# Why does my 9 Cup Coffee Maker brew slowly or stop mid-brew?

> All coffee makers must be descaled regularly to maintain their performance Scale or mineral build up occurs when the water is heated in the boiler and can

Source: https://faq.oxo.com/en_us/why-does-my-9-cup-coffee-maker-brew-slowly-or-stop-mid-brew-HyehwidKo

Last updated: 2023-04-04T22:11:07.951Z

All coffee makers must be descaled regularly to maintain their performance. Scale, or mineral build up, occurs when the water is heated in the boiler and can be removed using acidic liquids, like descaling solution or vinegar.

  

To descale 9 Cup Coffee Maker, add descaling solution and water to the tank up to the MAX fill line. Do not fill past the MAX fill line.

Make sure empty carafe is in place with lid fully screwed on.

Unplug 9 Cup Coffee Maker. Hold OXO button and plug in at the same time. "-9-" icon displays and LED ring turns red.

Press OXO button to start. The water droplets icon will appear.

  

After descaling, empty carafe and rinse. Fill water tank with cool, clean water to max fill line and run a 5-9 cups brew cycle. Discard water before next use.

  

**Note:** Your Coffee Maker will not work properly if it is not descaled regularly. The warranty is voided if descaling is not carried out in accordance with these instructions.