2021/01 Rev. 0.4
OptiMeOptiMe
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Problem
Possible
cause
Solution
Milk
temperature to
low.
Reducing the
milk pump
speed does not
have effect.
Insufficient steam
supply to the milk
venturi.
Check the steam boiler temperature setting.
Factory setting = 127°C (approx. 1,46 Bar)
Clean the steam venturi injector.
The injector opening ø 1,4mm can be constipated or
reduced by caked milk remains.
Use a small cleaning brush set to clean out the opening.
Ø 1,4mm
The Steam valve does not opening well.
3-way
24Vdc
0-3 bar
DN 2,5
Clean or replace if necessary. The valve my be opened
completely to identify the problem.
Before removing the steam valve from the boiler
system it needs to be de-pressurised. Service
menu 2.14 Installation / Shut down /
de-pressurise system.
ATTENTION: modification available, see next
page.
The steam boiler is full with
lime-scale. Replace the
complete steam boiler.
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