WMF 800 Manual page 28

Service life: valves
Brew valve, hot water valve,
release valve
Steam boiler inlet valve
Technician instructions
Before replacing a leaking valve, always examine the descaling and filter change
counter and descale the coffee machine.
Valves may not be opened.
It must be replaced, complete with all o-rings (without the solenoid.)
Error without display message
• Fluctuating beverage amounts with valve leakage
• Defective release valve: coffee or lots of water in the drip tray
© WMF 800 / 900 / 1000 S / 1000 pro S Edition 07/2014 - KMT
maximum 2 years or 30.000 brewing cycles (hot
water valve is also replaced during this maintenance)
maximum 6 years
Boiler water system
See instructions, error messages, troubleshooting
Part 6
T2-17