O-ring blue

O-ring blue for Wittenborg 7100/7600 is also used for the FB 5100

Wittenborg item number: 39400641

• Various faults on Wittenborg NW FB7100, BTC 7100, FB 7100 plus, FB7100 maxi.
• Lime in water tank.
• Poor cleaning of the brewer.
• Overflow water into the inlet valve. "no water in display"
• Defective heating element / overheating (Ph value on water must not be below 7)
• Pump defective (changed every 3 years)
• Whisk engine defect
• Vring leaking
• dosing Engine
• Water tank / boiler leaking (changed after 5 years incl. All rubber seals and hoses)
• Delta brews errors
• Sigma brews mistakes.
• Turns on the software program.
• Gears on the coffee mill break model BTC 7100