Brewing Slowly or Incomplete Brew
Scale buildup in the thermoblock is the most common cause. Run a full descaling cycle. Also check that the filter is properly seated and not collapsed against the basket drain hole.
Coffee Tastes Weak
Increase your coffee dose (more coffee per cup of water). Grind finer. Ensure you are using a medium grind — too-coarse a grind produces weak, under-extracted coffee even at correct temperature.
Coffee Tastes Over-Extracted / Bitter
Reduce dose or grind coarser. For the KBGV Select, ensure the volume selector matches your actual brew size.
Carafe Dripping / Leaking
For glass carafes: inspect the lid seal and basket auto-stop (if equipped). For thermal carafes: ensure the Brew-Thru Lid is fully seated during brewing. A cracked carafe lid should be replaced.
Machine Stopped Mid-Brew
The thermal cutoff may have triggered if the machine overheated — allow 10 minutes to cool and restart. If this happens repeatedly, descale the machine.
Warranty and Support
Moccamaster coffee makers carry an industry-leading 5-year warranty. For warranty service or support, contact Technivorm Moccamaster at Moccamaster's Warranty Page.