CodeRegistry
Brands
  1. Home
  2. Siemens
  3. EQ900 TQ900 Coffee Machines
  4. No milk froth
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

No milk froth

Appliance is not dispensing milk froth — Milk system issue

Siemens · EQ900 TQ900 Coffee Machines

What does No milk froth mean?

The Siemens EQ900 TQ900 Coffee Machine is unable to produce milk froth. This issue often points to blockages, incorrect assembly, or insufficient milk supply.

Common Causes

  • Milk system is soiled or blocked
  • Milk tube not immersed in milk or milk level is too low
  • Heavy build-up of limescale in the appliance
  • Milk system is assembled incorrectly
  • Incorrect order for connecting milk container and milk system

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Clean the milk system thoroughly, either by hand or in the Dishwasher.

  2. 2

    Ensure the milk tube is fully immersed in sufficient milk.

  3. 3

    Descale the appliance according to the instructions in your manual.

  4. 4

    Assemble the milk system correctly, ensuring all parts are securely fitted.

  5. 5

    When connecting, insert the milk system into the outlet first, then attach the milk container.

Browse all codes in this manual (27)
Verified technical data. Last updated: April 2026

Related Faults

Appliance unresponsiveAppliance no longer responds — Appliance has a faultBrewing unit jammedBrewing unit cannot be removed — Locking device jammedCoffee grounds wet/not compactCoffee grounds are not compact and are too wet — Grinding or bean issue
Source: Siemens EQ900 TQ900 Coffee Machines
Open Manual (Page 63)Search more codes in this manual