How to Fix a Coffee Machine Not Brewing

Overview

A coffee machine that won't brew is often due to a blockage. This guide covers diagnosing and fixing the issue.

Step-by-Step Fix

1. First, ensure the coffee machine is switched off at the mains and unplugged for safety. Perform a full descaling cycle according to your machine's manufacturer instructions, as mineral build-up is a common cause of brewing issues; check if the problem is resolved after descaling and a test brew.
2. Carefully remove the filter basket and any reusable coffee filter from your machine. Thoroughly clean them with warm, soapy water and a small brush to dislodge any coffee grounds or residue, then rinse well and reassemble, ensuring no blockages remain before attempting to brew.
3. Verify that the water tank is correctly seated and filled to the appropriate level; an improperly positioned or empty tank will prevent brewing. If the tank is full and correctly placed, check the water inlet or valve inside the machine for any visible obstructions or blockages.
4. With the machine safely plugged in and switched on, listen carefully for the pump's distinctive whirring or vibrating sound when you initiate a brew cycle. If you hear the pump operating but no water is flowing, the issue is likely a blockage, whereas a lack of sound suggests a pump malfunction.
5. If you have determined the pump is not operating, you will need to replace it; consult your machine's manual for specific pump location and replacement instructions, ensuring the machine is unplugged before attempting any internal repairs. After installing the new pump, perform a test brew to confirm water flow and normal operation.

Common Symptoms & Diagnostic Resolutions

Review the common error codes and operating symptoms below to quickly identify the root cause of the fault before ordering replacement parts.

Frequently Asked Questions