Solutions
- Turn the dosing auger drive at the portion control in a clockwise direction
- Make sure Choc hopper isn’t locked
Bean Hopper Can’t Be Removed or Replaced
Solution
Make sure the bean hopper isn’t locked.
For additional assistance, like cleaning guides and more, take a look through our online catalog of WMF manuals and diagrams.