Klarstein coffee maker with milk system draws milk poorly or not at all.

Safety first: Unplug before disassembling the milk system.

Cleaning:

• Disassemble the milk frother head and suction tube according to the manual.
• Soak all milk-contact parts in warm water with a food-safe cleaner.
• Use a small brush to clean internal passages.

Seal check:

• Inspect O-rings and seals on the milk connector and frother head; replace if cracked or hardened.