If the milk is sputtering while making a latte or cappuccino, this indicates an improper amount of air is flowing into the frother. The frother assembly may be dirty and clogged with calcium deposits. Disassemble each piece of the frother, including the milk tube and connector, and clean with soap and warm water. Focus specifically on the hard-to-reach places in the frother housing (Pipe cleaners work well). Do not use anything that will expand the rubber and the connection points or soak the parts for a long period of time. This can manipulate the rubber, reducing its ability to create the air-tight seal needed for proper pressure. Furthermore, if using a Jura milk container, disassemble and clean all parts associated with the container. If cleaning does mitigate the issue, you may need to replace the Venting Tip, or in some instances (especially in the Z6, Z8 and GIGA models), you may need to replace the frother housing. The connection point for the milk tube becomes warped with use and is no longer capable of creating an air-tight seal, thus allowing too much air into the frother. The same issue occurs with Jura milk container connections and need to be replaced, such as the Rubber Gaskets, the Rubber Adaptor and Milk Siphoning Pipe.
If there is little to no steamed/frothed milk being dispensed, then there may be a blockage. Remove the frother, disassemble and clean as mentioned above. Do the same for any Jura milk container used in conjunction with the frother. Also, unscrew the black nozzle the frother secures to and ensure the opening is not blocked in any way. If cleaning does not resolve the pressure issue, there may be a blockage inside the water circuit. Run a descaling cycle. If that does not work, the water pump may be failing and needs to be replaced.
If the chrome Cappuccino Spout is blowing off of the frother during operation, the rubber insert inside the frother nozzle may be hardened, prohibiting the nozzle from securely attaching to the frother housing. The nozzle needs to be replaced. Also, the part of the frother that the nozzle connects to may be hardened and unable to keep the nozzle secured. Replace the frother housing.
Common Drip Tray Error Messages
The Drip Tray catches excess water/coffee while the machine is operating. When the drip tray fills to its max capacity, the water reaches the bottom of the metal contacts, which rest on internal metal contacts that connect to the board, thus, creating an electrical circuit. The current travels from the drip tray contacts to the board. The machine signals to the user that the drip tray needs to be emptied.
Message
Fix
Empty Tray
Tray Missing
Drawer Missing
Before replacing any parts, try gently removing the metal contacts from the drip tray. Clean the contacts and the drip tray where the contacts are secured with soap and water. Accumulation of wet grounds in this vicinity will cause a false reading that the drip tray needs to be emptied. Also, clean the internal contacts with a cotton swab, slightly moistened with a mild cleaning agent for metal. Dry the internal contacts and contacts on Drip Tray before reinserting.
If contacts are dulled or corroded, they need to be replaced. Also, check corrosion on internal contacts.
Many models have a micro-switch that is activated by the Drip Tray or Grounds Container Tray when inserted, which signals to the board to proceed to the next step. If the micro-switch lever is broken, jammed or corroded, the machine will not recognize the Drip Tray is inserted. Replace the micro-switch, if necessary.
Empty Grounds
Many models have a micro-switch that is activated by the Grounds Container Tray when it is inserted, which signals to the board to proceed to the next step. If the micro-switch lever is broken, jammed or corroded, the machine will not recognize the Grounds Container was emptied and the tray reinserted. Replace the micro-switch, if necessary.
The Grounds Container Tray was reinserted too soon after the machine asked to empty the grounds. Take tray out and wait 10 seconds before reinserting.
For the C-E-F models, if the tabs are broken on the rear of the coffee grounds container tray, the machine may register an "Empty Grounds" message, even if the grounds container is empty. The coffee grounds container tray needs to be replaced, if this occurs.
Common Coffee Dispensing Errors
Error
Fix
Coffee Dispensing Slowly
Coffee Dispensing Unevenly
Coffee Leaking Behind Spout
The Grinder is grinding the beans too fine. Adjust the grinder to a coarser setting. We recommend vacuuming out the Grinder before adjusting to a coarser grind. When beans are ground too finely, the grinds compact inside the grinder, causing an inconsistent grind. Only adjust the grinder coarseness setting while the grinder is activated. It may take 4-5 cups made on the same setting to determine if it is the optimum grind.
If the spouts are dispensing coffee slowly or unevenly, then the coffee dispensing spouts are partially clogged. Running a cleaning cycle may temporarily solve this problem, but the spouts may need to be removed and manually cleaned.
If no coffee is dispensed, or the coffee leaks behind the spouts, then the coffee dispensing spouts are clogged. The spouts need to be removed and manually cleaned. Coffee grinds accumulate in the dispensing spouts over time if the grind setting is too coarse, extremely oily beans are used or cleaning cycles have been neglected.
No Coffee Dispensed
The Grinder is grinding the coffee beans too finely. This may cause a System Fill message to appear and the used grounds to be soaked and look like mud. Adjust the grinder to a coarser setting. Continuously grinding beans on an incorrect setting can cause an excess of back pressure, which may cause hoses to burst or the Water Pump to overwork until it fails.
The spring and rod mechanism in the brew group drain valve is damaged, which causes the water for the brew cycle to drain into the drip tray without reaching the coffee grounds in the brew group.
The Magnet Valve, or Stepper Motor, is stuck and keeping the pusher rod of the drain valve compressed, causing all or some of the water to dispense into the drip tray. This part must be replaced.
Common Water Tank Errors
Error
Fix
Water Leaking from Water Tank
Fill Water Tank Message
Water Filter Not Tight
The Jura Water Tank contains an O-Ring that is affixed to a plunger. The O-Ring allows the flow of water from the water tank when the spring to the plunger is compressed. If the Water Tank is leaking when it is not fitted onto the coffee machine, the Water Tank O-Ring may need to be replaced. If there is water leaking while the Water Tank is fitted onto the machine, the Water Inlet Valve Gasket may need to be replaced, as well.
If you are receiving a Fill Water Tank message when the Water Tank is filled with water and fitted onto the coffee machine, check the Magnetic Float inside the Water Tank. When the Water Tank is filled with water, the float rises and contacts the internal Water Level Sensor to notify the CPU the Water Tank is filled and to proceed to the next step. The float may get stuck due to sediment buildup, preventing it from making contact with the internal sensor, thus causing a Fill Water Message. There is no magnetic float in the water tank of some recently released Jura coffee machines. For those models, this error may be caused by a malfunctioning Water Level CPU.
If the Water Filter appears to be loose inside the Water Tank, inspect the Water Filter Bracket to ensure there are no broken pieces preventing it from tightly securing the Water Filter. Also, inspect the bottom of the Water Tank where the Water Filter is inserted to ensure there are no broken pieces. If the Water Filter is not secured properly, there is a chance air can enter the Water Circuit of the coffee machine, which may damage parts, particularly the Water Pump.
