E14
Gaggia Main Control Board / Low Voltage Supply Error

Machine shows E14 and shuts down unexpectedly during operation

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Failed low-voltage power supply on PCB, Shorted component drawing excess current, Loose main harness connector, Intermittent thermal protection on board

How to Fix / Troubleshooting

Safety first: Unplug the machine before removing any covers. Work only if you are comfortable around mains-voltage electronics.

Basic checks:

  • Power source: Verify the wall outlet is stable and not shared with heavy appliances that cause voltage drops.
  • Reset: Leave the machine unplugged for 10–15 minutes, then reconnect and test.

Internal inspection (advanced):

  • Remove the cover to access the main control board.
  • Check connectors: Ensure all harness connectors are fully seated and not oxidized or burned.
  • Visual inspection: Look for swollen capacitors, burned tracks, or signs of overheating on the PCB.

If obvious board damage is present, the main control board should be replaced as a complete unit. Because this involves mains wiring and firmware compatibility, it is recommended to have a Gaggia-authorized technician perform the replacement.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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