Coffee machine not dispensing

coffee machine not dispensing

If your coffee machine is not dispensing coffee, the issue is usually caused by blockages, brewing system faults, or water flow restrictions rather than a complete machine failure. The brewing process relies on water passing through ground coffee under pressure, so any obstruction in the brew unit, spouts, or internal pathways can stop coffee from being dispensed. In some cases, you may hear the machine grinding and attempting to brew, but no coffee comes out, or only a few drops are produced. Common causes include a blocked brew unit, clogged coffee spouts, limescale build-up, or a lack of water reaching the system. A full clean of the brew unit and spouts, along with descaling the machine, can often restore normal operation, but if the issue persists, it may indicate a deeper problem within the brewing or pump system that requires further diagnosis.

coffee Machine not dispensing

Why is my coffee machine not dispensing coffee or water?
If your coffee machine is not dispensing, the most common causes are a blocked brew unit, limescale restricting water flow, a failed pump, a jammed grinder, an airlock in the system, or a solenoid valve fault. Many machines will also display a fault code when flow is restricted.
Check Water Tank
- Remove and reseat
- Ensure valve opens
- Confirm tank is full
Run a Hot Water Cycle
If water dispenses from steam wand but not coffee spouts, issue may be brew unit related.
Clean the Brew Unit
- Remove (if removable)
- Rinse under warm water
- Allow to dry completely
Descale the Machine
Limescale is one of the most common causes of flow restriction.
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Cleaning & Descaling Guide
Check Bean Hopper
Stir beans
Remove oily beans
Clean grinder chute (if accessible)
Most Common Causes
Blocked Brew Unit
- Coffee oils build up
- Grounds compact inside chamber
- Machine sounds normal but no coffee exits
Limescale Restricting Water Flow
- Scale blocks thermoblock or boiler
- Flow meter cannot detect movement
- Often causes intermittent dispensing
Failed or Weak Pump
- Loud buzzing noise
- No water movement
- Machine may time out
Grinder Jam or No Beans Detected
- Beans not feeding
- Grinder spinning but not grinding
- “Fill beans” message may appear
Solenoid Valve Fault
- Water not directed correctly
- Internal blockage
- Can cause water to divert to drip tray
Airlock in System
- Common after descaling
- Occurs when water tank runs empty
- Pump runs but nothing flows